Plectrocnemia malaisei, 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 : 19-20

Plectrocnemia malaisei , new species

Figures 21–23

Diagnosis: This species is most similar to P.plicata from China (Lijiang). It is separated by its sternite IX that is more elongated anteriorly; the ventral paraproctal spines are stouter, with obliquely notched apical part (not notched in P. plicata ); the 3 megasatae present on the apical margin of each cercus; the gonopods with dorsoapical lobe shorter and armed with a single megaseta; and a mesal process of the gonopods being more strongly produced and clearly visible in lateral view.

Description: Male. Body uniformly brown. Maxillary palp formula (I,II)-IV-III-V, 3rd segment of each maxillary palp originating subapically on subapicolateral face of 2 nd segment. Forewings brown, length 5.6 mm. Discoidal cell closed in each forewing and hind wing; forewings each with median cell closed; forewings each with apical forks 1, 2, 3, 4, and 5; hind wings each with apical forks 1, 2, and 5.

Male genitalia. Sternite IX nearly triangular, anteroventrally elongate; apical lobe present subdorsally on posterolateral margin; dorsoapical part connecting sternite and fulcrum; fulcrum on each side formed by sclerotized cercus and large-sized paraproctal complex and meeting points of nearly invisible membranous tergite IX and segment X; tergite IX completely membranous, except weakly sclerotized, almost indiscernible triangle located anterodorsal of fulcrum. Segment X forming membranous triangular roof above cerci ( Fig. 21 ). Cerci each originating from fulcrum, large, elongate, rounded foliaceous, with 3 large, backwarddirected, dorsolaterad-curving megasetae on apical margin. Large paraproctal complex fused to basimesal region of each cercus, humped mesally and dorsally at fulcrum, continuing in stout ventral paraproctal arm as large arching spine initially directed anterad then recurved caudad; apical part obliquely notched. Dorsal paraproctal process forming elongate plate with rounded, broadening apex lateral of phallic apparatus. Gonopods short, trilobed, each with basal dorsomesal lobe terminally, present as inner, elongate process with downward-curving apex ( Fig. 21 ); dorsoapical lobe small, short, armed with 2 mesad-curving megasetae. Ventroapical lobes rounded, blunt in lateral view, bilobed in ventral view ( Fig. 22 ); small mesal arm terminally covered by numerous short, heavily sclerotized, black, tooth-like spines. Phallic apparatus ( Fig. 23 ) oriented horizontally, broad, guided by subphallic bridge of paraprocts. Sclerotized phallotheca large, with vertically oriented phallobase having wide, anteroventral foramen. Border between phallicata and endophallus indistinct; distal part complex, comprised of elongate, duplicate shell-like lateral plates; inner plates fused ventrally, forming apical trough housing endophalus; outer lateral shells forming dorsal paraproctal process fused basally to cercal-paraproctal complex. Pair of dorsolateral, thick parameres embedded in retracted endotheca. Elongate, weakly pigmented phallotremal sclerite present centrally within retracted endotheca.

Holotype male: MYANMAR: S. Shan States, Road 40 km E. of Taunggyi , 13.x.1934 [R. Malaise]— ( BMNH, Coll. Malaise, B.M. 1938-258).

Paratype: same data as holotype— 1 male ( OPC) .

Distribution: Myanmar.

Etymology: Malaisei , named after René Malaise, who collected the species and constructed the Malaise trap.

Figures

FIGURES 21–23. Plectrocnemia malaisei, new species, holotype. 21—genitalia, left lateral; 22—left gonopod, ventral; 23—phallic apparatus, left lateral.