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 Melanagromyza dolichostigma Meijere Melanagromyza dolichostigma Meijere, 1922: 19 . Melangromyza cordiophoeta Spencer, 1961a: 71 . syn . nov . Material examined . ♀, Chaiyaphum, Tat Tone National Park, 15˚59.037´N, 102˚02.103´E, 250 m a.s.l., 21-28 vi 2006 , Malaise traap, Lumyai Ittichan; 2♂ , Nakhon Nayok, Khao Yai National Park, 14˚24.761´N, 101˚22.815´E, 770 m , 12–19 vii 2006 & 14˚24.619´N, 101˚22.778´E, 770 m , 19–26 vii 2006 , Malaise trap, Pong Sandao; ♂, Sakon Nakhon, Phu Phan National Park, 17˚03.543´N, 103˚58.452´E, 312 m , 21–27 vii 2006 , Malaise trap, Winlon Kongnara; ♀, Sakon Nakhon, Phu Pha Yon National Park, 16˚55.655´N, 104˚10.658´E, 280 m , 5–11 vii 2006 , Malaise trap, Manop Ngoyjansri & Chatree Cheaukamjan; 2♀, Chiang Mai, Doi Inthanon National Park, 18˚32.657´N, 98˚31.482´E 1200 m , 27 ix–5 x & 19–26 x 2006 , Malaise trap, Y . Areeluck; ♂, Chiang Mai, Doi Inthanon National Park, 18˚35.361´N, 98˚29.157´E, 2500 m , 27 ix–5 x 2006 , Malaise trap, Y . Areeluck; 6♂ , Loei, Phu Ruea National Park, 17˚29.907´N, 101˚20.483´E, 1196 m , 5–12 viii 2006 & 17˚30.740´N, 101˚20.650´E, 1353 m , 19–26 ix & 26 ix–2 x 2006 , Malaise trap, Nukoonchai Jarroenchai; 5♀, Phetchabun, Khao Kho Ntional Park, 16˚32.546´N, 101˚02.501˚E, 274 m , 5–12 xi 2006 , Malaise trap, Somchai Chachumnan & Saink Singtong. Remarks . This black species is characterized by having the mesoscutum and abdomen strongly shining, with coppery, greenish or bluish sheen, a white fringe on the calypter, a narrow frons (as wide as or slightly wider than eye) and gena (1/7–1/8 as high as eye), a bare eye in the male, a distinctly pubescent arista, and about 15 spines on the surstylus (arranged in one basal row and two rows along anteroventral margin of the projection), and a pair of chitinized processes at end of the distiphallus in addition to a long distal tube curved dorsally at end (phallus of dolichostigma : see Spencer 1973: figs 20, 21; that of cordiophoeta : Spencer 1961 a: fig. 43 and Sasakawa 1963c: fig. 6). The larva is known as an oligophagous stem-borer of Calopogonium , Glycine , Pueraria , Phaseolus and Crotalaria spp. (Leguminosae). Spencer (1961a) described Melanagromyza cordiophoeta from males caught on the flowers of Cordia cylindristacha (Boraginaceae) in Singapore , and while noting strong similarities with M. dolichostigma , he hesitated to synonymize the two until additional evidence on the larval morphology and mining habits became available (Spencer 1973). However, I have no doubt of its synonymy on the basis of their similar size (wing length 2.2–2.5 mm , longer than 1.6 mm noted by Spencer), and unmistakable complex structures of the phallus. Distribution . Indonesia (Java), Singapore , Thailand , Taiwan ; Papua New Guinea , New Britain , New Ireland ; Japan (Ryukyus).