FRUIT FLIES OF GENUS TOMOPLAGIA — ACZEL 329 



Key to the species of Tomoplagia 



1. Postscutellum black, the median part more or less extensively yellow. 



Mediotergite usually testaceous yellow to brown but sometimes partly 

 or entirely black 2 



- Postscutellum and usually the mediotergite uniformly yellow to brownish 



yellow, without dark brown to black lateral spots 26 



2. Two black or dark brown markings on the sides of mesonotum: a short vitta- 



like one below the posterior notopleural bristle and a semicircular spot 

 above wing base. Only the usual pair of lateral black spots present 

 on hind region of mesonotum between the prescutellar and upper postalar 

 bristles. Wing pattern normal. Pteropleuron with black spot. Dorso- 

 centrals slightly behind the level of the supra-alars. {phaedra group). 3 



- Only one black marking present on sides of mesonotum above wing base. 



Only the usual pair of lateral black spots present on the hind region 

 of mesonotum. Wing pattern normal. Dorsocentral bristle pair 

 inserted in hind two-fifths of distance between suture and sa bristles. 

 Two black spots on pleura, a large one on sternopleuron and a smaller 

 one on pleurotergites. Inferior mesopleural bristle almost as long as 

 superior. Sheath of ovipositor shorter than breadth at base; thorax 

 3.7 times as long as the sheath. Preabdomen yellowish brown, tergites 

 with wide yellow hind margins, third to sixth tergites each with a pair 

 of incised lateral black spots, irregular in shape. Eyes in profile 1.9 

 times as long as wide. 6 mm. Argentina. 



9 minattai Blanchard (MS.), new species (p. 368) 



- Both black markings absent from sides of mesonotum 4 



3. Frons twice as broad as one eye, with five incurved lower orbital bristles 



(on). Mediotergite entirely shining black. Sternopleura black with 

 yellow upper margin; one black spot above hind coxa, and another on 

 pleurotergites. Mesonotum ochraceous yellow, dusted, with five dark 

 yellow linear vittae. Second basal cell entirely yellow. Male abdomen 

 without lateral black spots. 7 mm. Bolivia, Argentina. 



cf stacta Hendel 



- Frons approximately twice as broad as one eye, with the usual three incurved 



ori. Mediotergite shining testaceous yellow, with pair of elongated 

 lateral black spots. Pleura with only one black to brown spot on 

 pteropleuron. Mesonotum evenly dusted with yellow, without hnear 

 vittae. Second basal cell yellow, with large anterobasal hyaline spot. 

 A pair of black to brown lateral spots always present on sixth tergite 

 of female; sometimes the fifth, exceptionally the fourth and fifth tergites, 

 with a smaller pair of lateral spots. Fifth tergate of male with a pair 

 of lateral black to brown spots, very variable in size, occasionally absent; 

 1.5-1.7 times as long as fourth. Eyes in profile 1.9-2.0 times as high 

 as wide. Sheath of ovipositor slightly shorter than broad at base; 

 thorax 2.8-3.0 times as long as sheath. Postpedicel 1.4-1.6 times as 

 long as wide. Dorsocentral bristles inserted almost in line with supra- 

 alar (sa) bristles ( 9 ) or in hind fourth of distance between transverse 

 suture and sa bristles (d^). 5.1-7.0 mm. Peru, Argentina. 



cf 9 phaedra Hende! (p. 378) 



4. Four black spots present on hind region of mesonotum 5 



- Hind region of mesonotum with three black spots, one spot between the usual 



pair which almost reach the scutellar suture. Three pairs of incurved ori 

 present 6 



- Only the usual pair of black spots present on hind region of mesonotum . . 8 



