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
Author
Cruz, Estevam L.
Author
Silva, Da
Author
Viquez, Carlos
Author
Lise, Arno A.
text
Zootaxa
2012
3334
55
62
journal article
10.5281/zenodo.281291
afd83487-f54f-4143-8481-4bf90f9aa1d7
1175-5326
281291
Enna osaensis
new species
Figs 5, 6
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. 5
) 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. 6
).
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. 5
). Head of spermathecae rounded with conspicuous and large accessory spermathecae (
Fig. 6
).
Male.
Unknown.
Distribution.
Known only from the
type
locality in
Costa Rica
.