Polyplectropus wainimbuk, Oláh & Johanson, 2010

Oláh, János & Johanson, Kjell Arne, 2010, Generic review of Polycentropodidae with description of 32 new species and 19 new species records from the Oriental, Australian and Afrotropical Biogeographical Regions 2435, Zootaxa 2435 (1), pp. 1-63 : 40

Polyplectropus wainimbuk , new species

Figures 61–63

Diagnosis: This species from the Fiji Islands ( Vanua Levu ) resembles P. vanda , new species in having simple gonopods. It is separated from P. vanda in having broader, nearly rectangular gonopods in ventral view, not apically narrowing as in P. vanda ; and the cerci are very complex, not simple.

Description: Male. Body uniformly brown. Maxillary palp formula (I,II)-IV-III-V; 3rd segment of each maxillary palp originating subapically on lateral face of segment 2. Forewing length 5.3 mm; each with discoidal cell and median cell closed; apical forks 1, 2, 3, 4, and 5 present. Hind wings each with discoidal cell open; apical forks 1, 2, and 5 present.

Male genitalia. Sternite IX obliquely elongated to fulcra, with broad basal part and short mesoapical projection narrow in lateral view ( Fig. 61 ) and broad in ventral view; sclerotized part of tergum IX membranous above fulcra; fulcrum on each side comprising base of cercus and paraproctal complex, membranous band of tergum IX connecting fulcra with membranous segment X. Segment X transparent, membranous, continuous with tergite IX; segments IX and X and sclerotized part of tergite VIII covering dorsal part of phallic apparatus. Cerci each bilobed, ventral process with serrate dorsal lobe near apex; cerci longer than gonopods. Paraproctal complexes fused with cerci, projecting anterad well before fulcra; dorsal paraproctal processes slender, arising from anterad-projecting bases of paraprocts, S-shaped, bending downwards to gonopods; paraproctal subphallic sclerite modified into pair of clavate processes, each with setose apex having enlarged setal alveoli, apical half broadened. Gonopods long, horizontal, monolobed, almost parallel-sided in lateral view ( Fig. 61 ) and ventral view ( Fig. 62 ); each with backward-directed basodorsal spine, mesal process near base invisible through sternite IX and gonopod in cleared preparations. Phallic apparatus ( Fig. 63 ) located dorsally in genitalia, guided by dorsal paraproctal processes and modified processes of subphallic sclerite; phallic apparatus comprising arching tube-like sclerotized phallotheca with dorsal lobe and membranous endotheca or endophallus located ventrally; additional sclerites not visible.

Holotype male: FIJI ISLANDS: Viti Levu : Dobuilevu, Wainimbuka River, 20.i.1971 [G.S. Robinson]— ( BMNH).

Paratypes: same data as holotype— 2 males ( OPC); Delasoi Tailevu, 28.viii.1975, M.V. light FUI 3203 [P.A. Maddison]— 1 male ( BMNH) .

Distribution: Fiji Islands.

Etymology: Wainimbuk, named after the type locality.

Figures

FIGURES 61–63. Polyplectropus wainimbuk, new species, holotype. 61—genitalia, left lateral; 62—left gonopod, ventral; 63—phallic apparatus, left lateral.