374 PROCEEDESTGS OF THE NATIONAL MUSEUM vol. i04 



cressoni. First costal section 0.61 (0.63), second 1.25 (1.32), third 

 0.80 (0.77), and fourth 0.50 (0.49) mm. long; first section of the fourth 

 longitudinal vein (M,) 1.34 (1.36), penultimate 0.27 (0.30), and ulti- 

 mate 1.18 (1.25) mm. long; inner cross- vein {ta) 0.32 (0.30), outer 

 0.50 (0.54) mm. long, ta as long as or slightly longer than distance 

 (penultimate section of Mi) between cross-veins; anal cell with apical 

 process 0.72 (0.72) mm. long, whole cell only 2.5 times as long as the 

 apical process (0.29 (0.28) mm.), which is longer than in cressoni. 



Halteres ochraceous yellow. 



Coxae and legs ochraceous yellow with brownish yellow bristles 

 and hairs, including anterodorsal row of short bristles on hind tibiae. 



Preabdomen 1.6 (1.4) mm. long and 1.4 (1.3) mm. wide, with 

 coloration and black markings as in cressoni, but second tergite in all 

 specimens examined spotless; fifth tergite about as long as sixth (0.20 

 (0.25) mm.). 



Sheath of ovipositor in specimens examined, strongly flattened dor- 

 soventrally and slightly wider at base (0.73 (0.77) mm.) than long 

 (0.57 (0.59) mm.); at apex wider than in cressoni (0.34 0.34) mm.), 

 and basally only 0.14 (0.11) mm. high, shining testaceous yellow, with 

 pair of round brown dots at apex as in cressoni. Apical part of 

 ovipositor is translucent testaceous yellow, dorsoventrally flattened 

 and acutely lanceolate. 



Species originally described from Peru, 



Type: In the Dresden Museum. 



Specimens examined: Peru; Tingo Maria, Varias-Aguaytia, 2 99, 

 September 6-7, 1944, Hambleton; San Bartolome 9, July 19, 1932, 

 E. Wnie (allinUSNM). 



Tomoplagia ovalipalpis, new species 



FiGUEES 100,a-e; 102,w; Plate 24, figure 20 



Belongs to the pleuralis-reimoseri group and may easily be dis- 

 tinguished from the allied species by the broad-oval maxillary palpi 

 and other characters given in the key (p. 329). 



Female: Length of body 4.2 mm.; wing 4.9 mm. long and 2.1 mm. 

 broad, 2.3 times as long as broad. 



Head testaceous yellow, postcranium brownish yellow; 0.77 mm. 

 long, 1.43 mm. wide and 1.20 mm. high, almost twice as wide as long. 

 Frons at vertex 0.61, at anterior margin 0.45 mm. broad, and at 

 median line 0.57 mm. long, broader than one eye. Oral margin of 

 mesofacial plate raised and prominent. Inferior part of cerebral 

 plate slightly raised. Antennae testaceous yellow, mouthparts 

 brownish yellow, except for the testaceous yeUow narrow basal part of 

 the broad-oval, straight maxillary palpi. Postpedicel wide-oval, 0.25 

 mm. long and 0.18 mm. wide, 1.4 times as long as wide; seta bare, 

 shining black except for the thickened testaceous yellow basal fifth; 



