Enna venezuelana, 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: 64-65

publication ID

http://doi.org/ 10.5281/zenodo.206513

persistent identifier

http://treatment.plazi.org/id/039E87E0-D37D-D149-1CAB-FA0DCDAE36F0

treatment provided by

Plazi

scientific name

Enna venezuelana
status

new species

Enna venezuelana  new species

Figs 7, 8View FIGURES 1 – 8

Type. Female holotype from Tach, 20 km from San Cristo, Venezuela [10 ° 30 ’00.22”N, 66 ° 55 ’00.13’W], 20– 22.V. 1974, S. Peck ( MCZ).

Etymology. The specific name is a noun and refers to the type locality.

Diagnosis. The females of E. venezuelana  sp. nov. resembles those of E. baeza Silva, Lise & Carico, 2008  by the general shape of the middle field (MF) of the epigynum ( Silva et al. 2008, p. 93, fig. 79), but can be distinguished by the presence of conspicuous lateral lobes (LL) ( Fig. 7View FIGURES 1 – 8) and by the absence of distal projections on the head of spermathecae ( Fig. 8View FIGURES 1 – 8).

Description. Female (Holotype, Tach, Venezuela, MCZ). Total length 9.51. Carapace, 4.15 long, 3.56 wide, light brown, darker laterally; fovea with dark mark. Clypeus light brown with small dark bristles anteriorly, 0.36 high. Anterior eye row straight, 0.98 wide; posterior 1.78 wide. Eye diameters, interdistances, and median ocular quadrangle: AME 0.20, ALE 0.16, PME 0.26, PLE 0.28; AME-AME 0.12, AME-ALE 0.10, PME-PME 0.44, PME-PLE 0.34, OQA 0.46, OQP 0.96, OQH 0.62. Chelicerae reddish-brown, bristly; promargin and retromargin of fang furrow with three teeth equidistant and equal in size. Sternum yellow, scattered setae; 1.90 long, 1.99 wide. Labium dark brown, light distally, 0.58 long, 0.74 wide. Legs light brown with dark brown spots on femora, relative length: IV-I-II-III. Leg measurements: I—femur 5.58 / tibia-patella 7.98 / metatarsus 5.98 / tarsus 2.52 / total 22.06; II— 6.11 / 5.98 / 5.85 / 2.26 / 20.20; III— 5.32 / 5.95 / 4.78 / 1.72 / 17.77; IV— 5.98 / 7.71 / 6.65 / 2.22 / 22.56. Ventral pairs of macrosetae on tibiae: I- 4; II- 4; III- 3; IV- 3. Abdomen 5.22 long, dark brown with two pairs of sigilla. Venter grayish, unmarked. Middle field of the epigynum (MF) with a small, short scape-like projection ( Fig. 7View FIGURES 1 – 8). Head of spermathecae rounded and with conspicuous fertilization ducts (FD) ( Fig. 8View FIGURES 1 – 8).

Distribution. Known only from the type locality (Tach, Venezuela).

Male. Unknown.

MCZ

Museum of Comparative Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Trechaleidae

Genus

Enna