Melanagromyza cirrappendicula , Sasakawa, Mitsuhiro, 2013

Sasakawa, Mitsuhiro, 2013, Thailand Agromyzidae (Diptera) — 2, Zootaxa 3746 (4), pp. 501-528: 508-510

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Melanagromyza cirrappendicula

sp. nov.

Melanagromyza cirrappendicula  sp. nov.

( Figs 12–14View FIGURES 9 – 18)

Type material. Holotype male (QBSG), Loei, Phu Ruea National Park, 17 ˚ 30.735 ´N, 101 ˚ 20.601 ´E, 1352 m a.s.l., 19–26 ix 2006, Malaise trap, Nukoonchai Jaroenchai.

Diagnosis. Black; frontalia brownish ventrally; mesoscutum weakly and abdomen strongly shining coppery; calypter with margin and fringe yellow; ocellar triangle large, with ventral tip extending to level of first ori; gena narrow; surstylus with about 20 spines on projection; basiphallus quadrate in ventral view, mesophallus with membranous tube distally.

Description. MALE. Black; ocellar triangle shining; frontalia brownish ventrally, lunule brown; gena browntinged; mesoscutum weakly shining coppery, abdomen brilliantly metallic-coppery. Wing hyaline, calypter with margin and fringe yellow.

Frons nearly 1.5 times as wide as eye, slightly converging ventrally; parafrontalia linearly projecting above eye in profile; ors and ori each two; oh minute, reclinate, in row; ocellar triangle large, with ventral tip extending to level of first ori; lunule higher than semicircle; eye 1.3 times as high as wide, bare; gena narrow, about 1 / 12 as high as eye. First antennal flagellomere round, about twice as wide as genal height; arista as long as eye width, pubescent.

Mesoscutum with 0+ 2 dc, eight rows of acr. Wing 2.5 mm long; costa extending to M 1, with three sections in proportion of 30: 10: 8.5; r-m almost at middle level of discal cell (11–12: 10); M 1 ratio 3.0; ultimate section of CuA 1 about 2 / 3 as long as penultimate section (13: 21). Mid tibia with two pd.

S 6 four times as long as S 5, about 4 / 5 as long as wide, with very shallow emargination posteriorly. Epandrium with surstylus projected posterodistally and incurved, bearing three spines at base and 20–22 spines in three to four rows on distal projection; cercus 2 / 3 as high as epandrium, slightly broadened at middle (about 1 / 3 as wide as epandrium). Hypandrium 350 µm long, with basal apodeme 1 / 3 as long as sidearm. Phallapodeme 560 µm long; phallus 380 µm long, basiphallic sclerites bent ventrally near distal end, forming a square in ventral view, mesophallus with membranous tube weakly curled, distiphallus slightly wider than mesophallus, with distal tube short; ejaculatory apodeme 280 µm long, blade expanded roundly, 220 µm wide.

Body length 2.6 mm.

FEMALE. Unknown.

Distribution. Thailand.

Remarks. This species is closely related to Melanagromyza multistriata  sp. nov. in having similar coloration and large ocellar triangle, but it is smaller, and has a less shining mesoscutum and a characteristic phallus as described above.

Etymology. The specific name refers to the curly appendage (Latin: cirratus + appendicula) of the mesophallus.