Canama triramosa, Zhang & Maddison, 2012

Zhang, Jun-Xia & Maddison, Wayne P., 2012, New euophryine jumping spiders from Papua New Guinea (Araneae: Salticidae: Euophryinae) 3491, Zootaxa 3491, pp. 1-74 : 18-20

Canama triramosa sp. nov.

Figs 77–90

Type material. Holotype: male, PAPUA NEW GUINEA: Eastern Highlands Province: Mt. Gahavisuka Provincial Park , 6.016° S, 145.417° E to 6.017° E, 145.416° E, elev. 2450–2490 m a.s.l., 2 August 2008, coll. W. Maddison, WPM#08-027 ( UBC-SEM AR00088 ) . Paratypes: 1 female, same data as holotype ( UBC-SEM AR00089 ) ; 1 female, same data as holotype ; 1 female, PAPUA NEW GUINEA: Eastern Highlands Province: Mt. Gahavisuka Provincial Park , 6.015° S, 145.412° E, elev. 2320 m a.s.l., 1–2 August 2008, coll. W. Maddison, WPM#08-025 .

Etymology. The specific epithet is from the combination of the prefix tri- (three) and the Latin ramosa (branched), and refers to the large three-forked tooth on the promargin of male chelicerae.

Diagnosis. Differs from other species by the unique three-branched promarginal tooth and the one large and wide retromarginal tooth on the male chelicera ( Figs 86–87). Similar in male palpal structure to Canama forceps (Doleschall) (see Prószyṅski 1984, 1987), but can be easily distinguished by the shorter and wider male chelicera ( Figs 86–87), the tooth pattern on the male chelicera ( Figs 86–87), the wider palpal bulb and the shape of the retrolateral tibial apophysis of the male palp ( Figs 83–85). Female is similar to C. extranea , but differs in the absence of dark markings in the eye area ( Figs 80, 82), the thicker and less convoluted copulatory duct of the vulva ( Fig. 90).

Description. Male (holotype, UBC-SEM AR00088). Carapace length 2.1; abdomen length 2.5. Chelicera ( Figs 86–87): yellow brown; robust with a tri-forked big tooth on promargin and an axe-like tooth on retromargin. Palp ( Figs 83–85): yellowish to brownish. Cymbial distal groove more retrolateral. Proximal tegular lobe absent. Embolus long and coiled for about two circles. Retrolateral tibial apophysis finger-like. Femur of palp curved. Tibia of first leg with three pairs of ventral macrosetae; metatarsus with two pairs. Measurements of legs: I 6.5, II 5.1, III 5.6, IV 4.8. Color in alcohol ( Fig. 81): carapace yellowish, eye area light orange; abdomen grayish without distinct markings; legs light yellow with yellow brown annuli. Body more greenish when alive ( Figs 77–79).

Female (paratype, UBC-SEM AR00089). Carapace length 2.0 (variation 2.0–2.2, n=3); abdomen length 3.2. Chelicera ( Fig. 88): with a long bicuspid retromarginal tooth. Tibia of first leg with three pairs of ventral macrosetae; metatarsus with two pairs. Measurements of legs: I 4.2, II 3.7, III 4.7, IV 4.4. Epigynum ( Figs 89–90): window with a narrow median septum; opening at posterior end of window close to median septum. Copulatory duct long and convoluted with a gland-like process near the beginning. Color in alcohol ( Fig. 82): similar to that of male, but eye area of carapace yellow, abdomen orange with symmetrical gray markings. Body more greenish when alive ( Fig. 80).