Paratrechalea longigaster Carico 2005

Cruz, Estevam L., Silva, Da & Lise, Arno A., 2010, Taxonomic notes on the genus Paratrechalea Carico, 2005 (Araneae: Trechaleidae: Trechaleinae), Zootaxa 2667, pp. 43-50 : 44

Paratrechalea longigaster Carico 2005

Figs 1–3

Paratrechalea longigaster Carico 2005: 808 , figs 15, 24, 25 (Female holotype, Santa Maria, Misiones, Argentina, 1956, M.J. Viana leg., deposited in Museo Argentino de Ciências Naturales Bernardino Rivadavia, not examined).

Diagnosis. The male of P. longigaster resembles that of P. ornata (see Carico 2005: p. 806, fig. 18) by the shape of the median apophysis, wide at the base, covering most of the guide ( Fig. 1 ), but can be distinguished by the acute apex of the retrolateral tibial apophysis ectal division, which is bifurcated ( Figs 2, 3 ).

Note. The male here described was considered as belonging to P. longigaster because of its conspicuously elongated abdomen.

Description. Male (Allotype, IBSP 55739). Total length 8.71. Carapace, 3.32 long, 2.82 wide, yellowish, with median light brown band, darker laterally. Clypeus brownish, 0.18 high. Anterior eye row slightly straight, 0.74 wide; posterior 1.32 wide. Eye diameters, interdistances, and median ocular quadrangle: AME 0.14, ALE 0.16, PME 0.26, PLE 0.18; AME-AME 0.12, AME-ALE 0.10, PME-PME 0.20, PME-PLE 0.28, OQA 0.36, OQP 0.68, OQH 0.60. Chelicerae bristly, light brown, with median dark brown band, with lateral carina; promargin and retromargin of fang furrow with three teeth equidistant and equal in size. Sternum yellowish, bristly, darker laterally; 1.66 long, 1.32 wide. Labium yellowish, slightly darker laterally, 0.49 long, 0.48 wide. Legs yellowish, relative length: I-IV-II-III, I – femur 4.73/ tibia-patella 6.80/ metatarsus 5.22/ tarsus 2.82/ total 19.57; II – 4.70/ 6.22/ 4.98/ 2.65/ 18.55; III – 3.32/ 3.48/ 2.90/ 1.32/ 11.22; IV – 5.22/ 5.81/ 5.72/ 2.33/ 19.08. Ventral pairs of macrosetae on tibiae: I-5; II-5; III-3; IV-4. Abdomen, 5.81 long, grayish, with longitudinal light brown band on dorsal surface, scattered setae. Venter grayish, with scattered setae. Palpus with enlarged ventral division of median apophysis (VD; Fig. 1 ); retrolateral tibial apophysis with prominent ectal division (ECD; Figs 1, 3 ). Tibiae of palpi with prominent ventral protuberance (VP; Figs 1, 3 ).

Other material examined. BRAZIL: Minas Gerais, Catas Altas, Reserva Particular do Patrimônio Natural ( RPPN) Santuário do Caraça (20°04’S, 43°23’W), 1 Ƥ, 12.I.2002, E. S. S. Álvares leg. ( IBSP 55739); São Paulo, Estação Biológica Itirapina (22° 15’ S, 47° 49’ W), 1 Ƥ, IX.1992, A. A. Nogueira leg. ( IBSP 52845).

Distribution. Argentina (Misiones), Brazil (São Paulo, Santa Catarina, Rio Grande do Sul).

Figures

FIGURES 1 – 5. 1 – 3. Paratrechalea longigaster, left palpus (1 ventral view, 2 detail of retrolateral tibial apophysis, 3 retrolateral view). 4, 5. Paratrechalea julyae, female genitalia (4 epigynum, ventral view, 5 internal genitalia, dorsal view). (ECD = ectal division of RTA, END = ental division of RTA, DD = dorsal division of median apophysis, G = guide of median apophysis; HS = head of spermathecae; LL = lateral lobes, MA = median apophysis, MF = middle field of epigynum, RTA = retrolateral tibial apophysis, SC = scape; SS, stalk of spermathecae; VD = ventral division of MA).