Enna osaensis, Cruz, Estevam L., Silva, Da, Viquez, Carlos & Lise, Arno A., 2012

Cruz, Estevam L., Silva, Da, Viquez, Carlos & Lise, Arno A., 2012, On the Neotropical spider genera Enna O. Pickard-Cambridge, 1897 and Syntrechalea F. O. Pickard-Cambridge, 1902 (Araneae, Lycosoidea, Trechaleidae): descriptions, taxonomic notes and new records, Zootaxa 3334, pp. 55-62: 58-59

publication ID

http://doi.org/ 10.5281/zenodo.281291

persistent identifier

http://treatment.plazi.org/id/03FF87FB-7F01-4908-FF44-FA0C1AABFE64

treatment provided by

Plazi

scientific name

Enna osaensis
status

new species

Enna osaensis  new species

Figs 5, 6View FIGURES 1 – 6. 1, 2

Type material: Holotype: female from Peninsula de Osa, Rio Agujas, Quebrada Salitre [09° 45 ”N, 83 ° 45 ’W] Puntarenas, Costa Rica, 14.II. 1998, M. Lobo, ( INBio).

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

Diagnosis. The female of E. osaensis  sp. nov. ( Fig. 5View FIGURES 1 – 6. 1, 2) resembles those of E. rothi Silva, Lise & Carico 2008  by the shape of the median field and anterior margin of the epigynum apophysis (Silva et al. 2008, p. 87, fig. 48), but can be distinguished by the presence of large accessory spermathecae ( AS) and by the rounded head of spermathecae (HS) without distal projections ( Fig. 6View FIGURES 1 – 6. 1, 2).

Description. Female (Holotype, INBio). Total length 11.97. Carapace 7.05 long and 5.05 wide, dark brown with a median light brown band. Clypeus light brown, 0.46 high. Anterior eye row straight, 1.24 wide; posterior 2.32 wide. Eye diameters, interdistances, and median ocular quadrangle: AME 0.22, ALE 0.16, PME 0.26, PLE 0.15; AME-AME 0.22, AME-ALE 0.14, PME-PME 0.66, PME-PLE 0.50, OQA 0.56, OQP 1.22, OQH 0.68. Chelicerae dark brown, bristly; promargin and retromargin of fang furrow with three teeth equidistant and equal in size.

Sternum light brown, bristly; 2.66 long, 2.79 wide. Labium light brown, slightly lighter anteriorly, 0.79 long, 1.19 wide. Legs dark brown, unmarked, relative length: IV-I-I-III, I – femur 5.98 / tibia-patella 8.91 / metatarsus 5.71 / tarsus 2.26 / total 22.86; II – 5.88 / 9.04 / 5.45 / 2.12 / 22.49; III – 5.17 / 6.91 / 4.65 / 1.72 / 18.45; IV – 6.11 / 7.98 / 6.65 / 2.66 / 23.40. Ventral pairs of macrosetae on tibiae: I- 4; II- 4; III- 3; IV- 3. Abdomen, 7.71 long, dorsum dark gray with three light brown median bands; bristly, with three pairs of sigilla. Venter light gray, with scattered setae. Epigynum with two lateral rounded projections on the middle field of epigynum ( Fig. 5View FIGURES 1 – 6. 1, 2). Head of spermathecae rounded with conspicuous and large accessory spermathecae ( Fig. 6View FIGURES 1 – 6. 1, 2).

Male. Unknown.

Distribution. Known only from the type locality in Costa Rica.

INBio

National Biodiversity Institute, Costa Rica

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Trechaleidae

Genus

Enna