Opisthoncus sexmaculatus (C. L. Koch, 1846)

Gardzińska, Joanna & Żabka, Marek, 2013, Redescription of the genus Opisthoncus L. Koch, 1880 (Araneae: Salticidae), Zootaxa 3717 (4), pp. 401-447 : 442

Opisthoncus sexmaculatus (C. L. Koch, 1846)

( Fig. 28 )

Plexippus sexmaculatus: Koch 1846: 119 . Gangus sexmaculatus: Simon 1903: 700 .

Opisthoncus sexmaculatus: Żabka, 1991: 47 .

Type material. 1F Holotype, ZMB, 1733, Australia: New Holland [NSW], N. Holland occ., Preiss.

Diagnosis. Copulatory openings relatively small, oriented mid-anteriorly, insemination ducts moderately long, with internal structures as in Fig. 28 D. Differs from similar O. polyphemus and O. serratofasciatus by position of spermathecae and colour pattern of abdomen.

Description. Female ( Fig. 28 ). Cephalothorax round, pale brown, eye field dark brown, covered with greyish and yellow scales and hairs. Surrounding of eyes almost black. Clypeus pale brown, densely covered with numerous pallid scales and setae. Chelicerae brown. Endites and labium brown, with yellow anterior margins. Sternum relatively wide, yellow. Abdomen mottled orange, with longitudinal pallid streak and transverse orange stripes, separated by almost black patches, covered with yellow scales and brownish hairs ( Fig. 28 B). Venter pallid. Spinnerets almost black. Legs yellow-brownish. Epigyne as in Figs 28 C–D (walls of spermathecae strongly sclerotized, accessory glands rather invisible).

Dimensions. (not measured).

Male unknown.

Figures

FIGURE 28. Opisthoncus sexmaculatus (C. L. Koch, 1846), female holotype. A: characters by Koch (1846); B: abdomen, dorsal view; C – D: epigyne and its internal structures.