Shuqiangius Wang, Marusik & Yao, 2025

Genus Shuqiangius Wang, Marusik & Yao gen. nov.

Type species.

Shuqiangius rarobulbus (Lo, Cheng & Lin, 2024) , comb. nov.

Etymology.

The generic name is dedicated to Prof. Shuqiang Li ( Anhui, China) who has contributed much to our understanding of spider taxonomy. A masculine noun in nominative case.

Diagnosis.

The new genus resembles Hamadruas Deeleman-Reinhold, 2009 ( Deeleman-Reinhold 2009) by having similar embolus (E) forming 360 ° loop and terminating almost in center of bulb, and round spermatheca (S), but can be distinguished by the tip of cymbium longer than wide (vs wider than long) and by the presence of distinct posterior pocket (PP; vs absent). Males of this new genus can be distinguished from those of all other genera except for Peucetia Thorell, 1869 by the tip of cymbium longer than wide (vs wider than long or as long as wide). Males of this new genus can be distinguished from those of Peucetia by the absence of paracymbium (vs present). Females can be distinguished from those of other genera (including Peucetia ) by having a long epigynal atrium ca 1.5 × longer than wide (vs absent or wider than long), distinct posterior pocket (vs lacking), atrium with a thin, septum-like stripe of setae centrally and more numerous posteriorly (vs setae lacking or not documented) ( Blackwall 1858; Simon 1866, 1885, 1898 a, 1898 b; Keyserling 1887; Thorell 1895; Rainbow 1915; Brady 1964; Deeleman-Reinhold 2004, 2009).

Description.

Male: Total length 3.70–4.35. Carapace egg-shaped, length / width ratio 1.16 or 1.29, brownish or yellowish brown, covered with white setae. Radial furrows indistinct and fovea longitudinal. In dorsal view, eyes with AER strongly recurved and PER strongly procurved (Fig. 2 A View Figure 2 ). Chelicerae brown or yellowish brown, with one promarginal and one retromarginal teeth. Endites yellowish or dark brown. Sternum brown or dark brown, length / width ratio ca 1.28. Legs yellowish, clothed with several long spines on femur, patella, tibia, and metatarsus (Fig. 2 A, B View Figure 2 ). Leg formula: I> II> III> IV. Abdomen oval, covered dense, white setae (Fig. 2 A, B View Figure 2 ). Cardiac mark indistinct (Fig. 2 A, B View Figure 2 ).

Palp as in Figs 3 A – D View Figure 3 , 4 A – C View Figure 4 ; femur length / width ratio 3.43; patella length / width 0.28 / 0.21; tibia wider than long, with three apophyses. Retrolateral tibial apophysis ( RTA) large and twisted; ventral tibial apophysis (VTA) digitiform or pointed. Tip of cymbium as long as wide or longer than wide. Tegular lobe ( TL) small / lacking. Conductor (C) long and wide, with membranous base, tip bend and point toward proximal. Embolus (E) very long forming 360 ° loop and terminating almost in center of bulb, base of embolus (E) large located in retrolateral half of bulb.

Female: Total length 4.90–5.77. Carapace egg-shaped, length / width ratio 1.19–1.24, brown, covered with white setae, except for medially. Sternum length / width ratio 1.19–1.21. Abdomen from light to almost uniformly brown; venter with broad, dark, median band from epigastric furrow to spinnerets, and light yellowish bands along median band (Fig. 5 A – F View Figure 5 ).

Epigynes and Endogynes as in Fig. 6 A – F View Figure 6 ; epigynal plate about as wide as long, with large entirely rebordered atrium, 1.5 times longer than wide, widest in anterior 1 / 5; posteriorly with distinct pocket (PP); medially atrium with kind of septum (not rebordered, just raised median part). Copulatory openings (CO) anteriorly situated. Copulatory ducts (CD) curved. Fertilization ducts (FD) slender with hook-like terminal.

Distribution.

China ( Sichuan; Taiwan, type locality; Fig. 1 View Figure 1 ).

Composition.

S. rarobulbus (Lo, Cheng & Lin, 2024) , comb. nov. and S. chuan Wang, Marusik & Yao , sp. nov.