Thailand Agromyzidae (Diptera) — 2 Author Sasakawa, Mitsuhiro text Zootaxa 2013 3746 4 501 528 journal article 10.11646/zootaxa.3746.4.1 2c47b519-8bb0-41d2-a4ab-3abec949499e 1175-5326 216905 F34E3BEA-CABE-4595-B1EB-40CC4802A942 Ophiomyia flagellata sp. nov. ( Figs 46–48 ) Type material. Holotype male (QSBG), Phetchabun, Khao Kho National Park, 16˚52.573´N, 101˚08.077´E, 520 m a.s.l., 26 x–2 xi 2006 , Malaise trap, Somchai Chatchumnan & Sa-ink Singtong. Paratypes : 2♂ , same data as holotype . Diagnosis . Shining black; calypter with fringe black; facial carina narrow, extending ventrally to oral margin; vibrissal fasciculus lacking; sursrtylus with about 28 spines in anteroventral corner; basiphallus with lateral sclerites joined basally by a ventral bridge, distiphallus with a whip-like process on left side. Description . MALE. Black; ocellar triangle and facial carina shining; lunule brown-tinged; mesoscutum and abdomen strongly shining. Wing hyaline; calypter brownish gray, with margin and fringe black. Frons slightly wider than eye, converging ventrally; parafrontalia not projecting above eye in profile; ors and ori each two, oh rather long, reclinate; ocellar triangle with ventral tip pointed sharply, extending to level of second ors ; lunule lower than semicircle; face with carina distinct, narrowly raised below bases of antennae, extending ventrally to oral margin; eye about 1.2 times as high as wide; gena 1/6–1/7 as high as eye; vi normal. First antennal flagellomere round, wider than genal height; arista almost as long as eye width, microscopically pubescent. Mesoscutum with 0+2 dc , eight rows of acr . Wing 1.8–2.2 (1.8) mm long; costa extending to M1, with three sections in proportion of 29–31: 8: 7; r-m beyond midpoint of discal cell (8: 4–5); M1 ratio 4.5–6.0; ultimate section of CuA1 1/2–3/4 as long as penultimate section (10–15: 22). Epandrium with surstylus slightly projected anteriorly, bearing 27 or 28 spines and many long setae in anteroventral corner; cercus narrow, 2/3 as high as epandrium, with a row of five to seven stout setae anteroventrally. Hypandrium 220 µm long, without basal apodeme. Phallapodeme 530 µm long; phallus 360–370 µm long, basiphallus with narrow lateral sclerites joined by a bridge extending from midpoint of the left sclerite towards base of the right, distiphallus with two lobes laterally and a whip-like process on left lobe. Ejaculatory apodeme 180 µm long, blade asymmetrically expanded, 90 µm wide. FIGURES 46–56 . Male grnitalia of Ophiomyia flagellata sp . nov . (46–48,holotype), O . quadrifida sp . nov . (49–53, holotype) and O. striata sp . nov . (54–56, holotype). Body length 1.8–2.0 mm. FEMALE. Unknown. Distribution . Thailand . Remarks . The coloration, wing length and characteristic form of the basiphallus of this species are somewhat similar to those of Ophiomyia centrosematis , but in the new species the facial carina is distinct, and the distiphallus bears a whip-like process on the left lobe; in O . centrosematis , the facial carina is quite absent, the basiphallic sclerites are isolated except for their base, and the distiphallic lobes are spinulose. Etymology. The specifc name refers to the whip-like (Latin: flagellatus ) process on the distiphallus.