FRUIT FLIES OF GENUS TOMOPLAGIA — ACZEL 353 



ultimate 1.16-1.11 mm. long; inner cross-vein 0.32 (0.34), outer 

 cross-vein 0.61 (0.63) mm. long; anal cell and process 0.82 (0.88) mm. 

 long, apical process 0.22 (0.32)^mm. long, whole anal cell 2.7 (3.5) 

 times as long as apical process. 



Preabdomen 1.6 (2.2) mm. long (without ovipositor) and 1.5 (1.5) 

 mm. wide, without black markings in all the specimens examined; 

 fifth tergite 0.23 (0.31), sixth 0.18 (0.29) mm. long; fifth tergite 

 slightly longer than, to 1.2 times as long as, sixth. 



Sheath of ovipositor in living specimens very probably short conical 

 (length 0.48, basal width 0.70, apical width 0.29, and basal height 

 0.61 mm.) but in dried specimens is usually flattened (length 0.49, 

 basal width 0.82, apical width 0.36, and basal height 0.23 mm.); 

 about 1.5 times as wide basally as long; shining and brownish yellow 

 in color, evenly covered with fine, yellowish brown, appressed hairs. 

 Apical part of ovipositor lanceolate, with apex pointed. 



Species orginally described from Costa Rica. 



Type: In Hamburg Museum. 



Specimens examined: Panamd: El Cermeno, 28 cf cf, 26 99, 

 April 1939, fruit-fly trap, Zetek; 9, Dec. 5, 1939, fruit-fly trap, Zetek; 

 La Campana, 2 cf cf, 3 99, March-April 1938, fruit-fly trap, Zetek; 

 Arraijan, cf , May 29, 1951, Zetek. Guatemala: Guatemala City, 9, 

 June 12, 1923, E. G. Smyth; Antigua, cf , June 12, 1923, E. G. Smyth. 

 (All specimens in USNM.) 



Tomoplagia discolor (Loew) 



Figure 97, g; Plate 20, figure 6 



Trypeta discolor Loew, 1862, p. 64. 



Tomoplagia discolor (Loew), Hendel, 1914, p. 34. 



A single female specimen is at hand from Puerto Rico; it undoubtedly 

 belongs to the weU-defined species discolor (Loew), with modified wing 

 pattern, although its abdomen is not entirely black. According to the 

 absence of the black spots on the postscutellum, this species may 

 belong to the ohliqua group. 



Female: Length 3.4 mm.; wing 4.0 mm. long and 1.7 mm. wide, 

 2.3 times as long as wide. 



Head entirely pale ochraceous yellow, including antennae and 

 mouthparts; 0.75 mm. long, 1.30 mm. wide, and 1.09 mm. high. 

 Frons at vertex 0.57 and at anterior margin 0.45 mm. wide, and in 

 median line 0.57 mm. long. Postpedicel wide-oval, 0.27 mm. long and 

 0.23 mm. wide, nearly 1.2 times as long as wide; seta bare, shining 

 black, except the thickened testaceous yellow basal fourth; only about 

 twice as long as postpedicel. Eyes in profile 1.6 times as high as wide. 

 Oral margin of mesofacial plate raised and considerably prominent. 



327017—55 3 



