Enna O. Pickard-Cambridge 1897

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 : 61

Genus Enna O. Pickard-Cambridge 1897

Enna O. Pickard-Cambridge 1897: 232 , figs 13a–c.

Type species. Enna velox O. Pickard-Cambridge 1897 , by original designation.

Diagnosis. This genus resembles Dossenus Simon, 1898 by the general shape of the dorsal division of the median apophysis, which is concave and ends in an acute guide ( Silva et al., 2008, figs 9, 10), and by the tarsi and metatarsi that are short and straight compared to the long and flexible tarsi of Trechalea Thorell, 1869 and Trechaleoides Carico, 2005 . The dorsal division of the median apophysis is always larger than the ventral division and is usually concave. The guide of the distal portion of the dorsal division of the median apophysis is curved, directed retrolaterally, and narrowed to an acute point. The ventral division of the median apophysis is absent or extremely reduced, e.g., E. estebanensis , E. colonche sp. nov. and E. caliensis sp. nov. ( Silva et al., 2008, figs 58, 59, 67, 81, 82). The ectal division of the retrolateral tibial apophysis is prominent, generally with a small lateral translucent but sclerotized projection (LP, Silva et al., 2008, fig. 1). The middle field of the epigynum is conspicuous, hood-like, concave beneath, and comprises part of the dorsal rim of the epigastric furrow. Internally, each side of the epigynum has a large, conspicuous globose dorsal spermatheca and a small ventral spermatheca ( Silva et al., 2008, fig. 2).