Melanagromyza yodai Sasakawa

Sasakawa, Mitsuhiro, 2013, Thailand Agromyzidae (Diptera) — 2, Zootaxa 3746 (4), pp. 501-528 : 521

Melanagromyza yodai Sasakawa

( Figs 43–45 )

Melanagromyza yodai Sasakawa, 1962: 135 .

Material examined. 1♂, 2♀, 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.

This small, black species was described by a single female, with a slight metallic sheen on the faintly graydusted mesoscutum, collected at Doi Suthep, in December 1957.

Description. The male is described here for the first time, differing from the female in the following points: mesoscutum and abdomen brilliantly shining; frons slightly wider than eye; lunule semicircular; gena 1/8 as high as eye; acr arranged in eight rows; wing length 2.1 mm; S6 almost five times as long as S5, about 4/5 as long as wide, with shallow emargination posteriorly. Genitalia: epandrium with surstylus roundly projected on its anteroventral part, incurved, bearing 26 spines in three irregular rows, and few pale spines and setae on posterior corner of projection; cercus 1/2 as high as epandrium, with row of five or six stout setae anteroventrally; hypandrium 340 µm long, with basal apodeme about 1/3 as long as sidearm; pregonite with five to seven sensillae; phallapodeme 530 µm long; phallus 400 m long, basiphallus tubular, broadened distally; distiphallus with spinulose lobes near dorsolateral base; ejaculatory apodeme 190 µm long, blade almost symmetrically broadened distally, 110 µm wide.

Remarks. The coloration and structures of the male genitalia of this species show similarity to those of the Australian Melanagromyza trifilis Spencer , but this species has only two postsutural dc. The dense spines on the surstylus and spinules on the distiphallus in this species are distinctive (phallus of trifilis: Spencer 1977 b: figs 64, 65).

Distribution. Thailand.

Figures

FIGURES 37 – 45. Male genitalia of Melanagromyza spinuliloba sp. nov. (37 – 39, paratype), M. turgida sp. nov. (40 – 42, holotype) and M. yodai Sasakawa (43 – 45).