Omoedus omundseni, 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 : 28-30

Omoedus omundseni sp. nov.

Figs 125–135

Type material. Holotype: male, PAPUA NEW GUINEA: Enga Province: Kai-ingri , 5.579° S, 143.053° E, elev. 3240 m a.s.l., 7–9 July 2008, coll. W. Maddison & Manisé Kulé, WPM#08-005 ( UBC-SEM AR00122 ) . Paratypes: 1 female, same data as holotype ( UBC-SEM AR00123 ) ; 3 females in two vials, same data as holotype ; 7 males and 2 females, PAPUA NEW GUINEA: Enga Province: Kai-ingri , 5.574° S, 143.048° E, elev. 3315 m a.s.l., 5–8 July 2008, coll. W. Maddison, WPM#08-004 .

Etymology. Named after Tim Omundsen, for his assistance facilitating the 2008 expedition to Papua New Guinea.

Diagnosis. Similar to Omoedus meyeri in the presence of guanine deposits in the eye area and the genitalic structures, but differs in the markings on the abdomen ( Figs 125–130), the wider male palpal bulb ( Figs 131–132) and the wider window of the epigynum ( Fig. 134).

Description. Male (holotype, UBC-SEM AR00122). Carapace length 2.1 (variation 1.9–2.7, n=8); abdomen length 2.5. Chelicera ( Fig. 133): yellow brown; with one bicuspid promarginal tooth and one retromarginal tooth; front surface with a longitudinal ridge and a small process. Palp ( Figs 131–132): light brown. Retrolateral sperm duct loop about three quarters of bulb width. Embolus long and coiled for four circles. Palpal bulb wide. Retrolateral tibial apophysis long and thin. Measurements of legs: I 6.3, II 4.8, III 5.1, IV 4.9. Color in alcohol ( Fig. 129): carapace yellow brown, eye area with guanine deposit, lateral margins and around fovea light yellow brown; dorsal abdomen dark brown, with sandy yellow medial markings, ventral abdomen sandy yellow, with grayish brown markings; legs light yellow to yellow brown.

Female (paratype, UBC-SEM AR00123). Carapace length 2.1 (variation 2.0–2.3, n=6); abdomen length 3.0. Chelicera: with one bicuspid promarginal tooth and one retromarginal tooth. Measurements of legs: I 4.3, II 3.8, III 4.3, IV 4.4. Epigynum ( Figs 134–135): window large; median septum almost triangular with anterior part very narrow; opening to copulatory duct close to posterior end of window. Color in alcohol ( Fig. 130): similar to that of male, except the light colored markings on abdomen more distinctive.

Natural history. Specimens were found beating trees at forest edge, especially those with dark lichen-covered branches.