Polyplectropus coronivia, 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 : 32-34

Polyplectropus coronivia , new species

Figures 51–52

Diagnosis: This species has slender and elongate dorsal paraproctal processes as well as a modified, digitiform, and clavate subphallic sclerite. It is very similar to P. fijianus Banks from Vanua Levu but is distinguished by having truncated cerci and gonopods; moreover the gonopods project more posterad than in P. fijianus . The ventral branch of each cercus is broad and directed upward, but is narrow, slender and directed backward in P. fijianus .

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 1, 2, and 5 present.

Male genitalia. Sternite IX obliquely elongated on each side to fulcrum; basal part broad, with small mesoapical projection ( Fig. 51 ); tergum IX membranous above fulcrum; fulcrum formed by bases of cerci and paraproctal complexes; membranous band of tergum IX connecting fulcrum with membranous segment X. Segment X transparent, membranous, forming continuation of membranous tergite IX; sclerotized parts of tergites VIII and segment X cover dorsal part of phallic apparatus. Cerci each with narrow, basal part; widening apically, with broad, slightly upward-curving apicoventral lobe; cerci shorter than gonopods. Paraproctal complexes fused to cerci, projecting anterad, well before fulcrum. Dorsal paraproctal processes slender, originating from anterad-projecting base of paraproct, bending downwards to gonopods. Paraproctal subphallic sclerite modified into pair of clavate processes with setose apices and enlarged setal alveoli, forming capitate and dactylate apex. Gonopods ( Fig. 52 ) long, oriented horizontally, each with bilobed apex in lateral view; dorsal lobe slender, arcuate; ventral lobe broad; when specimen cleared, backwardly directed small basomesal spines and slightly forwardly directed, stronger subbasomesal spines visible inside from lateral view. Phallic apparatus located dorsally in genitalia, guided by pair of dorsal paraproctal processes and by processes of subphallic sclerite. Phallic apparatus formed by arching, tube-like, sclerotized phallotheca with upcurving dorsal lobe, and ventral membranous endotheca or endophallus without visible sclerites.

Holotype male: FIJI ISLANDS: Viti Levu : Koronivia Research Station, 6.ii.1975, light trap [J. A. Uluinaceva]—( BMNH, FUI 5608 ).

Distribution: Fiji Islands.

Etymology: Coronivia, named after the type locality.

Figures

FIGURES 51–52. Polyplectropus coronivia, new species, holotype. 51—genitalia, left lateral; 52—phallic apparatus, left lateral.