Paradossenus makuxi, Cruz, Estevam L., Silva, Da & Lise, Arno A., 2011

Cruz, Estevam L., Silva, Da & Lise, Arno A., 2011, The Neotropical spider genus Paradossenus (Araneae, Trechaleidae): a new species, taxonomic notes and new records, Zootaxa 2781, pp. 63-68 : 66-67

Paradossenus makuxi new species

Figs 3, 4 , 5

Type. Female holotype from Surumu, Roraima, Brazil [4°19’N, 60°44’W], IX.1966, M. Alvarenga leg., deposited in MZSP 11594.

Etymology. The specific name is a noun, and refers to the Indian tribe Makuxi , which inhabits the Northeastern areas of Roraima, Brazil.

Diagnosis. The female of P. makuxi sp. nov. is similar to that of P. acanthocymbium Carico & Silva, 2010 ( Carico & Silva 2010: 231, figs 41, 42) in the general shape of the middle field of epigynum, the lateral lobes (LL) ( Fig. 3 ) and the presence of a flattened accessory spermathecae ( AS) ( Fig. 4 ), but can be distinguished by the larger spermathecae and by the elongated wing-shaped structures (W) ( Fig. 4 ).

Description. Female (Holotype, Surumu, Roraima, Brazil, MZSP 11594). Total length 8.54. Carapace, 3.48 long, 3.15 wide, light brown, darker laterally. Clypeus light brown, 0.26 high. Anterior eye row slightly straight, 0.90 wide; posterior 1.66 wide. Eye diameters, interdistances, and median ocular quadrangle: AME 0.18, ALE 0.12, PME 0.24, PLE 0.20; AME-AME 0.12, AME-ALE 0.10, PME-PME 0.43, PME-PLE 0.28, OQA 0.48, OQP 0.88, OQH 0.53. Chelicerae dark brown, bristly, without lateral carina; promargin and retromargin of fang furrow with three teeth equidistant and equal in size. Sternum yellowish, with scattered setae; 1.49 long, 1.57 wide. Labium light brown, darker anteriorlly, 0.74 long, 0.58 wide. Legs light brown with dark brown annuli on femora, relative length: I-II-IV-III, I—femur 4.15/ tibia-patella 5.39/ metatarsus 3.98/ tarsus 1.49/ total 15.01; II—4.16/ 5.31/ 3.56/ 1.57/ 14.60; III—2.32/ 2.73/ 2.07/ 0.83/ 7.95; IV—2.47/ 3.15/ 3.01/ 0.91/ 9.54. Ventral pairs of macrosetae on tibiae: I-4; II-3; III-3; IV-3. Abdomen, 4.98 long, light gray, bristly, with small light dots. Venter light yellow, with scattered setae. Epigynum with conspicuous lateral lobes ( Fig. 3 ) and rounded spermathecae ( Fig. 4 ).

Distribution. Known only from the type locality (Roraima, Brazil) ( Fig. 5 ).

Male. Unknown.

Figures

FIGURE 5. Distribution of Paradossenus species in Brazil.

FIGURES 1 – 4. Paradossenus pulcher Sierwald, 1993. 1 – 2. male palpus (1 ventral view, 2 retrolateral). Paradossenus makuxi sp. n. 3, 4. female epigynum (3 ventral view, 4 dorsal). (DD = dorsal division of median apophysis, ECD = ectal division of the retrolateral tibial apophysis, END = ental division of the retrolateral tibial apophysis, FD = fertilization duct, G = guide of median apophysis, S = spermathecae, VD = ventral division of median apophysis, W = wing-shaped structures).