S. Mahunka szerk.: Folia Entomologica Hungarica 55. (Budapest, 1994)

yellowish. Orange patches on sides of vertex and behind eyes marked by transverse striation in Fig. 905, brown pattern (of various intensity) marked by oblique lines and blackish marked by square pattern. In not fully coloured specimens background can be whitish and infuscations and pattern reduced in intensity and size of patches. Face whitish. Anteclypeus, lorae, very lower part of frontoclypeus and outlining of bases of antennae, sordid brown (Fig. 907). Fore wing yellowish with brown pattern as in Fig. 906 (most of the infuscation inside 1-3 apical cells, marble). Costal margin basad of the wax-field reddish and the patches on clavus and adjoining part of corium often suffused with reddish tint. Thorax beneath and legs sordid brownish. Posterior half of tibiae and tarsi sordid yellowish. Abdominal sternites yellowish-white, pygofer and valva dark brown. Abdominal tergites yellowish laterally, centres of 3rd and 4th broadly brown, 5th and 6th in dark specimens infuscated on both sides of midline and 7th and 8th in dark specimen brown sublaterally with large yellow area in the middle; in light specimens only 8th tergite infuscated. Length F 3.50-3.75 mm. Remarks. Produced vertex does not represent a character of female. That, together with other characters of colouration and venation of the fore wing suggests that L. eponae sp.n. is not very closely related to L. pulchella. Platycyba sikkimensis sp. n. (Figs 954, 955) Type material. - Holotype male: Sikkim, Rumtek, 1700 m, lamp domes, 1990, I. Dworakowska (in BMNH). - Paratype F, same data as the holotype (in BMNH). Vertex produced anteriorly, whitish with two broad sordid orange longitudinal fasciae. Upper side of thorax whitish. Two longitudinal fasciae on pronotum similar to those on vertex, tapering cephalad. A small sordid orange patch at apex of scutellum. Fore wing pale (pigment could be destroyes by heat inside lamp dome), conspicuous blackish patch at distal end of wax-field. Orange pattern consists of a patch in proximal half of cup cell (on clavus), the other in distal half of cua cell (except its very apex) and a continuation of the latter in a shape of an irregular triangle throughout m and r cells toward the blackish patch at costal margin. Terminal part of female pygofer blackish. Length F 2.7 mm. [male not measureable]. Penis stem comparatively long, compressed antero-posteriorly (Fig. 955), broadened subapically (Fig. 954) with bulb-shaped apical part. Lower lateral penis appendages arise in upper half of the stem and the upper latero-ventral ones on a short distance apicad of them. Both pairs of appendages strongly curved ventrad and sinuate at apices, slightly asymmetrical (Figs 954, 955). Comparison. The newly described P. sikkimensis is externally very similar to P. albolinea (Zhang) but differs from it by characteristic penis structure as described above. Other parts of male genitalia of the new species are very similar to those of all other known species of the genus Platycyba Mats. Yangidagen. n. Type-species: Yangida basnetti sp. n.