New species of Neotropical Melanagromyza Hendel (Diptera: Agromyzidae) from Asteraceae flower heads Author Braun, Marina Reiter Author Prado, Angelo Pires Do Author Lewinsohn, Thomas Michael text Zootaxa 2009 2279 51 59 journal article 10.5281/zenodo.275266 3a301bfc-2fb3-4f42-839f-243ac4a25c0e 1175-5326 275266 Melanagromyza falciformis Braun & Prado , sp. nov. ( Figures 1 A, 1B, 2, 3) Specimens examined: Holotype : ɗ (G, P0409), BRAZIL : SÃO PAULO: Mogi Guaçu, 26.iv.2001 (various collectors), ex Baccharis dracunculifolia (MZUSP). Paratype : 1 ɗ, São Carlos, 22º02’08”S 47º52’54”W , 18.iv.2004 (various collectors), ex Baccharis dracunculifolia (ZUEC/ UNICAMP). Diagnosis: Small greenish black species, wing length in male 1.14 to 1.28 mm , side wings of distiphallus as an oval-shaped protuberance ( Fig. 2 ). Description: Male adult: Wing length 1.14 to 1.28 mm (n= 3, mean= 1.23 mm , sd= 0,081). Squamae gray, margin gray and fringe blackish brown. Head: Head black. Eye width 0.32 to 0.34 mm (n= 4, mean= 0.33 mm , sd= 0.01) and frons width 0.19 to 0.21 mm (n=4, mean= 0.20 mm , sd= 0.01) not projecting above eye in profile; four orbital bristles, usually equal, orbital setulae reclinate; ocellar triangle large, moderately shining, apex extending slightly beyond level of lower orbital bristle; gena one-sixth vertical height of eye; eyes bare in both sexes; arista only minutely pubescent. Thorax and abdomen : Mesonotum greenish black, slightly shining particularly when viewed from rear, with two pairs of dorsocentral bristles; abdomen more brilliantly golden. Thorax length 0.69 to 0.73 mm (n=4, mean= 0.72 mm , sd= 0.02). Pleuron bristles: three on notopleuron, two on anepisternum and two on katepisternum. Only one bristle on postpronotum. Male genitalia : Epandrium gap is hook-shaped ( Fig. 3 ). Aedeagus as in Fig. 1 A, 1B and Fig. 2 . Host plant/Biology: Baccharis dracunculifolia (Astereae) , larva feeding and pupating in seed head. Etymology: The specific epithet is derived from the form of the epandrium gap. Distribution: Mogi Guaçu (São Paulo) - Brazil . Comments: This species is not distinguishable on external characters from M. falciformis . Distinguishable only by the shape of the epandrium gap ( Fig. 3 ) and the distiphallus ( Figs. 1 A, 1B, 2).