identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
4F7E261A77211220C42DFD68FAFBF95D.text	4F7E261A77211220C42DFD68FAFBF95D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cheiroseius Berlese 1916	<div><p>Genus Cheiroseius Berlese</p> <p>1843. Sejus Koch, Ubersich des Arachnidensystems, Heft 3: 92.</p> <p>1916. Cheiroseius Berlese, Redia, 12: 33, 40.</p> <p>1918. Episeius Hull, Transactions of the Natural History Society of Northumberland, Durham and Newcastle­upon­Tyne, 5: 63.</p> <p>1938. Episiella Willmann, Annales Historiconaturales Musei Nationalis Hungarci, Zoologie, 31: 167.</p> <p>1960. Sejus, Evans &amp; Hyatt, Bulletin of the British Museum (Natural History) Zoology, 6: 27, 49.</p> <p>1971. Sejus, Karg, Die Tierwelt Deutschlands, 59: 253.</p> <p>1981. Cheiroseius (Posttrematus) Karg, Zoologische Jahrbuscher Systematik, 108: 51.</p> <p>Type­species: Sejus unguiculatus Berlese, 1887</p> <p>Distribution of genus: INDIA: Rajasthan, Sikkim, West Bengal. ELSEWHERE: Argentina, Australia, China, Cuba, Galapagos Island, Germany, Jamaica, Japan, Nepal, South Africa, U.K., U.S.A.</p> <p>Key to the Indian species of the genus Cheiroseius</p> <p>1. Setae J5 serrated........................................................................... rajasthanicus sp. nov.</p> <p>­ Setae J5 simple............................................................................................................. 2</p> <p>2. Sternal shield with semicircular marking anteriorly.................................................... 3 ­ Sternal shield without any such marking..................................................................... 4</p> <p>3. Ventri­anal shield broadly triangular, with 9 setae............................................. curtipes ­ Ventri­anal shield broadly oval, with 7 setae......................................... ovalis sp. nov.</p> <p>4. Vertex well­developed; some dorsal setae borne on raised tubercles................ indicus ­ Vertex not well­developed; all dorsal setae borne on raised tubercles.......... nepalensis</p></div> 	http://treatment.plazi.org/id/4F7E261A77211220C42DFD68FAFBF95D	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.		MagnoliaPress via Plazi	Bhattacharyya, Asit K.;Bhattacharyya, Sisir K.	Bhattacharyya, Asit K., Bhattacharyya, Sisir K. (2004): Two new species of the genus Cheiroseius Berlese, 1916 (Ascidae: Mesostigmata) from the Indian Thar Desert. Zootaxa 403 (1): 1-11, DOI: 10.11646/zootaxa.403.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.403.1.1
4F7E261A77221224C42DFEC0FDD6F94E.text	4F7E261A77221224C42DFEC0FDD6F94E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cheiroseius ovalis Bhattacharyya & Bhattacharyya 2004	<div><p>Cheiroseius ovalis sp. nov. (Figs. 1–8)</p> <p>Diagnosis: Dorsal shield with 36 pairs of thick, spinelike setae; all dorsal setae on prominent tubercles; setae J5 simple, setae Z4 longest; sternal shield with conspicuous marking; ventri­anal shield broadly oval, with seven setae; six rows of deutosternal denticles, each row with 7–14 denticles.</p> <p>Female: Holodorsal shield (448µ long along midline, 264µ wide) highly sclerotized, with dense reticulation, and with 36 pairs of thick, spinelike setae; anterior region with 21 pairs of setae, remaining setae on posterior region of the shield; setae J4–J5, Z5 and S5 are 32µ, 12µ, 36µ and 39µ long respectively; setae Z4 longest (41µ) of all dorsal setae; lateral membrane lineated, with 7 pairs of setae; all setae on dorsal shield borne on prominent tubercles (Fig. 1); peritreme visible dorsally, extending upto beyond setae j1 (16µ); dorsal shield complement of poroids and gland pores difficult to discern amidst ornamentation.</p> <p>Tritosternum with elongate base, lacinae paired, sparsely plumose (Fig. 2). Sternal shield (88µ long along midline, 166µ wide at level of anterolateral corners) extended anterolaterally, with three subequal (22µ – 24µ) sternal setae; reticulation and conspicuous marking on sternal shield as depicted in fig. 3; metasternal shields large, with metasternal setae (18µ); genital shield finely granulated along posterior margin, truncate posteriorly, widened behind genital setae forming slightly convex lateral margin; hyaline anterior margin of genital shield extending over the region posterior to sternal shield to level of metasternal setae; remnants of endopodal shield present between coxae II–IV; posterior extremities of exopodal­peritrematal shield broad, finely granulated, with several components, curving behind coxae IV; ventral membrane between genital and ventri­anal shield folded, with 5 pairs of setae, including the two pairs posterior to the level of para­anal setae. Peritreme wide, stigmatal opening large, placed at level of anterior half of coxae IV. Ventri­anal shield broadly oval, slightly wider (134µ) than long (120µ), coarsely granulated posteriorly, with 7 simple, subequal (31µ – 32µ) ventral setae; anal opening large; cribrum present in the form of a broad strip behind the post­anal seta.</p> <p>Epistome trispinate, each spine denticulate, with 2–3 spines each (Fig. 4); hypognathum with short, peglike corniculi; paired corniculi almost parallel to each other; internal malae finely fringed extending upto midlevel of corniculi; six rows of deutosternal denticles, with 7–14 denticles in each row; sixth row widest, discontinuous (Fig. 5); four pairs of simple, subcapitular setae; posterior hypostomatic (26µ) and palpcoxal setae subequal (28µ) but almost half length of anterior hypostomatic setae (52µ); besides simple setae, thornlike and club­shaped setae present on palpal genu and tibia respectively (Fig. 6). Chelicerae damaged, not examined.</p> <p>All legs with well­developed ambulacra and claws; tibia I slightly shorter (150µ) than tarsus I (160µ); excluding ambulacra, length of legs I–IV as follows: 720µ, 460µ, 420µ and 530µ; tarsus of legs I and II depicted in figs. 7 and 8 respectively; all leg setae smooth; setation of legs I­II­III­IV, respectively: femora 11­10­6­6 and genua 13­10­8­9.</p> <p>Male: Unknown.</p> <p>Type: Holotype female, Zoological Survey of India compound, Jodhpur, Rajasthan; ex. decomposed grass litter collected from semi­dried drainage system; 23 March 2003; A.K. Bhattacharyya coll.</p> <p>Distribution: INDIA: Rajasthan.</p> <p>Differential diagnosis: The new species, Cheiroseius ovalis differs from all the known species of Cheiroseius in having 7 setae on its ventri­anal shield. The only known other Cheiroseius species which possesses 7 setae on ventri­anal shield is Cheiroseius dromadis (Evans and Hyatt, 1960). Besides the above similarity, the new species shows affinities with C. dromadis in having a three­pronged tectum, which is common for most of the Cheiroseius species. C. dromadis shows a number of dissimilarities with the new species, on both dorsal and ventral aspects such as: presence of 37 pairs of pilose dorsal setae; presence of dorsal hump; absence of anterolateral marking on sternal shield; weakly developed tritosternum; shape of metasternal, genital and ventri­anal shield; comparatively longer length of ventral setae; structure of periitrematal shield; longer internal malae (several times longer than that of C. ovalis); strongly developed ambulacra and presence of club­shaped setae on tarsus II. The new species also shows affinities with C. parbatensis (Evans and Hyatt, 1960) in having following similarities: number, nature and almost same relative length of dorsal setae, similar shape of tectum, sternal and metasternal shield. However, the new species differs from C. parbatensis in the following aspects: shorter length of setae J4, prominent, characteristic marking on anterolateral edge of sternal shield, shape of genital and ventri­anal shield, number of setae on ventri­anal shield and setation of tarsus II.</p> <p>Etymology: The species name ovalis has been derived from the broadly oval shape of the ventri­anal shield.</p> </div>	http://treatment.plazi.org/id/4F7E261A77221224C42DFEC0FDD6F94E	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.		MagnoliaPress via Plazi	Bhattacharyya, Asit K.;Bhattacharyya, Sisir K.	Bhattacharyya, Asit K., Bhattacharyya, Sisir K. (2004): Two new species of the genus Cheiroseius Berlese, 1916 (Ascidae: Mesostigmata) from the Indian Thar Desert. Zootaxa 403 (1): 1-11, DOI: 10.11646/zootaxa.403.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.403.1.1
4F7E261A77261228C42DFEBAFD51F966.text	4F7E261A77261228C42DFEBAFD51F966.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cheiroseius rajasthanicus Bhattacharyya & Bhattacharyya 2004	<div><p>Cheiroseius rajasthanicus sp. nov. (Figs. 9–20)</p> <p>Diagnosis: Dorsal shield with 36 pairs of setae; nine pairs of dorsal setae on tubercles; setae J5 serrated; ventri­anal shield broadly triangular, with 9 setae; seven rows of deutosternal denticles, each row with 7–16 denticles; sterniti­genital shield in male with four pairs of setae.</p> <p>Female: Dorsal shield (341µ long, 157µ wide) heavily sclerotized, with reticulated ornamentation and 36 pairs of setae; setae j1–j6, z1–z6, s1–s6 and r2–r4 placed on anterior region of the shield; setae r5 occur on the lateral interscutal membrane; posterior region of the dorsal shield complete with 15 pairs of setae; setae R1–R7 occur on the lateral interscutal membrane posterioly; nine pairs of setae borne on raised tubercles; excepting serrated J5 setae (7µ), all setae simple, thornlike, abruptly tapering at tips; setae J1–J4 20µ long, Z5 and S5 are 22µ and 31µ long respectively (Fig. 9).</p> <p>Tritosternum long, with moderately pilose lacinae. Sternal shield (55µ long along midline, 98µ wide between two anterolateral corners) finely granulated, slightly concave medially; semicircular structures present at level of first pair of sternal setae; setae st1–st2 and st4 subequal (7µ) but shorter than setae st3 (12µ); sternal shield convex posteriorly; metasternal shields irregular in shape, with metasternal setae; remnants of endopodal shield present between coxae II­IV. Peritreme moderately wide; post­stigmatal prolongation of peritrematal shield encircling coxae IV, divided into several small platelets. Genital shield with genital setae; ventral membrane posterior to genital shield with two pairs of setae (Jv1 and Zv1) and two pairs of post­genital scutellae. Metapodal shields small, present laterally. Ventri­anal shield (78µ long, 87µ wide) roughly triangular in outline, with three pairs (Jv2–Jv3 and Zv2) of setae, excluding a pair of para­ and a post­anal seta; post­anal seta (12µ) shorter than para­anal setae (20µ); anal opening large, placed at the middle of ventri­anal shield; setae Jv4 and Jv5 placed on ventral membrane and borne on raised tubercles; lineation of ventral membrane around ventri­anal shield depicted in fig. 10.</p> <p>External malae relatively short, stout (Fig. 11); internal malae shorter than external malae, tips curved, slightly outward, outer margin finely fringed laterally; salivary styli arch­shaped anteriorly; anterior hypostomatic setae and V2 (situated on palp trochanter) almost subequal (50µ – 51µ) but almost double length of posterior one (25µ). Ventrally seven rows of deutosternal denticles present, with 7–16 teeth in each row, fifth row widest; lateral margin of deutosternal groove not clearly discernible, rounded structures present in the distal half of lateral groove. Palp apotele two­tined; epistome tripartite, all tips with minute denticulate projection (Fig. 12). Chelicerae well­developed, movable digit bidentate, fixed digit tridentate, pilus dentilis simple (Fig. 13).</p> <p>All legs provided with well­developed ambulacra and paired claws; tarsus I slightly longer (160µ) than tibia I (150µ); length of legs I–IV are 590µ, 500µ, 450µ and 610µ respectively; tarsus I distally provided with paired claws, 3­pointed lobes and sensory setae (Fig. 14); tarsus II as figured (Fig. 15); some setae on legs II–IV relatively short, spine­like (Fig. 16); leg chaetotaxy normal for the genus.</p> <p>Male: Holodorsal shield 284µ long, 182µ wide; anterior region of the dorsal shield with 19 pairs of setae; posterior region of the dorsal shield with 14 pairs of setae; setae J5 serrated; in both the paratypes, setae J3 unpaired and present on the right aspect only (Fig. 17).</p> <p>Tritosternum normal for the genus. Sterniti­genital shield (118µ long, 100µ wide) lineated, with 4 pairs of setae (Fig. 18), setae st4 absent; anal orifice at the anteromedian portion of sterniti­genital shield. Ventri­anal shield (118µ long along midline, 175µ wide between two anterolateral corners) with four pairs of setae, excluding a pair of para­ and a post­anal setae; exopodal and peritrematal shield fused; peritreme moderately wide, stigmata placed at anterior level of coxae IV.</p> <p>Tectum as in female. Five rows of deutosternal denticles, with 16–30 denticles in each row (Fig. 19). Movable cheliceral digit tridentate, fixed cheliceral digit with several small teeth (Fig. 20); spermadactyl process not clearly discernible.</p> <p>All legs with well­developed ambulacra and claws; excluding ambulacra, length of legs I–IV as follows: 510µ, 320µ, 320µ and 390µ; no sexual dimorphism has been observed.</p> <p>Types: Holotype female, Jaliwada, Jodhpur, Rajasthan; ex. soil beside kitchen drainage; 15 January 2001. Paratypes: 2 females, Zoological Survey of India compound, Jodhpur, Rajasthan; ex. decomposed grass litter collected from semi­dried drainage system; 2 July 2003; A.K. Bhattacharyya coll. 4 females, 1 male, 23 March 2003, collection details same; 5 females, 1 male, 27 March 2003; collection details same; 1 female, 4 April 2003; collection details same.</p> <p>Distribution: INDIA: Rajasthan.</p> <p>Differential diagnosis: The new species, Cheiroseius rajasthanicus superficially resembles C. indicus (Pramanik and Raychaudhuri, 1977) in having similar type of dorsal reticulation, shape and reticulation of sternal shield as well as the presence of sclerotized platelets between genital and ventri­anal shield. However, the new species differs from indicus in the following aspects: nature of dorsal setae, serrated J5 seta, shape of metasternal shield and chelicerae.</p> <p>Lack of congruence between ventral setation of male and female in ascids and their relatives is unusual rather than unknown. Evans and Hyatt (1960) mentioned the absence of setae st4 among adult males of all species of Platyseius but not in any male of the three Cheiroseius species described therein. In his personal communication, Lindquist informed us that some unidentified species of Cheiroseius in the Canadian National Collection also show the absence of setae st 4 in male specimens. It is considered that in Dermanyssina setae st1–st5 are the most highly conserved chaetotactic series. Since seta st4 is the last one to be added in the deutonymphal stage, it is likely probable that it will be lost later in course of further development i.e., adult. However, in the absence of any detailed further study on different developmental stages, the ontogenetic sequence and mechanism for this type of dimorphic suppression will remain uncertain.</p> <p>Etymology: The species has been named after the name of the state i.e., Rajasthan to which the type­locality belongs.</p></div> 	http://treatment.plazi.org/id/4F7E261A77261228C42DFEBAFD51F966	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.		MagnoliaPress via Plazi	Bhattacharyya, Asit K.;Bhattacharyya, Sisir K.	Bhattacharyya, Asit K., Bhattacharyya, Sisir K. (2004): Two new species of the genus Cheiroseius Berlese, 1916 (Ascidae: Mesostigmata) from the Indian Thar Desert. Zootaxa 403 (1): 1-11, DOI: 10.11646/zootaxa.403.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.403.1.1
