Stertinius kumadai Logunov, Ikeda & Ono, 1997

Wang, Cheng, Mi, Xiao-Qi, Irfan, Muhammad & Peng, Xian-Jin, 2020, On two species of the spider genus Stertinius Simon, 1890 from China (Araneae: Salticidae), Zootaxa 4786 (2), pp. 295-300 : 299-300

Stertinius kumadai Logunov, Ikeda & Ono, 1997 ( Figs 1 D–F, 3, 4H–J)

Stertinius kumadai Logunov, Ikeda & Ono 1997: 12 , figs 21–23, 27–30 (female holotype from Hachioji-joshi, Hachioji-shi, Tokyo, 25.VII.1991, K. Kumada leg., NSMT-Ar 3326, not examined); Ono, Ikeda & Kono 2009: 581, figs 242–247; World Spider Catalog 2020.

Material examined. CHINA: Hubei: 2 ♀ 1 ♂, Badong County, Yanduhe Township, Songziyuan Village , Waguanxi ,

30.3340°N, 110.4263°E, alt. 1340 m, 28 April 2016, Wang Liu, Chen Zeng and Tian Tian leg. (HNU-HB-20180828-

0125–HNU-HB-20180828-0127).

Description. Male (HNU-HB-20180828-0125). Total length 2.52. Prosoma 1.17 long, 1.06 wide. Opisthosoma 1.35 long, 1.26 wide. Eye sizes and interdistances: AME 0.28, ALE 0.15, PLE 0.14, AME–AME 0.02, AME–ALE 0.04, AREW 0.91, PERW 0.98, EFL 0.57. Legs: I 1.95 (0.65, 0.80, 0.26, 0.24); II 1.55 (0.51, 0.59, 0.21, 0.24); III 1.41 (0.45, 0.50, 0.22, 0.24); IV 1.73 (0.57, 0.61, 0.31, 0.24). Prosoma ( Fig. 1E ) almost quadrate, red-brown, the eyes field darker, densely covered with white setae. Fovea and radial grooves invisible. Chelicerae ( Figs 1D , 4H ) red-brown, with 2 small promarginal and 1 big retromarginal teeth. Endites ( Fig. 1D ) longer than wide, the inner side with scopulae. Labium ( Fig. 1D ) dark brown, the apex pale, with bristles. Sternum ( Fig. 1D ) red-brown, the rim covered with thin setae. Legs ( Figs 1 D–E) with setae, yellow to red-brown, leg I most robust. Opisthosoma ( Figs 1 D–E) oval, the dorsum ( Fig. 1E ) yellowish-brown, with a longitudinal band and three pairs of sigillae followed by several chevrons, covered by a scutum and white setae; the ventral side ( Fig. 1D ) pale, with three longitudinal grey stripes medially, covered by thin setae. Palp ( Figs 3 A–C, 4I–J) tibia wider than long, the retrolateral apophysis beak-shaped with blunted tip in ventral view. Cymbial process lamellar, about three times longer than wide, with an arciform margin and close to the retrolateral tibial apophysis. Bulb oval, with spermatophore duct extending along the margin. Embolus slender, arises from the plate-like base, superimposes on the surface of the bulb.

Female (HNU-HB-20180828-0126). Total length 3.23. Prosoma 1.30 long, 1.10 wide. Opisthosoma 1.98 long, 1.34 wide. Eye sizes and interdistances: AME 0.30, ALE 0.14, PLE 0.13, AME–AME 0.01, AME–ALE 0.03, AREW 0.91, PERW 1.05, EFL 0.64. Legs: I 1.96 (0.64, 0.81, 0.26, 0.25); II 1.64 (0.57, 0.56, 0.24, 0.27); III 1.58 (0.51, 0.56, 0.24, 0.27); IV 2.08 (0.71, 0.74, 0.34, 0.29). Characters of prosoma ( Fig. 1F ) similar to that of male. Opisthosoma ( Fig. 1F ) long, oval, the dorsum ( Fig. 1F ) with alternate light and brown stripes, three pairs of sigillae followed by several chevrons, covered by thin setae; the ventral side similar to that of male. Epigyne ( Figs 3 D–E) with a large transverse fold anterior-medially. Copulatory openings small, anteriorly situated. Copulatory ducts short, connected with the junction of spermathecae. Spermathecae with two chambers, the anterior pair much larger and extending toward the posterior margin of epigyne, the posterior pair round.

Distribution. Known from China (Hubei) and Japan.

Figures

FIGURE 1. A–C Stertinius fanjingensis sp. nov. (A male, dorsal view; B female, dorsal view; C male, ventral view). D–F Stertinius kumadai Logunov, Ikeda & Ono, 1997 (D male, ventral view; E male, dorsal view; F female, dorsal view). Scale bars = 0.5 mm.

FIGURE 3. Stertinius kumadai Logunov, Ikeda & Ono, 1997. A–C left male palp (A prolateral view; B ventral view; C retrolateral view); D epigyne, ventral view; E vulva, dorsal view. Scale bars = 0.1 mm.

FIGURE 4. A–G Stertinius fanjingensis sp. nov. A–B left male palp (A ventral view; B retrolateral view); C left male chelicera, posterior view; D left female chelicera, posterior view; E–G epigyne (E ventral view; F posterior view; G vulva, dorsal view). H–J Stertinius kumadai Logunov, Ikeda & Ono, 1997. H left male chelicera, posterior view; I–J left male palp (I ventral view; J retrolateral view). Scale bars = 0.1 mm.