AMERICAN IJIPTERA. 211 



deeply concave anteriorly ; third vein widely divergent from the fourth, the first 

 posterior cell widely open. 



A cotype specimen measures 1.3 mm. 

 St. Vincent, West Indies. 



Drapetis unipila Loew. 

 Cent. X, 60. 



Black, very shining. Antennae concolorous, the third joint short an'd ovate. 

 Palpi almost black. Thoracic dorsum provided with short cinereous pile and 

 some scattered longer black hairs. Abdomen black, the second segment, except 

 the apical margin, and the third sometimes at the base, dull whitish. Trochan- 

 ters reddish-brown. Femora black, except the reddish apex, the front ones 

 strongly thickened towards the base, the hind ones moderately thickened, mid- 

 dle femora not thickened ; all the femora provided at the base below with a sin- 

 gle hair, the hind one, however, finer and more diificultly seen ; moreover, the 

 front femora bear on each side, the middle ones on the front side, a subapical 

 hair, the hind femora bear on the forward side two long hairs, one subapical, the 

 other a little more distant from the apex ; the anterior tibiae beyond the reddish 

 base often fuscous and provided with apical setulse ; hind ones badious or red- 

 dish, above, except the base and apex, often fuscous and there armed with the 

 long hair, much further from the apex than from the base; apex of the hind 

 tibiae dilated, so that the tarsus is inserted not at the apex but a little before 

 it. Anterior tarsi dark brown, toward the base often reddish, hind ones red- 

 dish; last joint blackish always, the three preceding often fuscous. Halteres 

 whitish. Wings hyaline, veins pale yellowish brown ; first and second longitu- 

 dinals moderately and evenly curved, the third meeting the costa a little before 

 the apex of the wing, slightly sinuous over all and slightly incurved toward the 

 apex, fourth slightly sinuous, and almost parallel with the third ; posterior basal 

 cell much longer than the anterior. Length 2 mm. 



Texas. 



Drapetis feinoralis Wheeler et Melander (Fig. 13). 

 Biol. Cent.-Am. 1901, Dipt. Suppl. p. 375. 



Shining black; front and proboscis black; antennae and palpi fuscous; front 

 broad; halteres whitish; legs yellowish brown, four anterior femora darker 

 above, hind femora darker on distal half, tarsi darker, especially hind metatarsi, 

 which are equal in length to the remainder of the tarsus; hind tibise with a short 

 thick terminal spur; wings grayish, veins strong, brown, third and fourth veins 

 gently curved towards each other near the tip, posterior basal cell twice the 

 length of the first. 2 mm. 



Mexico, Vera Cruz and Tabasco. 



The scutellum has four fine marginal hairs. On the outer side 

 the hind tibise have a strong preapical bristle. The pubescence of 

 the thorax is white. 



Drapetis septentrionalis sp. nov. 

 Very similar to the preceding, but diflers in its much smaller, more graceful 

 stature. The hairs of the thorax are less conspicuous, dusky and white inter- 



TKANS. AM. ENT. SOC, XXVIII. JULY, 1902 



