Opisthoncus serratofasciatus L. Koch, 1881

Gardzińska, Joanna & Żabka, Marek, 2013, Redescription of the genus Opisthoncus L. Koch, 1880 (Araneae: Salticidae), Zootaxa 3717 (4), pp. 401-447 : 439

Opisthoncus serratofasciatus L. Koch, 1881

( Fig. 27 )

Opisthoncus serratofasciatus: Koch L. 1881: 1233 ; Rainbow 1911: 310; Żabka 1991: 47.

Type material. 1F Holotype, ZMH, Mus. Godeffroy 7726, Australia: Sydney [NSW].

Diagnosis. Female cheliceral retromargin with two-cuspidate tooth ( Fig. 27 E). Copulatory openings relatively small, oriented mid-anteriorly, insemination ducts moderately long, with internal structures as in Fig. 27 G. In comparison with similar O. polyphemus spermathecae more distant from each other and abdominal colour pattern different.

Description. Female (cephalothorax damaged, Fig. 27 ) about 6 mm long. Cephalothorax round and moderately high (CW = 87% of CL, CH = 48% of CL), pale brown, covered with pallid scales, surrounding of eyes almost black with paler markings. Clypeus narrow, pale brown, densely covered with pallid scales and setae ( Fig. 27 D). Chelicerae brown, with dentition as in diagnosis. Endites and labium brown, with yellow anterior margins. Sternum relatively wide, yellow with brownish margins and scattered short and fine brown hairs ( Fig. 27 C). Abdomen yellow, mottled brown, with distinct longitudinal serrate pallid streak as in Fig. 27 B. Venter yellow, brown on sides, with elongate medial brown stripe ( Fig. 27 C). Spinnerets brownish. Legs I brownish, others yellow-orange. Pedipalps yellow, with orange tibiae and tarsi. Epigynal posterior notch rounded, insemination ducts coiled and looped as in Figs 27 F–G, spermathecae moderately large.

Dimensions. CL 2.80, CW 2.44, CH 1.34, AEW 1.88, PEW 1.94, EFL 0.92, AL 3.20, AW 1.92, L1 5.68 (1.60+1.32+1.32+0.88+0.56).

Male unknown.

Figures

FIGURE 27. Opisthoncus serratofasciatus L. Koch, 1881, female holotype. A: original drawings from Koch & Keyserling (1881); B – C: general appearance, dorsal and ventral views; D: clypeus; E: chelicerae, ventral view; F – G: epigyne and its internal structures. Scale bars B, C: 1 mm; F – G: 0.15 mm.