Euryopis Menge, 1868

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 : 536

publication ID	https://doi.org/10.11646/zootaxa.4966.5.3
publication LSID	lsid:zoobank.org:pub:86908B62-452C-447E-B412-0F7153E1C700
DOI	https://doi.org/10.5281/zenodo.4792377
persistent identifier	https://treatment.plazi.org/id/03FE8550-C424-4B0D-FF6A-FC8936ECFADE
treatment provided by	Plazi (2021-05-10 08:06:19, last updated 2024-11-27 08:11:52)
scientific name	Euryopis Menge, 1868
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Genus Euryopis Menge, 1868 View in CoL View at ENA

Type species: Micryphantes flavomaculatus C. L. Koch, 1836 (= Euryopis flavomaculata View in CoL )

Diagnosis. Euryopis differs from Dipoena , Lasaeola and Phycosoma by the absence of carapace spherical or rounded and by the absence of distinct cervical grooves. Euryopis presents carapace oval ( Figs 1A View FIGURE 1 , 2A View FIGURE 2 , 3A View FIGURE 3 , 4A View FIGURE 4 ), not modified. Differs from Guaraniella by the cymbium without deep apical notch. Differs from Audifia by the abdomen without a sclerotized ring around the spinnerets and pedicel and differs from Audifia by the not elongate carapace. Euryopis has an oval ( Figs 1A View FIGURE 1 , 2A View FIGURE 2 , 4A View FIGURE 4 , 5A View FIGURE 5 ) or subtriangular abdomen (see Levi 1963, Fig. 9 View FIGURE 9 ), dorsoventrally flat ( Fig. 7D View FIGURE 7 ), sometimes project over the carapace; blackish brown to black ( Fig. 1A View FIGURE 1 ), sometimes with silver dots and males with sclerotized scutum on the dorsum ( Figs 7A, D View FIGURE 7 ). The females of Euryopis have the epigynum with an oval depression ( Fig. 9C View FIGURE 9 ); and males have a distal cymbial projection ( Fig. 8A View FIGURE 8 ), however there are some species lacking such projection ( Fig. 8D View FIGURE 8 ) or having it little pronounced ( Figs 8B, C View FIGURE 8 ).

References

Levi, H. W. (1963) American spiders of the genera Audifia, Euryopis and Dipoena (Araneae: Theridiidae). Bulletin of the Museum of Comparative Zoology, 129, 121 - 185.

Figures

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

FIGURE 2. Euryopis candiota n. sp. A–D. Female habitus: A, Dorsal view. B, Ventral view. C, Frontal view. D, Lateral view. Scale bars: 1 mm.

FIGURE 3. Euryopis nasuta n. sp. A–D. Male habitus:A, Dorsal view. B, Ventral view. C, Frontal view. D, Lateral view. Scale bars: 1 mm.

FIGURE 4. Euryopis nasuta n. sp. A–D. Female habitus: A, Dorsal view. B, Ventral view. C, Frontal view. D, Lateral view. Scale bars: 1 mm.

FIGURE 5. Euryopis boliviensis n. sp. A–D. Male habitus: A, Dorsal view. B, Ventral view. C, Frontal view. D, Lateral view. Scale bars: 1 mm.

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 9. Epigyna of new species of Euryopis. A, B. Euryopis candiota n. sp. A, Ventral view. B, Dorsal view, clarified. C, D. Euryopis nasuta n. sp.: C, Ventral view; D, Dorsal view, clarified. E, F. Euryopis boliviensis n. sp. E, Ventral view; F, Dorsal view, clarified. Abbreviations: CD, copulatory ducts; CO, copulatory openings; FD, fertilization ducts; SS, second pair of spermathecae; FS, first pair of spermathecae. Scale bars: 0.25 mm.