Bocusoides, Wang & Li, 2022

Wang, Cheng & Li, Shuqiang, 2022, On eleven species of jumping spiders from Xishuangbanna, China (Araneae, Salticidae), ZooKeys 1116, pp. 85-119 : 85

Genus Bocusoides gen. nov.

Type species.

Bocusoides zhaoi sp. nov. from China.

Etymology.

The generic name is the combination of “oides”, meaning "having the form of", and the similar genus name Bocus ; gender masculine.

Diagnosis.

Bocusoides gen. nov. can be easily distinguished from other genera of Myrmarachnina, except Bocus Peckham & Peckham, 1892, by having an elongated carapace with an obvious postocular constriction and an anteriorly broadened sternum. It can be distinguished from Bocus by the following: 1) male cheliceral paturon abruptly broadened at base (Fig. 2C-E, G ; Deeleman-Reinhold and Floren 2003: fig. 9) versus gradually broadened from the base to the middle part in Bocus ( Wanless 1978a: fig. 1C, 2B); 2) carapacal postocular constriction narrower, about 1/2 the carapacal width (Fig. 2C, F ; Deeleman-Reinhold and Floren 2003: fig. 9) versus broader, about 2/3 the carapacal width in Bocus ( Wanless 1978a: figs 1A, 2A); 3) pedical with conical, dorsal process (Fig. 2D ; Deeleman-Reinhold and Floren 2003: fig. 11) versus absent in Bocus ( Wanless 1978a: figs 1H, 2D); 4) leg formula 4123 versus 4132 in Bocus (see the description by Wanless 1978a); 5) male abdomen not constricted (Fig. 2C ; Deeleman-Reinhold and Floren 2003: fig. 9) versus constricted at anterior 1/3 in Bocus ( Wanless 1978a: figs 1A, 2A); 6) male palp with short tibia, which is wider than long and with filiform embolus with proximal disc (Fig. 1D ; Deeleman-Reinhold and Floren 2003: fig. 13) versus tibia longer, at least as long as wide, and flat embolus without proximal disc in Bocus ( Wanless 1978a: fig. 3A, E); 7) epigyne with distally circled copulatory ducts, elongated spermathecae, and elongated, arched fertilization ducts (Fig. 2A, B ; Deeleman-Reinhold and Floren 2003: fig. 17) versus copulatory ducts not circled, spermathecae spherical, and fertilization ducts ordinary in Bocus ( Wanless 1978a: fig. 1G).

Description.

Medium-sized, ant-like spiders. Carapace elongated. Pedicel short, with dorsal, conical process. Chelicerae well developed and with paturon abruptly broadened at base in males. Endites longer than wide, distally bearing dense, dark setae. Labium slightly darker than endites. Sternum irregular, anteriorly broadened. Legs elongated, with 11 and five ventral spines on tibiae and metatarsi I, respectively. Abdomen oval, not constricted; dorsum with white guanine patches or yellow-sliver spots at the lateral sides of anterior half, and alternate dark and paler transverse bands posteriorly, entirely covered by scutum in males; venter dark-brown.

Palp: tibia wider than long, with tapered, short retrolateral apophysis and triangular flange; cymbium flat, setose, with an apical spine; bulb flat and almost round, with tapered sperm duct extending along the submargin; embolus twice coiled, the first forming a broad, flat circle, the second with an elongated, lamellar disc followed by filiform remainder.

Epigyne: with posteriorly located hood; atria paired, oval, medially located, with arched lateral ridges; copulatory openings hidden; copulatory ducts membranous at origin, followed by sclerotized portion ascending obliquely, distally coiled four circles, which are encircling or lateral to the elongated spermathecae; fertilization ducts slender, arched, originating from the anterior portions of spermathecae.

Composition.

The genus currently includes the type species and B. angusticollis (Deeleman-Reinhold & Floren, 2003) comb. nov.

Figures

Figure 1. Bocusoides zhaoi sp. nov., male holotype palp A prolateral B retrolateral C ventro-lateral D ventral E dorsal. Scale bars: 0.1.

Figure 2. Bocusoides zhaoi sp. nov., male holotype and female paratype A epigyne, ventral B vulva, dorsal C male holotype habitus, dorsal D ditto, lateral E ditto, ventral F female paratype habitus, dorsal G holotype chelicera, posterior H female paratype chelicera, posterior. Scale bars: 0.1 (A, B, G, H); 0.5 (C-F).