Euryopis catarinensis, Rodrigues & Marta & Figueiredo, 2021

Rodrigues, Everton Nei Lopes, Marta, Kimberly S. & Figueiredo, Cassiano P., 2021, Description of four new species of the spider genus Euryopis Menge, 1868, with new records from Brazil (Araneae, Theridiidae, Hadrotarsinae), Zootaxa 4966 (5), pp. 535-549 : 544-546

Euryopis catarinensis new species

Figs. 7 A–D , 8D , 10

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Type material. Holotype. Brazil: Santa Catarina (Garopada 28°01’36.2”S, 48°36’48.0”W), 12–15. III.2001, M.P. Barros leg., 1M ( MCN 33781). Collected by pitfall-trap.

Etymology. The specific name is derived from the type locality.

Diagnosis. The male of Euryopis catarinensis n. sp. is similar to that of Euryopis camis (see Levi, 1963, fig. 19) but differs from this latter species by having the median apophysis more rounded with the posterior margin sclerotized, while the median apophysis is elongated in the later; by the different course of the ducts in the tegulum, medially positioned ( Fig. 8D ), while the spermatic duct is positioned basally in the E. camis (see Levi, 1963, fig. 19).

Description. Male holotype (MCN 33781). Total length 1.99. Carapace length 0.92, width 0.73, clypeus height 0.31. Sternum length 0.42, width 0.42. Abdomen length 1.07, width 0.86, height 0.58. Leg formula IV/I/II/ III; segment length (I/II/III/IV): femora 0.56/0.52/0.48/0.63; patellae+tibiae 0.63/0.56/0.58/0.79; metatarsi+tarsi 0.63/0.56/0.54/0.73; total 1.82/1.64/1.60/2.15. Carapace oval ( Fig. 7A ), dark reddish brown. Chelicerae ( Fig. 7C ) reddish brown. Ocular region ( Fig. 7C ) slightly pronounced, eyes with black margins. Eye diameter and interdistances: AME 0.04, PME 0.04, ALE 0.06, PLE 0.06, AME–AME 0.06, AME–ALE 0.02, PME–PME 0.06, PME–PLE 0.04. Sternum ( Fig. 7B ) lighter than the carapace, with darkened edges. Abdomen oval ( Figs 7A, B ), dorsal view orange brown, slightly lighter than the carapace, and darkened edges ( Figs 7A, D ). In ventral view, the abdomen has a uniform orange-brown color, with dark pigmentation on the laterals. Spinnerets yellow. Palp with embolus ( Fig. 8D ) not sclerotized; median apophysis rounded with spermatic duct 8-shaped, cymbium oval in dorsal view without apical projection; ventrally, duct in the tegulum as an inverted “S” ( Fig. 8D ).

Female. Unknown.

Natural history. Unknown.

Distribution. Brazil (state of Santa Catarina, Garopaba, Fig.10 ).

Figures

FIGURE 7. Euryopis catarinensis n. sp. A–D. Male habitus:A, Dorsal view. B, Ventral view. C, Frontal view. D, Lateral view. Scale bars: 1 mm.

FIGURE 8. Male palp Euryopis n. sp., ventral view. A, Euryopis candiota n. sp. B, Euryopis nasuta n. sp. C, Euryopis boliviensis n. sp. D, Euryopis catarinensis n. sp. Abbreviations: Cy, cymbium; E, embolus; MA, median apophysis, ST, subtegulum; T, tegulum. Scale bars: 0.25 mm.

FIGURE 10. Distribution of the new species and new records of genus Euryopis in Brazil and Bolivia.