Holotype male (HNHM, abdomen with genitalia in a plastic microvial with glycerol): THAILAND: Fang, Mae Fang National Park, Doi Pha Hom Pok, 2000 m, 22–23. XI. 2003, swept along forest road and creeks, No. 11, leg. M. FÖLDVÁRI.

Paratypes: 1 male, 1 female: data same as for holotype; 2 males: VIETNAM: Sin Chai, “Legendary Place”, 10.11.2003, No. 1, leg. M. FÖLDVÁRI, L. PEREGOVITS & Á. KŐRÖSI.

Measurements in mm: body length 1.63 (holotype), 1.41–1.85 (paratypes), wing length 2.07, 2.00–2.35 (paratypes), wing breadth 0.70, 0.65–0.80.

Frons grey, thickly whitish grey dusted. Face, lower pleura and legs yellow. Mesonotum and upper pleura yellowish grey.

Anterior pair of ors large (almost as long as posterior) and inclinate. Facial genal setae long and similar to those of P. variegata sp. n. (Fig. 138): ventrally to “pseudovibrissae” a half as long facial seta plus 2 pairs of long, slightly ventrally curved pairs, 2 pairs of additional downcurving genal setae. No subocular genal seta, but 2 longer posterior genal setae present. Arista with 4 dorsal and 2 ventral long rays behind the long apical fork. First flagellomere with long cilia on tip only. Vertical setae yellow, others black. Proclinate, short but distinct inner verticals present.

0.2 mm for Fig. 107, 0.1 mm for Figs 108–114.

Middle part of mesonotum (between dc lines) thickly light grey microtomentose. Katepisternum and lower pleura yellow, anepimeron and anepisternum and other parts of upper pleura greyish yellow. Postpronotal and presutural setae short but distinct, only 1 dc pair. Metanotum bulging, less dusted, almost shiny.

Legs yellow, only apical 2/7 of hind tibia brown, apical tarsomeres browned.

Wings clear, about 3 times as long as broad. Vietnam males with a faint window around dM-Cu. Veins yellow, crossveins white. R2+3 – R4+5 costal section shorter than R4+5 –M section (0.065 mm, 0.08 mm). Intracrossvein section of M 0.325 mm, dM-Cu 0.14 mm. Haltere grey.

Male epandrium very high, hypandrium inserted at its dorsal ¼. Horizontal part of subepandrial sclerite not large. Cerci long (Fig. 107). Surstylus large, much (archely) curved (Fig. 108) with two apices. Surstylus inserted to medial apex of epandrium. Genital complex wholly asymmetrical (Fig. 109). Hypandrium narrow medially (actually short with large, long left hypandrial process. Right gonopod very large, left gonopod bipartite. A phallic theca present. Ejaculatory apodeme large (Figs 110–111) compared to that of Stenomicra spp., proximal (head) part more elongate, distal (ductus) part less broadened.

Its female sternite 7 produced into a sharp apex apico-caudally.

Its closest relative is an undescribed species from Taiwan and we can compare it only to P. fascipennis (MALLOCH) among the known species. Its specific epithet refers to its clear wings, as opposed to the darkened wings of P. fascipennis. Their male genitalia are the same in basic structure. Details depicted on Figs 107–111, vs Figs 112–114, show distinct differences.