Taintnops Platnick

Brescovit, Antonio D. & Sanchez-Ruiz, Alexander, 2016, Descriptions of two new genera of the spider family Caponiidae (Arachnida, Araneae) and an update of Tisentnops and Taintnops from Brazil and Chile, ZooKeys 622, pp. 47-84 : 56

Taxon classification Animalia Araneae Caponiidae

Taintnops Platnick

Taintnops Platnick, 1994b: 9 (type species by original designation Taintnops goloboffi Platnick).

Diagnosis.

Members of Taintnops can be separated from other caponiids as follows: from Nopinae genera by having entire, rather than subsegmented tarsi, from Caponia , Calponia , Carajas gen n., Nasutonops gen. n. and Notnops by having only two eyes (Fig. 6B), from Diploglena and Tisentnops by the normal (rather than anteriorly expanded) palpal endites (Figs 6C, 7B), and from Caponina by the pear-shaped bulb and the short, distally situated embolus of males ( Platnick 1994b, figs 22-24) and the distinct pad of shortened setae on the distodorsal surface of the female palpal tarsus (Figs 6E, 7 D–E).

Description.

Described by Platnick (1994b), but new details from SEM data and fresh specimens are presented here. Two eyes surrounded by a black area (Fig. 6B). Clypeus with at least six pairs of long setae (Figs 6 B–C). Chelicerae (Fig. 7A) with short tooth-shaped tip on median lamina and white membranous lobe opposite the tip of the cheliceral fang. Endites acuminate, converging, not touching and not protuberant posteriorly (Figs 6C, 7B), serrula distal, with a single tooth row (Fig. 7C). Labium covered with plumose setae (Fig. 7B). Sternum oval, cuticle with long black setae (Fig. 6C). Female palp with dense patch of setae prolaterally and distinct distodorsal pad of shortened setae (Figs 6 E–F, 7 D–E). Legs pilose (Figs 6D, G), paired claws I-II with six teeth, and unpaired claw short without teeth (Fig. 7F), paired claws III-IV with five teeth (Fig. 7I), and unpaired claws short. Tarsal organ not found. Tibiae with row of five dorsal and two prolateral trichobothria; metatarsi and tarsi with two prolateral and two dorsal pairs of trichobothria, with a semicircular rim bearing few ridges (Fig. 7G), elongate and slightly sulcate sensilla (Fig. 7H). Six spinnerets in typical caponiid arrangement; anterior laterals greatly reduced and the same length as posterior laterals, females apparently with one major ampullate gland spigot and two smaller piriform gland spigots; posterior medians with single, enlarged, medially situated spigot presumed to serve the minor ampullate gland and 10-12 smaller, more peripheral spigots, arranged in a ring, presumed to serve the aciniform glands; posterior laterals with peripheral ring of 8-10 presumed aciniform gland spigots (Fig. 6 I–J). External female genitalia with weakly sclerotized anterior plate. Internal female genitalia consisting of large, oval anteromedian membranous receptaculum, and V-shaped posterior bar with wide ends (Fig. 16E; Platnick 1994b: fig. 25).