Polyplectropus vanuatu, 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 : 32

Polyplectropus vanuatu , new species

Figures 48–50

Diagnosis: This species has very short and rounded gonopods in lateral and ventral view, and slender, elongate dorsal paraproctal processes that ventrally encircle the phallus in the coronal plane. Short, rounded gonopods occur also in P. lacusalbinae Kimmins from Australia (New South Wales), but its gonopods are rounded only in lateral view and long, triangular in ventral view. Together with the Fijian species P. manni Banks , P. fijianus Banks , and P. greenwoodi Mosely , P. vanuatu , new species, has slender and elongate dorsal paraproctal processes.

Description: Male. Body uniformly brown. Maxillary palp formula (I,II)-IV-III-V, 3rd segment of each maxillary palp originating subapically on lateral face. 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 2 and 5 present.

Male genitalia. Sternite IX ( Fig. 48 ) obliquely elongated on each side to fulcrum; narrow, weakly sclerotized, parallel-sided and obliquely directed tergite IX running on each side from fulcrum where cercus and paraproctal complex meet; groove or pronounced demarcation invisible between sternite IX and tergite IX. Segment X transparent, membranous dorsally; ventrally with well-sclerotized, elongate cover present along dorsum above phallic apparatus; this cover projecting anterad to anterior end of paraproctal complex. Cerci elongate, foliaceous, longer than gonopods. Paraproctal complexes fused to cerci, projecting anterad well before fulcra. Dorsal paraproctal processes thin, arising anteriorly of paraprocts, encircling phallic apparatus, ending on opposite sides; paraproctal subphallic sclerite modified into pair of clavate processes with setose apices. Gonopods short, rounded in lateral and ventral views ( Fig. 49 ), with straight dorsum in lateral view. Phallic apparatus ( Fig. 50 ) located dorsally in genitalia, fixed by dorsal paraproctal processes and modified processes of subphallic sclerites; phallic apparatus comprising arching, tube-like, sclerotized phallotheca and membranous endotheca or endophallus, without visible sclerites.

Holotype male: VANUATU: Aneityum Island , 1 mi N Andgauhaut, small river. 23.vii.1971, light [G. S. Robinson]—( BMNH, B.M. 1981-549).

Distribution: Vanuatu.

Etymology: Vanuatu, after the type locality.

Figures

FIGURES 48–50. Polyplectropus vanuatu, new species, holotype. 48—genitalia, left lateral; 49—left gonopod, ventral; 50—phallic apparatus, left lateral.