Attacobius uiriri Bonaldo & Brescovit, 2005

Pereira-Filho, José Moisés B., Saturnino, Regiane & Bonaldo, Alexandre B., 2018, Five new species and novel descriptions of opposed sexes of four species of the spider genus Attacobius (Araneae: Corinnidae), Zootaxa 4462 (2), pp. 211-228 : 223-224

Attacobius uiriri Bonaldo & Brescovit

Figs 16–18 ; Map 2

Attacobius uiriri Bonaldo & Brescovit, 2005: 51 , figs 9–10 (♂ holotype from Parque Estadual da Serra das Andorinhas, São Geraldo do Araguaia, Pará, Brazil, 28.III.2000, I. S. Gorayeb et al. leg. ( MPEG 0150 ), re-examined.

Diagnosis. Females of A. uiriri are similar to those of A. demiguise n. sp. and A. blakei ( Figs 13, 15 , 19, 21 ) by the medially interrupted epigynal ventral plate. They can be distinguished from those of A. demiguise n. sp. by the absence of secondary spermathecae, and from those of A. blakei by the wider copulatory ducts ( Fig. 16–18 ).

Description. Male. Described by Bonaldo & Brescovit (2005: 51, figs 9¯10).

Female (MPEG 34852). Carapace dark yellow, with black spot on each anterior median eye area; chelicerae dark yellow with fangs brown; endites yellow with white apex; labium yellow; sternum yellow with brown margins; legs dark yellow; abdomen pale grey. Total length 5.24. Carapace 2.00 long, 1.70 wide, 0.91 high. Clypeus 0.14 high. Eye diameters and interdistances: AME 0.11, ALE 0.09, PME 0.12, PLE 0.11; AME–AME 0.09, AME–ALE 0.01, PME–PME 0.16, PME–PLE 0.08, ALE–PLE 0.03. MOQ length: 0.26, front width: 0.29, back width: 0.31. Chelicerae 0.80 long, with 3 promarginal and 2 retromarginal teeth. Sternum 1.07 long, 1.11 wide. Abdomen 3.42 long, 2.37 wide. Leg measurements: I: femur 1.94/ patella 0.72/ tibia 1.81/ metatarsus 1.87/ tarsus 1.36/ total 7.70. II: 1.85/ 0.78/ 1.67/ 1.83/ 1.29/ 7.42. III: 1.76/ 0.68/ 1.56/ 1.89/ 1.39/ 7.28. IV: 2.16/ 0.70/ 1.89/ 2.21/ 1.50/ 8.46. Leg spination: I: femur d1-1-0, p0-0-1, r0, v0; tibia d0, p0, r0, v3-2 -2; metatarsus d0, p0, r0, v2-2 -0. II: femur d1-1-0, p0, r0, v0; tibia d0, p0, r0, v2-2 -2; metatarsus d0, p0, r0, v2-2 -0. III: femur d1-1-0, p0, r0, v0; tibia d0, p0, r0, v0; metatarsus d0, p0, r0, v0. IV: femur d1-1-0, p0, r0-0-1, v0; tibia d0, p0, r0, v0; metatarsus d0, p0, r0, v0. Epigynum: ventral surface medially excavated; ventral plate medially interrupted; posterior transverse septum absent; dorsal extension of epigynal posterior plate reduced; copulatory openings ventral, medially placed; copulatory ducts translucent, spermathecae separated from each other; primary spermathecae large, sub-triangular; secondary spermathecae absent ( Figs 16–18 ).

Distribution. Known only from Parque Estadual da Serra das Andorinhas, Pará, Brazil (Map 2).

Material examined. BRAZIL: Pará: São Geraldo do Araguaia, Parque Estadual da Serra das Andorinhas, 06°13'10.47"S, 48°26'17.97"W, 1♀, 30.X-7.XI.2011, A.B. Bonaldo et al. leg. ( MPEG 34852 ); (Vila Santa Cruz) [06°13'03.29"S, 48°26'32.63"W], 1♂, 23-29.X.2011, S.S. Silva leg. ( MPEG 34851 ).

Figures

FIGURES 13–18. Attacobius spp., female epigyna: 13–15. A. demiguise n. sp., 13. ventral view, 14. posterior view, 15. dorsal view; 16–18. A. uiriri Bonaldo & Brescovit, 2005, 16. ventral view, 17. posterior view, 18. dorsal view. Abbreviations: CD, copulatory duct; FD, fertilization duct; PS, primary spermathecae; SS, secondary spermathecae.

FIGURES 19–24. Attacobius spp., female epigyna: 19–21. A. blakei Bonaldo & Brescovit, 2005, 19. ventral view, 20. posterior view, 21. dorsal view; 22–24. A. tremembe n. sp., 22. ventral view, 23. posterior view, 24. dorsal view. Abbreviations: CD, copulatory duct; EVP, epigynal ventral plate; FD, fertilization duct; PS, primary spermathecae; SS, secondary spermathecae.