Revision of the Neotropical spider genus Enna (Araneae, Lycosoidea, Trechaleidae)

Abstract

The spider genus Enna is revised and the five previously known species [E. estehcmemis (Simon 1898) (Venezuela), £■. /»///«;/ (Simon 1898) (Panama, Colombia), E. minor Petrunkevitch 1925 (Panama, Colombia), E. nesioles Chamberlin 1925 (Panama) and E. velo.x O. Pickard-Cambridge 1897 (type species) (Mexico)] are redescribed. Dossmus rediiiulans Platnick, 1993 is transferred to Enna and is redescribed and illustrated. Descriptions of 18 new species include the following: E. haeza (Ecuador), E. hartica (Guyana), E. braslandia. (Brazil), E. honaldoi (Brazil) E. caliensis (Colombia), E. chickeringi (Honduras), E. colonche (Ecuador), E. eberhardi (Costa Rica, Panama), E. harct (Peru), E. biunmco (Peru), E. Iinarinillu (Bolivia), E. igarape (Brazil), E. knyuwiniensis (Guyana), E. nuiyu (Honduras, Panama), E. paraensis (Brazil), E. pecki (Costa Rica), E. riolopo (Ecuador) and E. rothi (Ecuador). The type of E. approxinuita (O. Pickard-Cambridge), collected in Bugaba, Panama, is based on a juvenile and is considered as a nonien dubiicm. Similarities in the geographical distributions of species of Enna with the distributions of species in the genera Trechalea and Hesydrus are noted.

Taxonomic review of the Neotropical spider genus Paradossenus (Araneae: Lycosoidea: Trechaleidae: Trechaleinae) with a new erection of the subfamily Trechaleinae and a key to included genera

“…The nomenclature and anatomy of the male palpus and female epigynal structures follows Carico (1993), Silva et al (2008) and Sierwald (1993). Abbreviations are used throughout the manuscript: AE, anterior eyes, or length of anterior eye row; AF, anterior field of epigynum; ALE, anterior lateral eyes; AME, anterior median eyes; AS, accessory spermathecae; CO, copulatory ducts; D, duct; DD, dorsal division of median apophysis; E, embolus; ECD, ectal division of retrolateral tibial apophysis (RTA); END, ental division of 1 Deceased 24 March 2009 RTA; G, guide, terminal portion of median apophysis; HS, head of spermathecae; LL, lateral lobes of epigynum; MA, median apophysis; MF, middle field of epigynum; OQA, anterior part of ocular quadrangle, or length of line composed of anterior median eyes; OQH, ocular quadrangle height, or length of a line composed of anterior median eye and posterior median eye; OQP, posterior part of ocular quadrangle, or length of line composed of posterior median eyes; PE, posterior eyes, or length of posterior eye row; PLE, posterior lateral eyes; PME, posterior median eyes; RTA retrolateral tibial apophysis of male palpal tibia; S, spermathecae; ST, subtegulum; T, tegulum; VD, ventral division of median apophysis; VP, ventral protuberance of male palpal tibia; W, wings.…”

“…Female builds discoid and flattened egg sac, fixed and carried on the spinnerets (Carico 1993;Silva et al 2008). …”

On the taxonomy of Trechaleidae (Araneae: Lycosoidea) from Colombia and Peru

“…The specific name is a noun in apposition and refers to the type locality. Silva, Lise & Carico, 2008 Enna maya Silva, Lise & Carico, 2008: 85 figs 12 and 13) by the bifurcated apex of the ectal division of the retrolateral tibial apophysis (Fig. 12), but can be distinguished by the absence of a pointed spur on the apex of the guide of the median apophysis (Fig.…”

On the taxonomy of Trechaleidae (Araneae: Lycosoidea) from South America

“…The genus Enna was recently revised by Silva et al (2008), and this genus is now considered the most diverse in the family Trechaleidae, with 24 known species occurring from Mexico to southern Brazil (Platnick 2009). Most of the species occur in Central America.…”

“…5), which is concave and ends in an acute guide, and by the tarsi and metatarsi, which are short and straight when compared to the long and flexible tarsi of Trechalea Thorell 1869 and Trechaleoides Carico 2005. The middle field of the female epigynum is conspicuous, hood-like, concave beneath, and comprises part of the dorsal rim of the epigastric furrow (Silva et al 2008).…”