Enna caricoi, Cruz, Estevam L., Silva, Da & Lise, Arno A., 2011

Cruz, Estevam L., Silva, Da & Lise, Arno A., 2011, Seven new species of Enna (Araneae: Trechaleidae) from Central and South America, Zootaxa 2919, pp. 60-68 : 64

Enna caricoi new species

Figs 5, 6 , 9–11

Type. Male holotype from San Pablo, San Pedro, Colombia [10°03’07.73”N, 75°16’07.27’W], 13.V.1975, J. A. Kochalka ( MCTP 8869).

Etymology. The specific name is a patronym in honor of the late arachnologist James E. Carico, who made many contributions to the taxonomy of the Trechaleidae .

Diagnosis. The male of E. caricoi sp. nov. resembles those of E. redundans (Platnick, 1993) by the long and acute guide (G) of the median apophysis ( Silva et al. 2008, p. 107, fig. 153), but can be distinguished by the slender and curved tip of the guide (G) ( Fig. 5 ), by the presence of a lateral tooth-like projection on the dorsal division (DD) of the median apophysis ( Figs 9, 10 ) and by the short and rounded tip of the ectal division (ECD) of the retrolateral tibial apophysis ( Fig. 6 ).

Description. Male (Holotype, San Pablo, San Pedro, Colombia, MCTP 8869). Total length 7.63. Carapace 3.75 long, 2.82 wide, light brown, darker laterally; small dark brown bristles laterally; fovea with dark mark. Clypeus light brown, 0.30 high. Anterior eye row straight, 0.90 wide; posterior 1.60 wide. Eye diameters, interdistances, and median ocular quadrangle: AME 0.16, ALE 0.14, PME 0.26, PLE 0.24; AME-AME 0.14, AME-ALE 0.08, PME-PME 0.36, PME-PLE 0.20, OQA 0.42, OQP 0.84, OQH 0.52. Chelicerae reddish-brown, with small light brown setae; lateral carina conspicuous, depressed distally, near the fangs; promargin and retromargin of fang furrow with three teeth equidistant and equal in size. Sternum light brown, scattered setae; 1.92 long, 1.86 wide. Labium light brown, whitish distally, 0.62 long, 0.68 wide. Legs light brown, scattered dark brown spots on femora, relative length: II-IV-I-III. Leg measurements: I—femur 5.97/ tibia-patella 7.63/ metatarsus 7.96/ tarsus 2.15/ total 23.71; II—6.64/ 10.77/ 8.38/ 2.82/ 28.61; III—4.81/ 5.81/ 4.98/ 0.99/ 16.59; IV—6.80/ 9.57/ 7.71/ 1.82/ 25.90. Ventral pairs of macrosetae on tibiae: I-4; II-4; III-3; IV-3. Superior tarsal claw with eight teeth and inferior tarsal claw with one tooth ( Fig. 11 ). Abdomen 3.98 long, grayish, dorsum with a median light brown band and two pairs of sigilla. Venter grayish, with scattered setae. Palpus with a prominent and acute guide (G) on the dorsal division of the median apophysis ( Fig. 5 ). Retrolateral tibial apophysis short with a rounded ectal division (ECD) ( Fig. 6 ).

Distribution. Known only from the type locality (San Pablo, San Pedro, Colombia).

Female. Unknown.

Figures

FIGURES 1 – 8. Enna carinata sp. nov. 1, 2. male palpus (1 ventral, 2 retrolateral). Enna triste sp. nov. 3, 4. male palpus (3 ventral, 4 retrolateral). Enna caricoi sp. nov. 5, 6. male palpus (5 ventral, 6 retrolateral). Enna venezuelana sp. nov. 7, 8. female epigynum (7 ventral, 8 dorsal). (DD, dorsal division of the median apophysis; ECD, ectal division of the retrolateral tibial apophysis; FD, fertilizations ducts; HS, head of spermathecae; LL, lateral lobe; LLA, lateral lamella; MF, middle field of epigynum; ST, subtegulum; T, tegulum; VD, ventral division of the median apophysis).

FIGURES 9 – 11. Enna caricoi sp. nov. 9, 10. male palpus (9 ventral, 10 detail of median apophysis). 11. detail of tarsal claw of right leg II. (DD, dorsal division of the median apophysis; G, guide of median apophysis ST, subtegulum; T, tegulum).