Stenomicra flava L. PAPP, 2006

Papp, L., Merz, B. & Földvári, M., 2006, DIPTERA OF THAILAND A summary of the families and genera with references to the species representations, Acta Zoologica Academiae Scientiarum Hungaricae 52 (2), No. 2, pp. 97-269 : 211-213

Stenomicra flava L. PAPP , sp. n.

(Figs 100–106, 137)

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.

Paratype: 1 female: VIETNAM: Sín Chai , “Legendary Place”, swept along forest patch & creek, 15.XI.2003, No. 6. leg. M. FÖLDVÁRI , L. PEREGOVITS & Á. KŐRÖSI.

Measurements in mm: body length 1.74 (holotype), 2.22 (paratype), wing length 2.17, 2.28 (paratype), wing breadth 0.65, 0.72.

Body and legs all yellow. All head and thoracic setae yellow.

Two pairs of reclinate ors, anterior pair very short (only 1/4 of posterior pair) and thin ( Fig. 137 ). Facial genal setae shorter but more numerous: below “pseudovibrissae” 5 pairs of distinct setae ( Fig. 137 ) and a pair of moderately long subocular genal seta, plus 4 pairs of short posterior genal setae present. Arista with 3 dorsal and 2 ventral long rays, basal ventral on particularly long, 0.15 mm. First flagellomere with long (0.06–0.07 mm) cilia on its whole dorsal edge.

Figs 100–106. Stenomicra flava sp. n., male genitalia. 100–101 = syntergosternite 7+8: 100 = ventral view, 101 = lateral view; 102 = genitalia in ventral view (cerci oblique to the body axis), 103 = same, lateral view, 104 = surstylus in broadest extension (subcaudal view), 105 = ejaculatory apodeme, dorsal view, 106 = hypandrial complex , dorsal view. Scales: 0.2 mm for Figs 100–103, 0.1 mm for Figs 104–106

Mesonotum bulging. No postpronotal seta, 2 np (posterior np far from suture) 1 presutural, 2 dc and 1 kepst. Five long dcmi cranially to anterior dc, acmi uniserial. Metanotumstrongly bulging.

Wing long and narrow, clear yellowish, veins yellow. R 2+3 – R 4+5 section of costa long, 0.48 mm, R 2+3 – R 4+5 section 0.10 mm. Intracrossvein section of M 0.18 mm, dM-Cu 0.08 mm. Haltere white.

Male abdomen yellow, tergites 2–4 with large blackish lateral spots, tergite 3 almost completely light brown on margin. Tergite 6 very short. Syntergosternite complex 7+8 circular (Figs 100–101) but sharply divided into a dorsal and a ventral part, dorsal part being much longer (Fig. 101). Cerci oblique to body axis. Surstyli (Figs 102, 104) symmetrical, moderately large, with broad base and narrow apical part, apex rounded with a subapical, medially directed seta. Surstylus hidden under epandrium when at rest (Fig. 103), i.e. inserted far above ventral edge of epandrium. Genital (hypandrial) complex comparatively small (Fig. 106), hypandrium long (“broad”) medially, asymmetrical, dorsally with a small left and a large projecting right projection. Left gonite long, bifid. Ejaculatory apodeme (Fig. 105) rather small.

Female abdomen yellow, tergites 2 to 4 with brown spots on lateral edge of abdomen, anterior to caudal margin, which continue in submarginal light brown band each crossing all the tergites (i.e. meet sagittally). Tergites 5 and 6 all yellow, tergites 7 and 8 dark brown. Sternites 7 and 8 short, yellow, not produced into medial process. Female cerci short with minute yellow hairs only.

Stenomicra flava sp. n. does not key to species in SABROSKY’ s (1965) key: its wings are clear (not brown with white marks as in S. argentata ), its mesonotum is clear yellow (opposing S. angustiforceps from East Nepal, see also above). The male surstylus is much different from that of S. angustiforceps (SABROSKY’ s fig. 5, vs Figs 102, 104).

Figures

Figs 136–139. 136 = Cyamops fumipennis sp. n. wing; 137 = Stenomicra flava sp. n., holotype male, head laterally; 138 = Podocera claripennis sp. n., holotype male, head, lateral view, 139 = Podocera