Plectrocnemia dalat, 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 : 16

Plectrocnemia dalat , new species

Figures 14–17

Diagnosis: This species is most similar to Plectrocnemia thai , new species, from Vietnam. Plecrocnemia dalat , new species, is distinguished from that species by the shape of the gonopods being produced dorsad; by the simple ventral paraproctal processes; and in lateral view by the hook-shaped dorsal paraproctal processes.

Description: Male. Body uniformly brown. Maxillary palp formula (I,II)-IV-III-V, 3rd segment of each maxillary palp inserted subapically on subapicolateral surface of 2 nd segment. Forewings brown, with length 5.3 mm. Discoidal cell closed in both forewings and hind wings; 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 subtriangular, elongated ventrally by produced anteroventral corner; dorsoapical corner on posterolateral margin produced, giving small 4th angle to triangle; longer dorsal part connecting sternite to fulcrum formed by sclerotized cerci and large-based paraproctal complex, and meeting points of membranous, vestigial tergite IX and segment X; tergite IX with small membranous flank almost indiscernible, located anterad of fulcrum. Segment X membranous, forming roof above cercus and dorsal paraproctal processes in lateral view ( Fig. 14 ). Setose cerci originating from fulcrum; each large, elongate, parallel-sided, foliaceous, with anterodorsal margin slightly sinuate at midlength. Paraproctal complexes large, each fused to basomesal region of its cercus, forming large body at fulcrum ( Fig. 14 ); turning dorsolaterad into ventral paraproctal processes; heavily sclerotized paraproctal complex produced dorsomesad; dorsal paraproctal processes each forming horizontal plate ( Fig. 15 ) and vertical rounded plate with upturning hook-like spine visible in lateral view, guiding phallic apparatus; apex of ventral and dorsal paraproctal processes turning dorsad, hook-shaped. Gonopods short, triangular, each with elongate dorsodistal angle in lateral view; basal dorsomesal lobe present in middle position, forming inner, elongate, slender process with mesad-directed apex ( Figs. 14, 16 ); anterior margin produced into mesal ridge with stout, long macrosetae decreasing in size ventrally. Phallic apparatus ( Fig. 17 ) broad, horizontal; large sclerotized phallotheca having short phallobase with wide anteroventral foramen; border between phallicata and endophallus distinct; pair of dorsally located, thick parameres with bases embedded in endophallic membranes and with apices free; apical 1/3rd of parameres notched dorsally starting from distinctive, pigmented ring; elongate, weakly pigmented, indistinct phallotremal sclerite present centrally in endotheca, and pair of spines at border of phallicata and aedeagus.

Holotype male: VIETNAM: Lamdong , Dalat, Monastery Balcony, 16.x.1988, light [J. Oláh]—( OPC).

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

Distribution: Vietnam.

Etymology: Dalat, named after the type locality.

Figures

FIGURES 14–17. Plectrocnemia dalat, new species, holotype. 14—genitalia, left lateral; 15—genitalia, dorsal; 16—left gonopod, ventral; 17—phallic apparatus, left lateral.