Thiratoscirtus spinifer Wiśniewski & Wesołowska, 2024, sp. nov.
Year: 2024
Type: other
Abstract: Thiratoscirtus spinifer sp. nov. urn:lsid:zoobank.org:act: 65BBB4DC-4A68-41DE-9203-C8A4CED48B77 Figs 88–89 Diagnosis The male of this species is distinctive by the presence of a stout spine on the retrolateral side of the cymbium.The palp is slightly similar to that in Thiratoscirtus mastigophorus Wiśniewski & Wesołowska, 2013, but the embolus in the newly described species is clearly longer (one and a half times surrounding the bulb, while in the latter species the embolus forms an incomplete circle) and with a bicuspid tibial apophysis (pointed in the other species). Etymology The specific name refers to the presence of a conspicuous thorn on the cymbium. Material examined Holotype UGANDA • ♂; Ruwenzori, Bundibugyo; 0°43′ N, 30°03′ E; 1050 m a.s.l.; 1952; G.O. Evans leg.; NHM. Other material UGANDA • 1 ♂; same collection data as for holotype (specimen incomplete, with only one palp, the thorn broken off); NHM. Description Male General appearance as in Fig. 88A–B. MEASUREMENTS. Cephalothorax length 2.6, width 2.1, height 1.2. Eye field length 1.3, anterior width 1.7, posterior width 1.8. Abdomen length 2.5, width 1.6. CARAPACE. Oval, brown, fovea clearly marked, eyes with black rings. Dorsum covered with faint transparent hairs, sides with white stripes, some longer bristles near eyes, a few white hairs between anterior median eyes. Chelicera long, unidentate. Mouthparts brown with light tips, sternum yellow. ABDOMEN. Ovoid, yellowish with mosaic composed of brownish marks, posteriorly traces of light chevrons (Fig. 88B). Venter yellowish with four lines of dark dots. Some brown bristles on anterior abdominal edge. Spinnerets yellowish. LEGS. Yellow, only first pair brown with dark tibiae and metatarsi. Leg hairs and spines brown, ventral spines on metatarsus I long. PALPS. Yellow. Cymbium with tutaculum and stout spine on retrolateral side (Figs 88F–G, 89B–C). Palpal tibia broad basally and abruptly pointed (Figs 88F, 89B). Bulb rounded, embolus long, one and a half times surrounding the bulb (Figs 88D–E, 89A). Female Unknown.
Authors: Wiśniewski, Konrad, Wesołowska, Wanda
Institutions: Uniwersytet Pomorski w Słupsku, University of Wrocław
Language: English
Subfield: Genetics
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W6911877894
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