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 lanciformis Braun & Prado , sp. nov. ( Figures 4, 5 ) Specimens examined: Holotype : ɗ (G, LW, PDC 200429 -C), BRAZIL : SÃO PAULO: Itirapina, 22º15’56”S 47º47’48”W , 17.ii.2005 (various collectors), ex Bidens gardneri (MZUSP). Paratypes : 1 ɗ (LW, PDC 040104 -A), São Carlos, 22º04’06”S 47º52’56”W , 23.i.2005 (various collectors), ex Viguiera arenaria . 1 ɗ (G, LW, PDC 050901 -B), São Carlos, 22º05’46”S 47º49’57”W , 24.i.2005 (various collectors), ex Viguiera arenaria . 1 ɗ (LW, PDC 200426 ), Itirapina, 22º15’56”S 47º47’48”W , 17.ii.2005 (various collectors) ex Bidens gardneri (ZUEC/ UNICAMP). 1 ɗ (LW, PDC 081209 ), Ibaté, 21º58’09”S 47º56’56”W , 30.iv.2004 (various collectors), ex Viguiera robusta . 1 ɗ (G, LW, PDC 050901 -A), São Carlos, 22º05’46”S 47º49’57”W , 24.i.2005 (various collectors), ex Viguiera arenaria . 1 ɗ (LW, PDC 200108 ), Itirapina, 22º15’56”S 47º47’48”W , 17.ii.2005 (various collectors), ex Viguiera arenaria ( MZUSP). Diagnosis: Medium coppery black species, wing length in male 1.6 to 1.78 mm , rectangular distiphallus and a narrow epandrium gap ( Fig. 5 ). Description: Male adult: Wing length 1.6 to 1.78 mm (n= 7, mean= 1.7 mm , sd= 0,068). Squamae gray, margin black and fringe blackish brown. Head : Head black. Eye width 0.30 to 0.42 mm (n= 7, mean= 0.38 mm , sd= 0.03) and frons width 0.18 to 0.27 mm (n=7, mean= 0.24 mm , sd= 0.02) not projecting above eye in profile; four orbital bristles, usually equal, orbital setulae reclinate; ocellar triangle medium, moderately shining, apex extending slightly beyond level of upper orbital bristle; gena one-sixth vertical height of eye; eyes bare in both sexes; arista only minutely pubescent. Thorax and abdomen : Mesonotum coppery black, with two pairs of dorsocentral bristles; abdomen more brilliantly golden. Thorax length 0.70 to 0.96 mm (n=7, mean= 0.85 mm , sd= 0.08 mm ). Pleuron bristles: two on notopleuron, two on anepisternum and two on katepisternum. Only one bristle on postpronotum. Male genitalia : Aedeagus as in Fig. 11. Narrow epandrium gap ( Fig. 5 ). Host plant/Biology: Bidens gardneri , Viguiera arenaria and V. robusta (Heliantheae) , larva feeding and pupating in seed head. Etymology: The specific epithet is derived from the form of the epandrium gap. Distribution: Ibaté, Itirapina and São Carlos (São Paulo) - Brazil . Comments: This species is the largest in this species group, the aedeagus is rectangular and the epandrium gap is very distinctive.