taxonID	type	description	language	source
00269932E67E5D7B9D41BED3769275D2.taxon	diagnosis	Diagnosis. Amongst species of Myrmecotypus, an elongated and constricted abdomen is only found in M. mazaxoides sp. nov. (Figs 2, 3, 5) and M. lineatus (Emerton, 1909), the latter occurring along the east coast of the United States (Reiskind 1969). Additionally, both species share a broad carapace (carapace index ~ 47 - 52) and all eyes small and sub-equal (male of M. lineatus not described). Females of M. mazaxoides sp. nov. can be distinguished from those of M. lineatus by the following characteristics: dorsum dark brown with an anthracite-greyish appearance in live condition (Fig. 7 A, B) (in M. lineatus, carapace yellow-orange, dorsal sclerite of abdomen yellow, posterior part of abdomen dark purple-brown with light spots), coxae II-IV translucent white, I reddish (Figs 3 B, 5) (in M. lineatus, all coxae light), dorsal sclerite pyriform (elliptic in M. lineatus), tibia I with 3 promarginal and 2 retromargial spines (tibia I spination 2 - 2 in M. lineatus); chelicerae with two promarginal teeth with distal tooth reduced to small denticle (3 promarginal teeth in M. lineatus); copulatory openings of epigyne anterior to spermathecae (lateral in M. lineatus).	en	Perger, Robert, Duperre, Nadine (2021): Myrmecotypus mazaxoides sp. nov. - a new ground-dwelling, carpenter ant-resembling sac spider species from the Bolivian orocline, with indirect evidence for species-specific mimicry (Araneae, Corinnidae, Castianeirinae). Zoosystematics and Evolution 97 (1): 273-280, DOI: http://dx.doi.org/10.3897/zse.97.64766, URL: http://dx.doi.org/10.3897/zse.97.64766
00269932E67E5D7B9D41BED3769275D2.taxon	description	Description of male holotype. Body length 4.69; carapace length 2.17, width 1.11, carapace index 51; cephalic width 0.72, cephalic index 65; sternum length 0.93, width 0.67, sternum index 72; abdomen length 2.42, maximum width anterior part 0.76, maximum width posterior part 1.04, abdominal index 43; petiole length 0.10, width 0.29; dorsal sclerite length 2.32 (width agrees with abdominal width); epigastric sclerite length 0.62, width 0.74; ventral sclerite length 0.95, width 0.51; inframamillary sclerite length 0.09, width 0.15. AER 0.47; AME-AME 0.08; AME-ALE 0.02; PER 0.60; PME-PME 0.14; PME-PLE 0.11. Carapace (Fig. 2 A). Long pyriform, truncated anteriorly, front slightly convex, cephalic area laterally somewhat narrowed, carapace widest in middle, three slight concavities in posterior half, posterior margin straight. Dorsum weakly shiny, smooth, microsculpture reticulate with evenly distributed, fine pits, dark brown; short, appressed, separate, white and brassy setae, simple on cephalic area and feathery on thoracic area (setae providing an anthracite-greyish appearance in live condition), several relatively long, forward-pointing, dark setae on front of cephalic area. Eyes. Eight sub-equal eyes formed in two rows; PER distinctly recurved; AER slightly recurved. Chelicerae. Orange-brown, shiny, with separated erect dark setae, area between retro- and promarginal rows of cheliceral teeth orange-white with dense white setae, two retromarginal teeth and two promarginal teeth, with distal tooth reduced to small denticle. Abdomen (Figs 2 A, 3 A). Elongated, distinctly constricted medially, posterior part broader than anterior part; petiole only moderately developed, very narrow medially, proximal margin strongly concave; dorsal sclerite almost completely covering abdomen dorsally and laterally; ventral sclerite not reaching to level of inframamillary sclerite, latter narrow, subrectangular, broader than long. Dorsum weakly shiny, smooth, microsculpture reticulate with evenly distributed, fine pits, dark brown; covered with separate, simple, short, brassy setae, abdominal setae long, simple, not sclerotized, second pair longer than first; in constriction, distinct band of relatively long, dense feathery white setae, on anterior part of abdomen similar band, less dense in the middle, on posterior part three to four indistinct bands of similar setae. Legs. Coxae II and III translucent white, trochanters II and III dark yellow; coxae and trochanters I and IV reddish-brown; legs mostly sparsely covered with fine, golden setae, including feathery setae, dense in some areas, femora and tibia with separated, erect, long setae; femora I and II proximal fifths reddish, distal four-fifths laterally translucent, white and dark stripes along dorsal edges, remainder of legs I and II reddish-yellow; tibia I promarginal with 3 spines, retromarginal with 2 spines; femora and tibiae III and IV reddish-brown, dark grey stripes along dorsal sides; remainder of leg III orange-light brown; leg IV tarsus yellow; legs III and IV lined with short, appressed white feathery setae. Palp. Pedipalp tibia with two distinct, long setae and several shorter setae (Fig. 4 A, B), retrodistal margin with one small, obtuse tooth-like apophysis (Fig. 4 D, E); maximum width of tibia 96 % of maximum width of bulb when viewed retrolaterally; narrow genital bulb drawn out into long neck, with long, thin, sclerotized embolus with three coils and a basal ridge (Fig. 4 C); sperm ducts with two loops, both lateral and basal to embolus tube (Fig. 4 A, B).	en	Perger, Robert, Duperre, Nadine (2021): Myrmecotypus mazaxoides sp. nov. - a new ground-dwelling, carpenter ant-resembling sac spider species from the Bolivian orocline, with indirect evidence for species-specific mimicry (Araneae, Corinnidae, Castianeirinae). Zoosystematics and Evolution 97 (1): 273-280, DOI: http://dx.doi.org/10.3897/zse.97.64766, URL: http://dx.doi.org/10.3897/zse.97.64766
00269932E67E5D7B9D41BED3769275D2.taxon	etymology	Etymology. The specific epithet, Myrmecotypus mazaxoides, is derived from the Castianeirinae genus " Mazax " and " oeidēs " (Greek) = resembling or looking like and refers to the general resemblance of the habitus of this species to species of Mazax.	en	Perger, Robert, Duperre, Nadine (2021): Myrmecotypus mazaxoides sp. nov. - a new ground-dwelling, carpenter ant-resembling sac spider species from the Bolivian orocline, with indirect evidence for species-specific mimicry (Araneae, Corinnidae, Castianeirinae). Zoosystematics and Evolution 97 (1): 273-280, DOI: http://dx.doi.org/10.3897/zse.97.64766, URL: http://dx.doi.org/10.3897/zse.97.64766
00269932E67E5D7B9D41BED3769275D2.taxon	distribution	Geographical and ecological distribution. This species is only known from the type locality in the recently established urbanization of Santa Cruz de la Colina, Urubo, Santa Cruz department. This urbanization included empty plots with savanna grasslands, plant successions and bushes or houses with gardens. According to the ecoregion delineation by Navarro and Ferreira (2011), the forest in this area is considered Chiquitano forest. The urbanization was surrounded by a mosaic of forest fragments, Cerrado-like grassland and savanna. Myrmecotypus mazaxoides sp. nov. was observed foraging on the ground of open grassland during the day, under or between dense ground vegetation (Fig. 7 A). Because of its presence in open habitats, it is likely that the species also occurs in similar habitats in the Gran Chaco area in southern Bolivia, Paraguay and northern Argentina. Despite high sampling effort in several Bolivian forest ecoregions (Perger and Perger 2017; Perger and Rubio 2018, 2020 a, b), the new species was not observed in forest habitats. Myrmecotypus mazaxoides sp. nov. co-occurred with four different species of Castianeira (not determined) in the same habitat, three of which were commonly observed and had a dark body (blackish or black with grey) and red legs. A single male of Mazax cf. ramirezi Rubio & Danisman, 2014, was collected as well, among individuals of M. mazaxoides sp. nov.	en	Perger, Robert, Duperre, Nadine (2021): Myrmecotypus mazaxoides sp. nov. - a new ground-dwelling, carpenter ant-resembling sac spider species from the Bolivian orocline, with indirect evidence for species-specific mimicry (Araneae, Corinnidae, Castianeirinae). Zoosystematics and Evolution 97 (1): 273-280, DOI: http://dx.doi.org/10.3897/zse.97.64766, URL: http://dx.doi.org/10.3897/zse.97.64766
3C05F4446C3F5CFD80D2E3DC047BEE27.taxon	diagnosis	Diagnosis. Cephalic region wide (cephalic index range 64 - 89), carapace narrowed (carapace index ˂ 60), without thoracic groove but with slight depression instead; PER wider than AER and almost straight to moderately recurved, AME larger than ALE, PME-PME greater than PME-PLE, PLE situated close to lateral margin of cephalic area; abdomen only very slightly petiolated; tibia I ventral spines paired in 2 - 2, 3 - 2, 3 - 3 or 4 - 4 arrangement; trochanter IV notch usually absent, with only a tiny one, if present (Perger and Rubio 2021 b).	en	Perger, Robert, Duperre, Nadine (2021): Myrmecotypus mazaxoides sp. nov. - a new ground-dwelling, carpenter ant-resembling sac spider species from the Bolivian orocline, with indirect evidence for species-specific mimicry (Araneae, Corinnidae, Castianeirinae). Zoosystematics and Evolution 97 (1): 273-280, DOI: http://dx.doi.org/10.3897/zse.97.64766, URL: http://dx.doi.org/10.3897/zse.97.64766
