identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
352C87AB0064FFC4F595F8F85B147BB1.text	352C87AB0064FFC4F595F8F85B147BB1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Dictyogenus jurassicum Reding, Launay, Le Doare, Ruffoni & Vincon 2019	<div><p>Dictyogenus jurassicum Reding, Launay, Le Doaré, Ruffoni &amp; Vinçon, sp. n.</p> <p>http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:</p> <p>TaxonName:506375 (Figs. 1–25)</p> <p>Dictyogenus (Besdolus) ventralis – Verneaux, J. (1973). Annales scientifiques de l’Université de Besançon, Zoologie, Physiologie et Biologie Animale, 3ème Série, 9:98.</p> <p>Dictyogenus fontium – Reding, J.-P.G. (1998). Bulletin romand d’entomologie, 16:42.</p> <p>Dictyogenus alpinum – Verneaux et al. (2003). Hydrobiologia, 490:71.</p> <p>Dictyogenus fontium gr sp 5-GV sensu Gilles Vinçon (early-release DNA sequence on: www.boldsystems.org, unpublished)</p> <p>Materials examined. Holotype male: SWITZERLAND, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=7.059918&amp;materialsCitation.latitude=47.30047" title="Search Plazi for locations around (long 7.059918/lat 47.30047)">Jura Mountains</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=7.059918&amp;materialsCitation.latitude=47.30047" title="Search Plazi for locations around (long 7.059918/lat 47.30047)">Doubs Valley</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=7.059918&amp;materialsCitation.latitude=47.30047" title="Search Plazi for locations around (long 7.059918/lat 47.30047)">canton of Jura</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=7.059918&amp;materialsCitation.latitude=47.30047" title="Search Plazi for locations around (long 7.059918/lat 47.30047)">Karstic spring of Côte au Bouvier</a>, near Soubey, 47° 18.028074'N, 7° 3.595063'E, 570m a.s.l., 05.05.2009, leg. Gilles Vinçon, deposited in the MZL (catalogue number: GBIFCH00652518). Paratypes: same locality, 16.06.2009, 2♂, 2♀, leg. G. Vinçon, deposited in the MZL (catalogue number: GBIFCH00652530, GBIFCH00652524). <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=7.222768&amp;materialsCitation.latitude=47.28898" title="Search Plazi for locations around (long 7.222768/lat 47.28898)">Jura Mountains</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=7.222768&amp;materialsCitation.latitude=47.28898" title="Search Plazi for locations around (long 7.222768/lat 47.28898)">canton of Jura</a>, Karstic spring near river Sorne, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=7.222768&amp;materialsCitation.latitude=47.28898" title="Search Plazi for locations around (long 7.222768/lat 47.28898)">Blanches-Fontaines</a>, 47° 17.338724'N, 7° 13.36608'E, 585m a.s.l., 06.04.2017, 1L, leg. J.-P.G. Reding, deposited in the MZL (catalogue number GBIFCH00652527).</p> <p>Additional specimens. We examined many other specimens. These are stored in the collections of Jean-Paul G. Reding (RC), Bertrand Launay (BLC), Natural History Museum of Hungary (NHMH), Gilles Vinçon (GVC), Jacques Le Doaré (JLDC), Alexandre Ruffoni (ARC) and MZL.</p> <p>SWITZERLAND</p> <p>Jura Mountains</p> <p>Chasseron region, Areuse river basin, canton of Vaud, Rhine tributaries:</p> <p> Small spring at Dénériaz coomb, 46° 51.180076'N, 6° 31.639395'E, 1135m, 20.09.1993, 3L; 31.07.1996, 1L; 13.10.1996, 1L; 30.08.2000, 1L; 10.05.2002, 1L; 18.07.2006, 4L; 29.06.2010, 1L (used for molecular studies by A. Reding), 1E; 04.05.2011, 1L (used for molecular studies by A. Reding); 18.05.2011, 1L; 04.07.2011, 1L; 13.12.2013, 1L; 27.08.2014, 1L (leg. J.-P.G. Reding; RC). <p> Dénériaz torrent, Noirvaux, 46° 51.228685'N, 6° 30.969797'E, 1000 m, 31.03.2005, 6L (leg. J.-P.G. Reding; RC); 13.08.2017, 1L, (leg. J. Le Doaré; JLDC).</p> <p> Small spring, Poëta Raisse gorges, 46° 52.910488'N, 6° 36.307303'E, 1131m, 18.07.1997, 1E; 03.08.2011, 2L; 23.06.2012, 2L (leg. J.-P.G. Reding; RC). Orbe River Basin, canton of Vaud, Rhine tributaries:</p> <p> Karstic spring Les Fontannets, La Mothe, 46° 49.165452'N, 6° 33.889242'E, 548m, 09.05.2014, 1L (leg. J.-P.G. Reding; MZL under catalogue number GBIFCH00284213, used for molecular studies by SwissBOL). Doubs Valley, canton of Jura, Rhône tributaries:</p> <p> Karstic spring of Côte au Bouvier, near Soubey, 47° 18.028074'N, 7° 3.595063'E, 570m, 26.05.1997, 1♂, 2♀, 1E; 05.05.2009, 3♂; 16.06.2009, 2♂, 10♀, 2E; 20.06.2012, 4♀, 4E (leg. G. Vinçon; GVC); 12.06.2007, 3♂, 1E; 24.06.2007, 1♂, 1E (leg. R. Rupprecht; GVC); 29.05.2010, 5L (used for molecular studies by A. Reding); 14.07.2010, 1L (leg. A. Reding; RC); 20.09.2010, 11L; 23.09.2014, 2L (leg. J.-P.G. Reding; RC). Canton of Jura, Rhine tributaries:</p> <p> Karstic spring near river Sorne, Blanches- Fontaines, 47° 17.338724'N, 7° 13.36608'E, 585m, 10.03.2015, 1L (leg. J.-P.G. Reding; MZL under catalogue number GBIFCH00284212, used for molecular studies by SwissBOL); 06.04.2017, 1L (leg. J.-P.G. Reding; RC). FRANCE Jura Mountains Doubs Department (25) Doubs drainage basin, Rhône tributaries:  Spring of Doubs River, Mouthe, 46° 42.295779'N, 6° 12.548421'E, 946m, 18.04.1991, 2L; 15.09.1991, 1E (leg. J. Aubert; GVC); 14.07.1996, 1♀, 7E (leg. G. Vinçon; GVC); 13.06.2007, 1L (used for molecular studies by A. Reding); 10.05.2017, 1L (leg. J.-P.G. Reding; RC). Loue drainage basin, Rhône tributaries:</p> <p> Spring of Loue River, Ouhans, 47° 0.645115'N, 6° 17.97486'E, 529m, 10.04.2013, 1L (leg. J.-P.G. Reding; RC).</p> <p> Spring of Moulin Miguet, Nouailles Gorges, Ouhans, 47° 1.326046'N, 6° 17.934465'E, 456m, 14.05.2013, 1L; 01.04.2014, 5L; 14.04.2015, 2L (leg. J.-P.G. Reding; RC). Ain (01) and Jura (39) Departments, Ain drainage basin, Rhône tributaries:</p> <p> Karstic spring near Albarine river, Charabotte Mill (01), 45° 57.308924'N, 5° 33.286347'E, 476m, 09.06.2013, 2♂, 3♀ (leg B. Launay; JLDC); 15.06.2013, 3♀; 16.02.2014, 2L; 06.05.2014, 1♂, 3♀, 1E (leg. B. Launay; RC); 13.05. 2015, 4m, 1L, 2E (leg. B. Launay; BLC; used for molecular studies by IRSTEA, numbers B116 and B117).</p> <p> Valouse river near Cornod (39), bridge over road D 202, 46° 18.536086'N, 5° 32.227764'E, 310m, 12.09.2007, 1L (leg. J. Le Doaré; JLDC).</p> <p> Spring of Flumen river, near Les Moulins, Septmoncel (39), 46° 21.204252'N, 5° 54.395038'E, 800m, 24.07.2007, 9L; 28.04.2011, 1L (leg. J. Le Doaré; JLDC).</p> <p> Spring of Ravin de la Gaillarde, Tenay (01), 45° 56,078220'N, 5° 32,239020'E, 651m, 13.04.2018, 1L (leg. B. Launay; BLC). Ain Department (01), Valserine drainage basin, Rhône tributaries:</p> <p> Karstic spring at Creux-Godet, 46° 16.114284'N, 5° 54.894414'E, 879m, 13.04.1991, 1L (leg. J. Aubert; GVC); 17.03.2014, 2L; 30.05.2014, 1E (leg. B. Launay; BLC); 25.08.2014, 8L (leg. J. Le Doaré; JLDC).</p> <p> Brion waterfall, near Chézery-Forens, 46° 15.311212'N, 5° 54.032052'E, 810m, 03.02.2014, 3L; 14.02.2014, 3L; 17.03.2014, 24L (leg. B. Launay; BLC; 2L in RC); 04.05.2014, 3L; 30.05.2014, 2♂, 2E; 19.07.2014, 1♀, 1E; 22.12.2014, 2L; 11.04.2015, 1L; 22.05.2015, 2L; 13.06.2015, 2♂, 1♀, 1E; 08.06.2016, 1♀ (leg. B. Launay; BLC); 27.01.2015, 3L (leg. J.-P.G. Reding; RC).</p> <p> Karstic spring near Perissode farm, 46° 22.128147'N, 6° 0.361369'E, 1030m, 05.05.2014, 1L; 20.07.2014, 2♀; 25.08.2014, 11L (leg. J. Le Doaré; JLDC); 26.04.2015, 1L; 01.08.2015, 4L 1E (leg. B. Launay; BLC).</p> <p> Forens river tributary, Chézery-Forens, 46° 13.389054'N, 5° 51.127375'E, 700m, 03.02.2014, 1L; 14.02.2014, 2L; 30.05.2014, 1♂, 1♀, 1E; 13.06.2015, 1E (leg. B. Launay; BLC).</p> <p> Septfontaine river at Mijoux, 46° 19.277761'N, 5° 57.467904'E, 950m, 03.07.2015, 1L; 01.08.2015, 1♂, 1♀; 05.09.2015, 3L; 02.04.2016, 1L (leg. B. Launay; BLC).</p> <p>Diagnosis. General color dark brown with tawny and yellow spots (Figs. 1, 2). Males and females macropterous (Figs. 1, 8). Apex of the frontal sclerite of the epiproct of adult males slightly bent downwards, in lateral view (Figs. 5, 6). Female subgenital plate covering half of the ninth sternum and exhibiting a deep median arch-shaped notch (Fig. 9). Body length of males 14–18 mm; females 15–23 mm. Anterior wings of males 15.9–17.6 mm; females 10–20.7 mm. Posterior</p> <p>wings of males 13.2–15.5 mm; females 13.9–20.5 mm.</p> <p>Adults (Figs. 1–9). Head mostly brown, with two large lateral yellow circular spots on both sides of the clypeus and a wide, symmetric, yellow patch on the M-line, above the anterior ocellus (Fig. 2). Between the lateral ocelli, a large, tawny area delimitated posteriorly by the epicranial suture. Area between the lateral ocelli and the compound eyes pale yellow (Fig. 2). Pronotum dark brown (Fig. 2). Anterior and posterior angles of pronotum almost rectangular (Fig. 2). Presence of a yellow median band extending from the anterior margin of the pronotum to its posterior margin, widened in its middle section and gradually narrowing toward the posterior margin of pronotum (Fig. 2). A tawny area on each side of the pronotum, with dark, sculpted rugosities (Fig. 2). Abdominal sterna pale brown, with symmetrical, hyphen-like patches. Proximal part of tibiae with a dark band. Antennae and cerci blackish to dark brown (Figs. 1, 4). Wing venation as typical for the genus (Ris 1896: 308, Fig. 3). Forewing (Fig. 8) and hindwing (cf. Fig. 31) with the two cross-veins “ra- rp” and “rp- ma” nearly aligned. Numerous cross- veins forming a reticulated area between RA and RP (Fig. 8). Cross-vein “ra- rp” and subcostal area of forewing faintly infuscate (Fig. 8).</p> <p>Male terminalia (Figs. 3–6). Presence of distinctly separated hemiterga (Figs. 3, 4) and an epiproct with a frontal apical sclerite ending in a single long spine and with two shorter dorso-lateral spines (Figs. 5, 6). Epiproct flanked by flat and spatulate lateral stylets (Figs. 5, 6). Tergum 10 divided into hemiterga whose lobes are covered with 20 to 25 pale long setae in which 2 to 9 darker, stronger and longer spines (half of the length of the hemitergal lobes) are embedded (Fig. 3). Hemitergal lobes long and slender, bent obliquely upwards (Fig. 3) and rearwards (Fig. 4). Apex of frontal sclerite of epiproct slightly bent downwards, in lateral view (Figs. 5 and 6). Lateral stylets large and clubshaped, widening near apex, in lateral view (Figs. 5 and 6). Abdominal sternum 7 composed of multiple plates (Fig. 7).</p> <p>Females (Fig. 9). Females of Dictyogenus not formally identifiable to species level, except those of D. alpinum, whose subgenital plate covers the majority of the sternum 9 (Figs. 60, 61). Female subgenital plate of D. jurassicum sp. n. covering half of the ninth sternum and exhibiting a deep median arch-shaped notch (Fig. 9).</p> <p>Mature larvae (Figs. 10–19). Larvae &lt;8 mm not identifiable to species-level. Immature larvae are characterized by a very dense setation on abdominal segments, legs, paragenital plates as well as cerci and live in interstitial habitats composed of loose sandy gravels. Mature larvae, on the contrary, are petricolous and this habitat shift also coincides with important chaetotactic changes, notably the reduction of length and number of setae on abdominal segments, paragenital plates and cerci.</p> <p>Length of mature larvae, measured from head to end of abdomen: 9–19 mm. First two abdominal segments with abdominal terga and sterna clearly separated by a small membranous area (Fig. 19). Interocellar area with a narrow yellow patch not reaching lateral ocelli (Figs. 10, 11). Lateral ocelli without circum-ocellar yellow patch (Figs. 10, 11). A narrow elongated yellow patch above each lateral ocellus (Figs. 10, 11). M-line indistinct (Figs. 10, 11). Occipital fold and lower rim of the eyes with a conspicuous row of spines (Fig. 11; cf. also Fig. 66). Lacinia with apical and subapical tooth; marginal setae of the lacinia in a single long row (Fig. 12). Lacinia, below subapical tooth, with a shoulder-like angle (Fig. 12; cf. also Fig. 64). Shape of pronotum ovoid (Fig. 11). Medio-dorsal setae on pronotum short and scattered, arranged as several, loosely demarcated rows (Fig. 13). Medio-dorsal row of setae long and continuous on mesonotum and metanotum (Fig. 14). Medio-dorsal row of setae on abdominal terga short and sparse (Fig. 15). Posterior margins of median abdominal terga with setae of unequal lengths (Fig. 18). Tip of paragenital plates blunt, in ventral view (Fig. 17). Paragenital plates, in ventral view, with at most two unpaired spines at or near apex; generally, there is only 1 spine on one of the paragenital plates while the other is devoid of spines (Fig. 17). Numerous empty spine insertion points on the paragenital plates, in ventral view (Fig. 17). Mediodorsal row of swimming-hairs of caudal setae sparse, with interruptions, and as long as or not much longer than the diameter of the cerci (Fig. 16). General aspect as in Fig. 10.</p> <p>Egg characteristics (Figs. 20–25). General shape oblong, cross-section trilateral, smoothed (Figs. 20–22). Posterior pole of egg regularly rounded; ridges only slightly protruding (Figs. 20–22). Chorionic surface with granulose follicle cell impressions (Fig. 23). Collar short, flared apically with few ridges of different length (fig. 24). Anchor flat (Fig. 25). Micropyles protruding and arranged singularly near posterior ⅓ of egg (Fig. 23). Eclosion line absent.</p> <p>Comparison to Congeners.</p> <p>Adults. In the adult male of Dictyogenus jurassicum sp. n., the hemitergal lobes are strongly bent upwards (Fig. 3) and rearwards (Fig. 4), whereas the hemitergal lobes of D. alpinum are only slightly bent upwards, pointing almost horizontally toward each other (Fig. 56). In the adult males of Dictyogenus jurassicum sp. n. (and also those of D. muranyii sp. n. and the specimens belonging to the D. fontium species complex), there is a wide, Vshaped membranous area between the hemitergal lobe and the inner anterior corner of the hemiterga (Figs. 3, 29, 32, 81). In the adult males of Dictyogenus alpinum, on the contrary, the area between the hemitergal lobe and the inner anterior corner of the hemiterga is globulous and sclerotized (Fig. 56). In Dictyogenus jurassicum sp. n., the lateral stylets are enlarged apically (Fig. 5), whereas they are getting progressively thinner toward the apex in D. alpinum (Fig. 57). In the female of Dictyogenus jurassicum sp. n., the subgenital plate (Fig. 9) covers at most the upper half of abdominal sternum 9, as is also the case for specimens of the D. fontium species complex (Figs. 83, 84), whereas the subgenital plate of D. alpinum covers ¾ of the sternum 9 (Figs. 60, 61). Adult females of Dictyogenus jurassicum sp. n. hence have more affinities with those of the D. fontium species complex than with those of D. alpinum, whereas adult males of Dictyogenus jurassicum sp. n. are closer to those of D. alpinum than to those of the D. fontium species complex, from which they differ by the much stronger curvature of the apex of the frontal epiproct sclerite in lateral view (Figs. 5, 6, 57 compared to Fig. 80).</p> <p>Mature larvae. Dictyogenus jurassicum sp. n. differs from D. fontium by the presence of medio-dorsal setae on the pronotum (Fig. 13 compared to Fig. 86). Medio-dorsal setae on pronotum of Dictyogenus jurassicum sp. n. are short and scattered, arranged as two loosely demarcated rows (Fig. 13), whereas they are longer, but uncompacted, in D. muranyii sp. n. (Figs. 40, 41), and dense and long in D. alpinum (Fig. 71).</p> <p>Distribution and ecology. Dictyogenus jurassicum sp. n. is the only species of Dictyogenus present in the Jura Mountains of France and Switzerland (Fig. 92) and is distributed over all its different drainage basins. The occurrence of Dictyogenus jurassicum sp. n. is, however, restricted to karstic springs (some of them intermittent) and the initial section of their outflows in the Jura Mountains of France and Switzerland (Fig. 26). The flight period of D. jurassicum sp. n. extends from spring to early summer. Adults of both sexes emerge from the middle of April until the beginning of July. The life cycle is unknown. Our observations in the field are compatible with a semivoltine cycle, since immature larvae (3-4 mm) were generally found together with pre-emergent larvae in spring, at the end of the emergence period of adults. Half-grown larvae (6-8 mm) are present in autumn and in winter. Thus, larval growth of Dictyogenus jurassicum sp. n. extends over a period of at least two years. A possible egg diapause, as documented for a population of Dictyogenus fontium by Zwick &amp; Zwick 2010, would extend its life cycle to three years.</p> <p>Etymology of Dictyogenus jurassicum sp. n. The new species is named after the region where it was collected, the Jura Mountains of France and Switzerland.</p> </p> <p> Dénériaz torrent, Noirvaux, 46° 51.228685'N, 6° 30.969797'E, 1000 m, 31.03.2005, 6L (leg. J.-P.G. Reding; RC); 13.08.2017, 1L, (leg. J. Le Doaré; JLDC).</p> <p> Small spring, Poëta Raisse gorges, 46° 52.910488'N, 6° 36.307303'E, 1131m, 18.07.1997, 1E; 03.08.2011, 2L; 23.06.2012, 2L (leg. J.-P.G. Reding; RC). Orbe River Basin, canton of Vaud, Rhine tributaries:</p> <p> Karstic spring Les Fontannets, La Mothe, 46° 49.165452'N, 6° 33.889242'E, 548m, 09.05.2014, 1L (leg. J.-P.G. Reding; MZL under catalogue number GBIFCH00284213, used for molecular studies by SwissBOL). Doubs Valley, canton of Jura, Rhône tributaries:</p> <p> Karstic spring of Côte au Bouvier, near Soubey, 47° 18.028074'N, 7° 3.595063'E, 570m, 26.05.1997, 1♂, 2♀, 1E; 05.05.2009, 3♂; 16.06.2009, 2♂, 10♀, 2E; 20.06.2012, 4♀, 4E (leg. G. Vinçon; GVC); 12.06.2007, 3♂, 1E; 24.06.2007, 1♂, 1E (leg. R. Rupprecht; GVC); 29.05.2010, 5L (used for molecular studies by A. Reding); 14.07.2010, 1L (leg. A. Reding; RC); 20.09.2010, 11L; 23.09.2014, 2L (leg. J.-P.G. Reding; RC). Canton of Jura, Rhine tributaries:</p> <p> Karstic spring near river Sorne, Blanches- Fontaines, 47° 17.338724'N, 7° 13.36608'E, 585m, 10.03.2015, 1L (leg. J.-P.G. Reding; MZL under catalogue number GBIFCH00284212, used for molecular studies by SwissBOL); 06.04.2017, 1L (leg. J.-P.G. Reding; RC). FRANCE Jura Mountains Doubs Department (25) Doubs drainage basin, Rhône tributaries:  Spring of Doubs River, Mouthe, 46° 42.295779'N, 6° 12.548421'E, 946m, 18.04.1991, 2L; 15.09.1991, 1E (leg. J. Aubert; GVC); 14.07.1996, 1♀, 7E (leg. G. Vinçon; GVC); 13.06.2007, 1L (used for molecular studies by A. Reding); 10.05.2017, 1L (leg. J.-P.G. Reding; RC). Loue drainage basin, Rhône tributaries:</p> <p> Spring of Loue River, Ouhans, 47° 0.645115'N, 6° 17.97486'E, 529m, 10.04.2013, 1L (leg. J.-P.G. Reding; RC).</p> <p> Spring of Moulin Miguet, Nouailles Gorges, Ouhans, 47° 1.326046'N, 6° 17.934465'E, 456m, 14.05.2013, 1L; 01.04.2014, 5L; 14.04.2015, 2L (leg. J.-P.G. Reding; RC). Ain (01) and Jura (39) Departments, Ain drainage basin, Rhône tributaries:</p> <p> Karstic spring near Albarine river, Charabotte Mill (01), 45° 57.308924'N, 5° 33.286347'E, 476m, 09.06.2013, 2♂, 3♀ (leg B. Launay; JLDC); 15.06.2013, 3♀; 16.02.2014, 2L; 06.05.2014, 1♂, 3♀, 1E (leg. B. Launay; RC); 13.05. 2015, 4m, 1L, 2E (leg. B. Launay; BLC; used for molecular studies by IRSTEA, numbers B116 and B117).</p> <p> Valouse river near Cornod (39), bridge over road D 202, 46° 18.536086'N, 5° 32.227764'E, 310m, 12.09.2007, 1L (leg. J. Le Doaré; JLDC).</p> <p> Spring of Flumen river, near Les Moulins, Septmoncel (39), 46° 21.204252'N, 5° 54.395038'E, 800m, 24.07.2007, 9L; 28.04.2011, 1L (leg. J. Le Doaré; JLDC).</p> <p> Spring of Ravin de la Gaillarde, Tenay (01), 45° 56,078220'N, 5° 32,239020'E, 651m, 13.04.2018, 1L (leg. B. Launay; BLC). Ain Department (01), Valserine drainage basin, Rhône tributaries:</p> <p> Karstic spring at Creux-Godet, 46° 16.114284'N, 5° 54.894414'E, 879m, 13.04.1991, 1L (leg. J. Aubert; GVC); 17.03.2014, 2L; 30.05.2014, 1E (leg. B. Launay; BLC); 25.08.2014, 8L (leg. J. Le Doaré; JLDC).</p> <p> Brion waterfall, near Chézery-Forens, 46° 15.311212'N, 5° 54.032052'E, 810m, 03.02.2014, 3L; 14.02.2014, 3L; 17.03.2014, 24L (leg. B. Launay; BLC; 2L in RC); 04.05.2014, 3L; 30.05.2014, 2♂, 2E; 19.07.2014, 1♀, 1E; 22.12.2014, 2L; 11.04.2015, 1L; 22.05.2015, 2L; 13.06.2015, 2♂, 1♀, 1E; 08.06.2016, 1♀ (leg. B. Launay; BLC); 27.01.2015, 3L (leg. J.-P.G. Reding; RC).</p> <p> Karstic spring near Perissode farm, 46° 22.128147'N, 6° 0.361369'E, 1030m, 05.05.2014, 1L; 20.07.2014, 2♀; 25.08.2014, 11L (leg. J. Le Doaré; JLDC); 26.04.2015, 1L; 01.08.2015, 4L 1E (leg. B. Launay; BLC).</p> <p> Forens river tributary, Chézery-Forens, 46° 13.389054'N, 5° 51.127375'E, 700m, 03.02.2014, 1L; 14.02.2014, 2L; 30.05.2014, 1♂, 1♀, 1E; 13.06.2015, 1E (leg. B. Launay; BLC).</p> <p> Septfontaine river at Mijoux, 46° 19.277761'N, 5° 57.467904'E, 950m, 03.07.2015, 1L; 01.08.2015, 1♂, 1♀; 05.09.2015, 3L; 02.04.2016, 1L (leg. B. Launay; BLC).</p> <p>Diagnosis. General color dark brown with tawny and yellow spots (Figs. 1, 2). Males and females macropterous (Figs. 1, 8). Apex of the frontal sclerite of the epiproct of adult males slightly bent downwards, in lateral view (Figs. 5, 6). Female subgenital plate covering half of the ninth sternum and exhibiting a deep median arch-shaped notch (Fig. 9). Body length of males 14–18 mm; females 15–23 mm. Anterior wings of males 15.9–17.6 mm; females 10–20.7 mm. Posterior</p> <p>wings of males 13.2–15.5 mm; females 13.9–20.5 mm.</p> <p>Adults (Figs. 1–9). Head mostly brown, with two large lateral yellow circular spots on both sides of the clypeus and a wide, symmetric, yellow patch on the M-line, above the anterior ocellus (Fig. 2). Between the lateral ocelli, a large, tawny area delimitated posteriorly by the epicranial suture. Area between the lateral ocelli and the compound eyes pale yellow (Fig. 2). Pronotum dark brown (Fig. 2). Anterior and posterior angles of pronotum almost rectangular (Fig. 2). Presence of a yellow median band extending from the anterior margin of the pronotum to its posterior margin, widened in its middle section and gradually narrowing toward the posterior margin of pronotum (Fig. 2). A tawny area on each side of the pronotum, with dark, sculpted rugosities (Fig. 2). Abdominal sterna pale brown, with symmetrical, hyphen-like patches. Proximal part of tibiae with a dark band. Antennae and cerci blackish to dark brown (Figs. 1, 4). Wing venation as typical for the genus (Ris 1896: 308, Fig. 3). Forewing (Fig. 8) and hindwing (cf. Fig. 31) with the two cross-veins “ra- rp” and “rp- ma” nearly aligned. Numerous cross- veins forming a reticulated area between RA and RP (Fig. 8). Cross-vein “ra- rp” and subcostal area of forewing faintly infuscate (Fig. 8).</p> <p>Male terminalia (Figs. 3–6). Presence of distinctly separated hemiterga (Figs. 3, 4) and an epiproct with a frontal apical sclerite ending in a single long spine and with two shorter dorso-lateral spines (Figs. 5, 6). Epiproct flanked by flat and spatulate lateral stylets (Figs. 5, 6). Tergum 10 divided into hemiterga whose lobes are covered with 20 to 25 pale long setae in which 2 to 9 darker, stronger and longer spines (half of the length of the hemitergal lobes) are embedded (Fig. 3). Hemitergal lobes long and slender, bent obliquely upwards (Fig. 3) and rearwards (Fig. 4). Apex of frontal sclerite of epiproct slightly bent downwards, in lateral view (Figs. 5 and 6). Lateral stylets large and clubshaped, widening near apex, in lateral view (Figs. 5 and 6). Abdominal sternum 7 composed of multiple plates (Fig. 7).</p> <p>Females (Fig. 9). Females of Dictyogenus not formally identifiable to species level, except those of D. alpinum, whose subgenital plate covers the majority of the sternum 9 (Figs. 60, 61). Female subgenital plate of D. jurassicum sp. n. covering half of the ninth sternum and exhibiting a deep median arch-shaped notch (Fig. 9).</p> <p>Mature larvae (Figs. 10–19). Larvae &lt;8 mm not identifiable to species-level. Immature larvae are characterized by a very dense setation on abdominal segments, legs, paragenital plates as well as cerci and live in interstitial habitats composed of loose sandy gravels. Mature larvae, on the contrary, are petricolous and this habitat shift also coincides with important chaetotactic changes, notably the reduction of length and number of setae on abdominal segments, paragenital plates and cerci.</p> <p>Length of mature larvae, measured from head to end of abdomen: 9–19 mm. First two abdominal segments with abdominal terga and sterna clearly separated by a small membranous area (Fig. 19). Interocellar area with a narrow yellow patch not reaching lateral ocelli (Figs. 10, 11). Lateral ocelli without circum-ocellar yellow patch (Figs. 10, 11). A narrow elongated yellow patch above each lateral ocellus (Figs. 10, 11). M-line indistinct (Figs. 10, 11). Occipital fold and lower rim of the eyes with a conspicuous row of spines (Fig. 11; cf. also Fig. 66). Lacinia with apical and subapical tooth; marginal setae of the lacinia in a single long row (Fig. 12). Lacinia, below subapical tooth, with a shoulder-like angle (Fig. 12; cf. also Fig. 64). Shape of pronotum ovoid (Fig. 11). Medio-dorsal setae on pronotum short and scattered, arranged as several, loosely demarcated rows (Fig. 13). Medio-dorsal row of setae long and continuous on mesonotum and metanotum (Fig. 14). Medio-dorsal row of setae on abdominal terga short and sparse (Fig. 15). Posterior margins of median abdominal terga with setae of unequal lengths (Fig. 18). Tip of paragenital plates blunt, in ventral view (Fig. 17). Paragenital plates, in ventral view, with at most two unpaired spines at or near apex; generally, there is only 1 spine on one of the paragenital plates while the other is devoid of spines (Fig. 17). Numerous empty spine insertion points on the paragenital plates, in ventral view (Fig. 17). Mediodorsal row of swimming-hairs of caudal setae sparse, with interruptions, and as long as or not much longer than the diameter of the cerci (Fig. 16). General aspect as in Fig. 10.</p> <p>Egg characteristics (Figs. 20–25). General shape oblong, cross-section trilateral, smoothed (Figs. 20–22). Posterior pole of egg regularly rounded; ridges only slightly protruding (Figs. 20–22). Chorionic surface with granulose follicle cell impressions (Fig. 23). Collar short, flared apically with few ridges of different length (fig. 24). Anchor flat (Fig. 25). Micropyles protruding and arranged singularly near posterior ⅓ of egg (Fig. 23). Eclosion line absent.</p> <p>Comparison to Congeners.</p> <p>Adults. In the adult male of Dictyogenus jurassicum sp. n., the hemitergal lobes are strongly bent upwards (Fig. 3) and rearwards (Fig. 4), whereas the hemitergal lobes of D. alpinum are only slightly bent upwards, pointing almost horizontally toward each other (Fig. 56). In the adult males of Dictyogenus jurassicum sp. n. (and also those of D. muranyii sp. n. and the specimens belonging to the D. fontium species complex), there is a wide, Vshaped membranous area between the hemitergal lobe and the inner anterior corner of the hemiterga (Figs. 3, 29, 32, 81). In the adult males of Dictyogenus alpinum, on the contrary, the area between the hemitergal lobe and the inner anterior corner of the hemiterga is globulous and sclerotized (Fig. 56). In Dictyogenus jurassicum sp. n., the lateral stylets are enlarged apically (Fig. 5), whereas they are getting progressively thinner toward the apex in D. alpinum (Fig. 57). In the female of Dictyogenus jurassicum sp. n., the subgenital plate (Fig. 9) covers at most the upper half of abdominal sternum 9, as is also the case for specimens of the D. fontium species complex (Figs. 83, 84), whereas the subgenital plate of D. alpinum covers ¾ of the sternum 9 (Figs. 60, 61). Adult females of Dictyogenus jurassicum sp. n. hence have more affinities with those of the D. fontium species complex than with those of D. alpinum, whereas adult males of Dictyogenus jurassicum sp. n. are closer to those of D. alpinum than to those of the D. fontium species complex, from which they differ by the much stronger curvature of the apex of the frontal epiproct sclerite in lateral view (Figs. 5, 6, 57 compared to Fig. 80).</p> <p>Mature larvae. Dictyogenus jurassicum sp. n. differs from D. fontium by the presence of medio-dorsal setae on the pronotum (Fig. 13 compared to Fig. 86). Medio-dorsal setae on pronotum of Dictyogenus jurassicum sp. n. are short and scattered, arranged as two loosely demarcated rows (Fig. 13), whereas they are longer, but uncompacted, in D. muranyii sp. n. (Figs. 40, 41), and dense and long in D. alpinum (Fig. 71).</p> <p>Distribution and ecology. Dictyogenus jurassicum sp. n. is the only species of Dictyogenus present in the Jura Mountains of France and Switzerland (Fig. 92) and is distributed over all its different drainage basins. The occurrence of Dictyogenus jurassicum sp. n. is, however, restricted to karstic springs (some of them intermittent) and the initial section of their outflows in the Jura Mountains of France and Switzerland (Fig. 26). The flight period of D. jurassicum sp. n. extends from spring to early summer. Adults of both sexes emerge from the middle of April until the beginning of July. The life cycle is unknown. Our observations in the field are compatible with a semivoltine cycle, since immature larvae (3-4 mm) were generally found together with pre-emergent larvae in spring, at the end of the emergence period of adults. Half-grown larvae (6-8 mm) are present in autumn and in winter. Thus, larval growth of Dictyogenus jurassicum sp. n. extends over a period of at least two years. A possible egg diapause, as documented for a population of Dictyogenus fontium by Zwick &amp; Zwick 2010, would extend its life cycle to three years.</p> <p>Etymology of Dictyogenus jurassicum sp. n. The new species is named after the region where it was collected, the Jura Mountains of France and Switzerland.</p> </div>	https://treatment.plazi.org/id/352C87AB0064FFC4F595F8F85B147BB1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Reding, Jean-Paul G.;Launay, Bertrand;Doaré, Jacques Le;Ruffoni, Alexandre;Vinçon, Gilles	Reding, Jean-Paul G., Launay, Bertrand, Doaré, Jacques Le, Ruffoni, Alexandre, Vinçon, Gilles (2019): Two New Species Of Dictyogenus Klapálek, 1904 (Plecoptera: Perlodidae) From The Jura Mountains Of France And Switzerland, And From The French Vercors And Chartreuse Massifs. Illiesia 15 (2): 27-64, DOI: http://doi.org/10.5281/zenodo.4761285
352C87AB006DFFDFF5A3F8C158FD7B43.text	352C87AB006DFFDFF5A3F8C158FD7B43.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Dictyogenus muranyii Vincon, Launay, Le Doare, Ruffoni & Reding 2019	<div><p>Dictyogenus muranyii Vinçon, Launay, Le Doaré, Ruffoni &amp; Reding, sp. n.</p> <p>http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org: TaxonName:506376 (Figs. 27–51)</p> <p>Dictyogenus fontium – Despax, R. (1940). Bulletin de la Société d’Histoire Naturelle de Toulouse, 75:296.</p> <p>Dictyogenus fontium – Vinçon, G. (1996). Bulletin de la Société Entomologique Suisse, 69:72.</p> <p>Dictyogenus fontium gr sp 3-GV sensu Gilles Vinçon (early-release DNA sequence on: www.boldsystems.org, unpublished)</p> <p>Materials examined. Holotype male: FRANCE, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.6174893&amp;materialsCitation.latitude=45.146637" title="Search Plazi for locations around (long 5.6174893/lat 45.146637)">Vercors Massif</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.6174893&amp;materialsCitation.latitude=45.146637" title="Search Plazi for locations around (long 5.6174893/lat 45.146637)">Isère</a> department (38), <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.6174893&amp;materialsCitation.latitude=45.146637" title="Search Plazi for locations around (long 5.6174893/lat 45.146637)">Karstic Spring of Bruyant</a> river, above Engins, Lans-en- Vercors (38250), 45° 8.798123'N, 5° 37.049358'E, 982m a.s.l., 09.06.2017, leg. G. Vinçon, deposited in the MZL (catalogue number: GBIFCH00652534). Paratypes: same locality, same date, 3♂, 1♀, leg. G. Vinçon, deposited in the MZL (catalogue number: GBIFCH00652525, GBIFCH00652519); same locality, same date, 3L, leg. J.-P.G. Reding, deposited in the MZL (catalogue number: GBIFCH00652514).</p> <p>Additional specimens. We examined many other specimens. These are stored in the collections of Bertrand Launay (BLC), Gilles Vinçon (GVC), Jean-Paul G. Reding (RC), Dávid Murányi (MC),</p> <p>Jacques Le Doaré (JLDC), Alexandre Ruffoni (ARC) and MZL.</p> <p>FRANCE</p> <p>Vercors Massif</p> <p>Drôme department (26):</p> <p> Archiane torrent, Drôme tributary, NE Châtillon-en-Diois, Menée, Cirque d’Archiane, 44° 44.770828'N, 5° 30.214097'E, 760m, 31.07.1990, 1♂; 16.09.1990, 2♀ (leg. G. Vinçon; GVC).</p> <p> <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.3209577&amp;materialsCitation.latitude=44.927914" title="Search Plazi for locations around (long 5.3209577/lat 44.927914)">Spring</a> at <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.3209577&amp;materialsCitation.latitude=44.927914" title="Search Plazi for locations around (long 5.3209577/lat 44.927914)">Brudour cave</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.3209577&amp;materialsCitation.latitude=44.927914" title="Search Plazi for locations around (long 5.3209577/lat 44.927914)">Brudour River</a>, Bourne tributary, Bouvante (26190), 44° 55.67493'N, 5° 19.257459'E, 1182m, 13.04.2016, 3L; 02.06.2016, 2♂, 2♀, 1L, 7E (leg. B. Launay; BLC; used for molecular studies by IRSTEA, numbers B079 and B080); 21.05.2017, 1E (leg. G. Vinçon; GVC); 09.06.2017, 9E (leg. J.-P.G. Reding; RC).</p> <p> <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.459173&amp;materialsCitation.latitude=45.002014" title="Search Plazi for locations around (long 5.459173/lat 45.002014)">Adouin river</a>, near its spring, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.459173&amp;materialsCitation.latitude=45.002014" title="Search Plazi for locations around (long 5.459173/lat 45.002014)">Vernaison</a> and <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.459173&amp;materialsCitation.latitude=45.002014" title="Search Plazi for locations around (long 5.459173/lat 45.002014)">Bourne</a> tributary, Tourtre, Saint-Martin-en- Vercors (26420), 45° 0.120928'N, 5° 27.550379'E, 793m, 21.05.2017, 1♂, 1♀ (leg. G. Vinçon, GVC); 09.06.2017, 11♀, 1E (leg. G. Vinçon; RC; 1♀ used for molecular studies by SwissBOL, MZL, catalogue number GBIFCH00280854); 2♂, 17♀ (leg. G. Vinçon; GVC).</p> <p> <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.345883&amp;materialsCitation.latitude=44.997665" title="Search Plazi for locations around (long 5.345883/lat 44.997665)">Cholet river</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.345883&amp;materialsCitation.latitude=44.997665" title="Search Plazi for locations around (long 5.345883/lat 44.997665)">Lyonne</a> and Bourne tributary, Combe Laval, Saint-Laurent-en-Royans (26190), 44° 59.859883'N, 5° 20.75296'E, 355m, 21.05.2017, 2♂, 6E (leg. G. Vinçon; GVC).</p> <p>Isère department (38):</p> <p> Bruyant river, Furon and Isère tributary, above Engins, Lans-en-Vercors (38250), 45° 8.798123'N, 5° 37.049358'E, 982m, 06.10.1991, 1E; 25.06.1995, 7♂, 4♀; 10.05.1998, 1♂; 10.06.2007, 1♂; 22.06.2008, 1♂; 22.06.2009, 32♂, 6♀ (1♂ used for molecular studies by A. Reding); 07.07.2012, 7♂, 2♀, 1L (leg. G. Vinçon; GVC); 07.06.2015, 3♂, 2♀, 6L, 5E (leg. B. Launay; BLC); 09.06.2017, 2♂, 1♀, 17E (leg. G. Vinçon; GVC); 7♂, 1♀, 7L, 3E (leg. J.-P.G. Reding; RC; 1♂ used for molecular studies by SwissBOL, MZL, catalogue number GBIFCH00280811).</p> <p> <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.651303&amp;materialsCitation.latitude=45.208603" title="Search Plazi for locations around (long 5.651303/lat 45.208603)">Cuves de Sassenage</a> strong rheocrene spring, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.651303&amp;materialsCitation.latitude=45.208603" title="Search Plazi for locations around (long 5.651303/lat 45.208603)">Germe</a> brook, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.651303&amp;materialsCitation.latitude=45.208603" title="Search Plazi for locations around (long 5.651303/lat 45.208603)">Furon</a> and Isère tributary, Sassenage (38474), 45° 12.516243'N, 5° 39.078175'E, 330m, 15.06.1991, 1♂, 2♀ strongly brachypterous (leg. G. Vinçon; MC).</p> <p> Drevenne river, Isère tributary, Pont Chabert, Saint-Gervais (38470), 45° 10.643943'N, 5° 29.885486'E, 885m, 15.06.1991, 1L (leg. G. Vinçon; GVC); 31.05.2012, 2♂; 17.07.2012, 2L; 11.07.2015, 3L (leg. J. Le Doaré; JLDC); 06.06.2015, 1E (leg. B. Launay; BLC).</p> <p> <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.5661826&amp;materialsCitation.latitude=45.074543" title="Search Plazi for locations around (long 5.5661826/lat 45.074543)">Font Noire river</a>, Bourne tributary, Villard-de- Lans (38250), 45° 4.472474'N, 5° 33.970966'E, 1010m, 01.06.2016, 1♂, 1E (leg. B. Launay; BLC; used for molecular studies by IRSTEA, number B120).</p> <p> <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.577735&amp;materialsCitation.latitude=45.05623" title="Search Plazi for locations around (long 5.577735/lat 45.05623)">Fauge river</a>, Bourne tributary, Villard-de-Lans (38250), 45° 3.373805'N, 5° 34.664105'E, 1230m, 01.06.2016, 1E (leg. B. Launay; BLC).</p> <p> <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=5.6036873&amp;materialsCitation.latitude=45.105076" title="Search Plazi for locations around (long 5.6036873/lat 45.105076)">Spring of Furon</a> river, Lans-en-Vercors (38250), 45° 6.304551'N, 5° 36.221224'E, 1294m, 12.07.2015, 6L (leg. J. Le Doaré; JLDC).</p> <p>Chartreuse Massif</p> <p>Isère (38) and Savoie (73) departments:</p> <p> Sarcenas river at Sarcenas, Isère tributary, (38700), 45° 16.829887'N, 5° 45.251584'E, 1093m, 20.04.1986, 5L; 01.06.1986, 4L; 05.10.1986, 1♂ (leg. G. Vinçon; GVC).</p> <p> Spring of Guiers-Vif river, Rhône tributary, Cirque de Saint-Même, Saint-Pierre-D’Entremont (73670), 45° 23.491629'N, 5° 53.464859'E, 1050m, 21.06.1992, 3♀; 12.09.1992, 4♀, 1E; 21.06.1992, 3♀ (leg. G. Vinçon; GVC).</p> <p> Karstic spring of Guiers Mort, Rhône tributary, Saint-Pierre-de-Chartreuse (38380), 45° 19.571976'N, 5° 51.452039'E, 1360m, 11.09.1938, stage and numbers not specified (leg. Ms. Daudin, fide Despax 1940).</p> <p>Diagnosis. General color dark brown with tawny and yellow spots (Figs. 27, 28). Males and females macropterous; only two females were found strongly brachypterous. Apex of the frontal sclerite of the epiproct of adult males very slightly turned downwards, in lateral view (Fig. 33). Female subgenital plate covering half of the abdominal sternum 9 (Fig. 36). Body length of males 17.2 to 20.9 mm; females 18 to 23.6 mm. Anterior wings of males 15 to 19.3 mm; females 17.7 to 21.5 mm. Posterior wings of males 12.5 to 15.8 mm; females 15.3 to 17.4 mm.</p> <p>Adults (Figs. 27–36). Upper side of the head brown, with large yellow spots (Fig. 28). M-line yellow, not interrupted in its middle (Fig. 28). Between the lateral ocelli, a large, ovoid, yellow area delimitated posteriorly by the epicranial suture (Fig. 28). Presence of a large, yellow, median band extending from the anterior margin of the pronotum to its posterior margin (Fig. 28). Band slightly constricted in the middle and then steadily widening toward the posterior margin (Fig. 28). A tawny area on each side of the pronotum, with dark, sculpted rugosities (Fig. 28). Anterior and posterior angles of pronotum almost rectangular (Fig. 28). Abdominal sterna 1 to 6 pale yellow, with two dark patches. Antennae dark brown; cerci light brown with basal part pale yellow (Figs. 29, 30). Wing venation as typical for the genus (Fig. 31; cf. Fig. 8). Forewing with the two cross-veins “ra- rp” and “rp- ma”</p> <p>nearly aligned (like in Fig. 8). Numerous crossveins forming a reticulated area between RA and RP (Fig. 31; cf. Fig. 8). Cross-vein “ra- rp” and subcostal area faintly infuscate (as in Fig. 8).</p> <p>Male terminalia (Figs. 29, 30, 32–35). Epiproct flanked by flat and spatulate lateral stylets (Figs. 33, 34). Abdominal tergum 10 divided into hemiterga whose lobes are covered with a bunch of 20 to 25 long setae in which 3 to 6 stronger and longer spines (half of the length of the hemitergal lobes) are embedded (Figs. 29, 32). Hemitergal lobes bulb-shaped with a slight distal knob (Fig. 30), both pointing rearwards (Fig. 30) and almost horizontally toward each other (Figs. 29, 32). Apex of frontal sclerite of epiproct slightly turned downwards, in lateral view (Fig. 33). Lateral stylets long, only slightly enlarged at apex, in lateral view (Figs. 33, 34). Abdominal sternum 7 composed of multiple plates (as in Figs. 7, 59, 82).</p> <p>Females (Fig. 36). Females not formally identifiable to species level. Female subgenital plate (Fig. 36) covering at most half of sternum 9. Its general shape is semi-circular with a shallow Vshaped median notch.</p> <p>Mature larvae (Figs. 37–45). Interocellar area with a narrow yellow patch nearly reaching lateral ocelli (Figs. 37–39). Lateral ocelli with small lateral circum-ocellar yellow patch (Fig. 38). A large, elliptical yellow patch above each lateral ocellus (Figs. 37–39). M-line well visible only in its medial, crescent-shaped, section (Figs. 37–39). Pronotum wider than long (Figs. 38, 39). Medio-dorsal setae on pronotum long, but not compacted, sometimes covering only the posterior half of the pronotum (Figs. 40, 41). Medio-dorsal row of setae present on mesonotum and metanotum (Fig. 40). Abdominal terga with a row of short and sparse medio-dorsal setae (Fig. 42). Paragenital plates, in ventral view, without spines, or with only 1 spine on one of the paragenital plates, but with numerous empty spine insertion points (Fig. 44). Medio-dorsal row of swimming-hairs of caudal setae sparse, slightly longer than the diameter of the cerci (Fig. 43). General aspect as in Fig. 37.</p> <p>Egg characteristics (Figs. 46–51). General shape triangular or trilateral in cross section. Posterior pole of egg regularly rounded; ridges protruding (Figs. 46, 47). Chorionic surface spring of Brudour, Drôme dpt, France. Photo B. Launay. 43. Medio-dorsal setae on cerci. Karstic spring of Brudour, Drôme dpt, France. Photo A. Ruffoni. 44. Paragenital plates, ventral view. Karstic spring of Brudour, Drôme dpt, France. Photo B. Launay. 45. Stipe. Karstic spring of Brudour, Drôme dpt, France. Photo B. Launay.</p> <p>with polygonal follicle cell impressions (Figs. 48, 50, 51). Anchor papillate, donut shaped apically with central depression (Figs. 48, 49). Micropyles not protruding and arranged regularly in a line in the middle of the egg (Figs. 47, 50). Eclosion line absent (Figs. 46, 47).</p> <p>Comparison to Congeners.</p> <p>Adults. In the adult male of Dictyogenus muranyii sp. n., a wide, V-shaped membranous area between the hemitergal lobe and the inner anterior corner of the hemitergum is present (Figs. 29, 32), whereas this area is sclerotized and much narrower in D. alpinum (Fig. 56). The lateral stylets in D. muranyii sp. n. are slightly enlarged apically (Figs. 33, 34), intermediate in form between those of D. alpinum (Fig. 57) and those of the D. fontium species complex (Fig. 80). In the adult female of D. muranyii sp. n., the subgenital plate (Fig. 36) covers at most the upper half of sternum 9, as is also the case for specimens of the D. fontium species complex (Figs. 83, 84), whereas the subgenital plate of D. alpinum covers ¾ of sternum 9 (Figs. 60, 61). The anterior and posterior angles of the pronotum of Dictyogenus muranyii sp. n., D. jurassicum sp. n. and D. fontium are almost rectangular (Figs. 2, 28, 79), whereas those of D. alpinum are rounded (Fig. 54). Adult males and females of Dictyogenus muranyii sp. n. hence have more affinities with those of the D. fontium species complex than with those of D. alpinum.</p> <p>Mature larvae. Dictyogenus muranyii sp. n. differs from D. fontium by the presence of medio-dorsal setae on the pronotum (Fig. 41 compared to Fig. 86). Medio-dorsal setae on pronotum are long and sparse in D. muranyii sp. n. (Figs. 40, 41), whereas they are long and dense in D. alpinum (Fig. 71), and short and scattered, arranged as two loosely demarcated rows in D. jurassicum sp. n. (Fig. 13).</p> <p>Distribution and ecology. Dictyogenus muranyii sp. n. inhabits karstic springs (some of them intermittent; Fig. 52) in the French Vercors and Chartreuse massifs (Fig. 92). The localities occurring on the south western part of the Vercors Massif belong to the Drôme watershed (main Rhône tributary); those occurring on the northern and eastern part of the Vercors Massif, and on the southern part of the Chartreuse Massif belong to the Isère watershed (main Rhône tributary), and those occurring on the western</p> <p>part of the Chartreuse Massif belong to the Guiers watershed (Rhône tributary). The life cycle of Dictyogenus muranyii sp. n. is probably similar to the one of D. jurassicum sp. n. The main emergence period of adults is in May and June, although isolated specimens occur until September. We have noted on one occasion a spectacular upstream flight of females in mid-June on the river Adouin (Fig. 53). Some of the females were ovipositing under large stones right at the spring head. Mature larvae emerge preferentially on small islets located in the middle of the river.</p> <p>Etymology of Dictyogenus muranyii sp. n. This species is dedicated to Dr. Dávid Murányi, Hungarian Natural History Museum, Budapest, Hungary, in recognition of his outstanding contributions to the plecopteran taxonomy.</p> </div>	https://treatment.plazi.org/id/352C87AB006DFFDFF5A3F8C158FD7B43	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Reding, Jean-Paul G.;Launay, Bertrand;Doaré, Jacques Le;Ruffoni, Alexandre;Vinçon, Gilles	Reding, Jean-Paul G., Launay, Bertrand, Doaré, Jacques Le, Ruffoni, Alexandre, Vinçon, Gilles (2019): Two New Species Of Dictyogenus Klapálek, 1904 (Plecoptera: Perlodidae) From The Jura Mountains Of France And Switzerland, And From The French Vercors And Chartreuse Massifs. Illiesia 15 (2): 27-64, DOI: http://doi.org/10.5281/zenodo.4761285
352C87AB0076FFD1F5F6F99059437FB1.text	352C87AB0076FFD1F5F6F99059437FB1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Dictyogenus Klapalek 1904	<div><p>Morphological key to adults of Dictyogenus</p> <p>1 Females..……………………………………….. 2</p> <p>1’ Males ………………………..………………….. 3</p> <p>2 Subgenital plate covering majority of sternum 9 (Figs. 60, 61). Macropterous (Fig. 61) ……………………..……. Dictyogenus alpinum</p> <p>2’ Subgenital plate covering at most the anterior half of sternum 9 (Figs. 9, 36, 83, 84). Macropterous or more rarely brachypterous (Fig. 78) …………… Dictyogenus jurassicum, D. muranyii, D. fontium species complex (not keyed)</p> <p>3 Hemitergal lobes separated from the inner anterior corner of each hemitergum by a wide V-shaped membranous area (Figs. 3, 29, 32, 81). Apex of frontal epiproct sclerite nearly straight in lateral view, “dagger-like” (Figs. 5, 6, 33, 80). Lateral stylets apically enlarged (Figs. 5, 6, 33, 34, 80) ………………………….. 4</p> <p>3’ Hemitergal lobes separated from the inner anterior corner of each hemitergum by a narrow V-shaped sclerotized area (Fig. 56). Hemitergal lobes wide and bulky, hardly bent upwards, pointing almost horizontally toward each other (Fig. 56). Apex of frontal epiproct sclerite with a strong curvature in lateral view, “claw-like” (Fig. 57). Epiproct sides straight, in dorso-caudal view (Fig. 58). Lateral stylets thinning progressively toward apex (Fig. 57) ………….. Dictyogenus alpinum</p> <p>4 Hemitergal lobes strongly bent upwards (Figs. 3, 81) …………………………………………… 5</p> <p>4’ Hemitergal lobes hardly bent upwards, slender, bulb-shaped with a slight distal knob (Fig. 30). Apex of frontal epiproct sclerite straight and with a median curvature, in lateral view (Fig. 33). Epiproct sides rounded, in dorso-caudal view (Fig. 35). Lateral stylets not getting thinner progressively toward apex (Figs. 33, 34) ………….. Dictyogenus muranyii</p> <p>5 Apex of frontal epiproct sclerite straight and with a median curvature, in lateral view (Figs. 5, 6). Lateral stylets apically enlarged (Figs. 5, 6) …………………….. Dictyogenus jurassicum</p> <p>5’ Apex of frontal epiproct sclerite straight, angled posteriorly, in lateral view (Fig. 80) ………. Dictyogenus fontium species complex</p> </div>	https://treatment.plazi.org/id/352C87AB0076FFD1F5F6F99059437FB1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Reding, Jean-Paul G.;Launay, Bertrand;Doaré, Jacques Le;Ruffoni, Alexandre;Vinçon, Gilles	Reding, Jean-Paul G., Launay, Bertrand, Doaré, Jacques Le, Ruffoni, Alexandre, Vinçon, Gilles (2019): Two New Species Of Dictyogenus Klapálek, 1904 (Plecoptera: Perlodidae) From The Jura Mountains Of France And Switzerland, And From The French Vercors And Chartreuse Massifs. Illiesia 15 (2): 27-64, DOI: http://doi.org/10.5281/zenodo.4761285
352C87AB0078FFD0F5F6FCC158E07946.text	352C87AB0078FFD0F5F6FCC158E07946.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Dictyogenus Klapalek 1904	<div><p>Morphological key to mature larvae) (&gt; 8 mm) of Dictyogenus</p> <p>The larva of Dictyogenus fontium was first described by Kühtreiber (1931), but erroneously listed under the name of D. alpinum, as the same author later (1934) recognizes when providing descriptions of both species. The single major criterion used by him for separating both species hinges on the presence (D. alpinum) or absence (D. fontium) of a row of erect medio-dorsal setae on the pronotum. This criterion, however, only separates the larvae of the Dictyogenus fontium species complex from the group composed of D. alpinum, D. jurassicum and D. muranyii. As can be inferred from the descriptions of the two new species in the present contribution, the setation patterns of the medio-dorsal row of setae on the pronotum as well as on the mesonotum, metanotum and abdominal terga in the genus Dictyogenus are far more complex. We have also noted that early instar larvae continue to undergo important morphological changes prior to reaching 8 mm body length. Prior to this size they are impossible to identify to species.</p> <p>1 Pronotum with medio-dorsal setae (Figs. 13, 40, 41, 65, 71). Postero-dorsal edge of the femora and tibiae with a fringe of dense silky hair setae (Figs. 15, 42, 70) …………………… 2</p> <p>1’ Pronotum devoid of medio-dorsal setae (Figs. 85, 86). Postero-dorsal edge of femora and tibiae with a fringe of sparse silky hair setae (Fig. 87) ……….. Dictyogenus fontium species complex (not keyed)</p> <p>2 Medio-dorsal setae on pronotum, mesonotum, metanotum and abdominal terga very long, erect, dense and continuous, extending to the occiput of the head (Figs. 65, 71). Interocellar area with a wide yellow patch, trident-shaped (Figs. 62, 63). Lateral ocelli with circum-ocellar yellow patch (Fig. 63). A large, elliptical, yellow patch above each lateral ocellus (Figs. 62, 63). M-line curved and well visible (Figs. 62, 63). Upper margin of stipes with numerous (7- 25) spines arranged in several rows (Fig. 69). Pronotum markedly trapezoidal with straight sides (Fig. 63). Paragenital plates, in ventral view, with numerous spines (3-20, average 15) per side (Fig. 68). Cerci with medio-dorsal row of swimming hairs of dense and compact, twice as long as the width of the cercus (Fig. 67) …………………………... Dictyogenus alpinum</p> <p>2’ Medio-dorsal setae on pronotum, mesonotum, metanotum and abdominal terga less dense, often with interruptions (Figs. 13, 14, 15, 40, 41). Postero-medial part of head without setae, but only with a few long spines (Figs. 40, 41). Upper margin of stipes with fewer spines (1- 13) arranged in a single row (Fig. 45). Paragenital plates, in ventral view, with fewer, generally unpaired, spines or else devoid of spines (Figs. 17, 44). Cerci with medio-dorsal row of swimming-hairs only slightly longer than the width of the cercus (Figs. 16, 43) …………………………………… 3</p> <p>3 Medio-dorsal setae on pronotum short and scattered, arranged as two loosely demarcated rows (Fig. 13). Interocellar area pale yellow, narrow with well demarcated contours (Figs. 10 and 11). Pronotum ovoid in shape (Fig. 11). Endemic to the Jura Mountains...................................... Dictyogenus jurassicum</p> <p>3’ Medio-dorsal setae on pronotum longer, but dense, sometimes covering only its lower half (Figs. 40, 41). Interocellar area with wide, pale yellow, keyhole-shaped area (Fig. 37, 38).</p> <p>Pronotum nearly trapezoidal in shape (Figs. 37, 39). Endemic to the Chartreuse and Vercors massifs ………. Dictyogenus muranyii</p></div> 	https://treatment.plazi.org/id/352C87AB0078FFD0F5F6FCC158E07946	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Reding, Jean-Paul G.;Launay, Bertrand;Doaré, Jacques Le;Ruffoni, Alexandre;Vinçon, Gilles	Reding, Jean-Paul G., Launay, Bertrand, Doaré, Jacques Le, Ruffoni, Alexandre, Vinçon, Gilles (2019): Two New Species Of Dictyogenus Klapálek, 1904 (Plecoptera: Perlodidae) From The Jura Mountains Of France And Switzerland, And From The French Vercors And Chartreuse Massifs. Illiesia 15 (2): 27-64, DOI: http://doi.org/10.5281/zenodo.4761285
