FRUIT FLIES OF GENUS TOMOPLAGIA — ACZEL 337 



— A blurred translucent dark brown cloud on apical process of anal cell. Eyes 



in profile higher, 1.7 times as high as wide. Dorsocentral bristles in- 

 serted in anterior third to fourth of distance between suture and supra- 

 alar bristles. Fifth tergite of male with two pairs of lateral black spots. 

 Slightly larger species, 3.5-4.0 mm 37 



37. Apex of scutellum with a small brown dot. Inferior mesopleural bristle 



shorter and much weaker than superior. Second abdominal tergite of 

 both sexes with a pair of small brown to black dots. Ovipositor sheath 

 relatively long, thorax only 2.0-2.3 times as long as sheath. 3.6-4.0 mm. 

 United States of America: California, Arizona. 



d^ 9 cressoni, new species (p. 347) 



— Scutellum entirely yellow. Inferior mesopleural bristle absent. Second 



abdominal tergite of both sexes without brown or black lateral spots. 

 Ovipositor sheath relatively shorter, thorax 2.7-2.8 times as long as 

 sheath. 3.5-3.6 mm. Peril ... cf 9 monostigma Hendel (p. 373) 



38. Wing pattern modified as in pura: apical yellow band separated from sub- 



apical at anterior wing margin, but broadly connected with subapical 

 band in apex of first posterior cell. At least apical part of abdomen 

 entirely black, basal part yellow, without black spots. 3.4 mm. Puerto 

 Rico; Cuba 9 discolor (Loew) (p. 353) 



— Wing pattern normal. Abdomen yellow with lateral black spots on 



tergites 39 



39. Second basal cell entirely yellow. Second to sixth abdominal tergites of 



female each with one pair of lateral black spots. Brazil. 



9 biseriata (Loew) 



— Second basal cell yellow with large hyaline spot; a well-delimited small opaque 



brownish black spot at apical process of anal cell, distad to anal vein. 

 Dorsocentral bristles inserted almost in transverse suture 40 



40. Smallest species of the genus, testaceous yellow. Sometimes a brownish black 



spot present on pleurotergites. Third to fifth tergites of male each with 

 a pair of roundish black lateral spots. Eyes in profile wide-oval, only 1.4 

 times as high as wide. Fifth tergite of male only 1.5 times as long as 

 fourth. 2.5-2.8 mm. Brazil: Sao Paulo, Santa Catarina. 



cf" minuta Hering (p. 370) 



— Slightly larger species, pale yellow. Third and fourth abdominal tergites of 



male each with a pair of small black dots, fifth tergite spotless, very long, 

 2.3-2.5 times as long as fourth. Eyes in profile higher oval, 1.8 times as 

 high as wide. 3.8-4.0 mm. Southern Brazil: Sao Paulo. 



cf salesopolitana, new species (p. 400) 



Tomoplagia argentiniensis, new species 



Figures 98,a-d; 102,to; Plate 22, figure 13 



A well-defined aberrant species of the arsinoe group with the same 

 modified wing pattern as incompleta, differing from the allied species 

 in having two pairs of lateral black spots on the anterior region of the 

 mesonotum. 



Male: Length of body 4.4 mm.; wing 3.9 mm. long, 1.8 mm. wide, 

 2.1 times as long as wide. 



Head entirely testaceous yellow; mesofacial plate very sparsely 

 whitish dusted, oral margin raised and slightly prominent. Head 

 0.66 mm. long, 1.21 mm. wide, and 1.00 mm. high. Frons 0.54 mm. 

 at vertex, 0.38 mm. broad at anterior margin, about as broad as one 



327017—55 2 



