Plectrocnemia kachin, 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 : 13-14

Plectrocnemia kachin , new species

Figures 7–10

Diagnosis: This species is most similar to P. banksi Fischer from India, from which it is separated by the more elongated, less triangular cerci; the processes of the paraproctal complex having a different shape; and the gonopods being straight, not arcuate upwards. In addition, the gonopods have a bilobed basomesal branch visible in ventral view.

Description: Male. Body uniformly brown. Maxillary palp formula (I,II)-IV-III-V, 3rd segment of each maxillary palp originating subapically on lateral surface of 2 nd segment. Forewings brown, length 8.5 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 subtriangular, with almost right-angled ventroapical corner ( Fig. 7 ); dorsoapical part connecting to tergite and fulcrum formed by cerci and paraproctal complex; tergite IX membranous; short, elongated dorsoapical corner of sternum IX formed by fusion of anterior and posterior antecostal grooves projecting mesad from fulcrum. Segment X visible as translucent, membranous lobe projecting posterad in continuation of dorsoapical corner of sternite IX ( Figs. 7, 8 ). Setose cerci originating from paraproctal body, elongated, curving slightly inward; basal part covered by enlarged tubercles. Paraproctal complex fused to cerci, forming dorsal and lateral phallic guide; 3 pairs of dorsal, smooth, paraproctal processes; 2 pairs glabrous, upper pair directed caudad, very slender; 1 pair forming backward- and laterad-directed, strong, long spine-like processes; 3rd lower pair fused to ventrobasal part of cerci, granulated by densely packed microtrichia. Pair of ventral paraproctal processes weakly sclerotized, digitate; apex armed with few long setae, located mesally along sides of phallic apparatus. Gonopods monolobed, straight, horizontal, almost parallel-sided, broadening basoventrad in lateral view, apical half triangular in ventral view ( Fig. 9 ); dorsobasal processes bilobed ( Fig. 9 ). Phallic apparatus ( Fig. 10 ) broad, horizontal; large, sclerotized phallotheca with sclerotized, ventral lobe; phallotremal sclerite poorly defined in endotheca.

Holotype male: MYANMAR: NE, Kambaiti 7000 ft, 4–8.vi.1934 [R. Malaise]—( BMNH, Coll. Malaise, B.M. 1938-258).

Paratypes: Same data as holotype, except 25.v.–4.vi.1934 [R. Malaise]— 5 males ( BMNH, Coll. Malaise, B.M. 1938-258) ; same data, except 12–17.vi.1934, [R. Malaise]— 1 male ( BMNH, Coll. Malaise, B.M. 1938- 258) ; same data, except 2000 m, 11.vi.1934 [R. Malaise]— 1 male ( OPC) .

Distribution: Myanmar.

Etymology: Kachin, named after the Myanmar Kachin State where the species was collected.

Figures

FIGURES 7–10. Plectrocnemia kachin, new species, holotype. 7—genitalia, left lateral; 8—genitalia, dorsal; 9—left gonopod, ventral; 10—phallic apparatus, left lateral.