194 KANSAS UNIVERSITY SCIENCE BULLETIN, 



ing, reaching nearly to the antenniie ; antennie black, lower 

 half of third joint yellow, second joint somewhat cup-shaped 

 on distal end for the reception of the third joint, arista black ; 

 face gently receding, forming with the front an angle of about 

 forty-five degrees, black, covered with gray pollen, the median 

 carina reaching from front to oral margin ; mouth-parts small, 

 black; cheeks and occiput black, covered with gray pollen; 

 eyes elongate-oval. Thorax black, opaque ; mesonotum with a 

 pair of subdorsal, narrow, gray poUinose lines, which are slightly 

 divergent posteriorly, on the sides, and the pleural? gray polli- 

 nose ; halteres with brown base and whitish knobs. Abdomen 

 wholly black, subopaque. Legs black, base and tip of middle 

 tibise, middle and hind tarsi, except last joint, yellowish. 

 Wings hyaline, with a very faint tinge near apex, second vein 

 joins costa nearly opposite hind cross-vein, third and fourth 

 veins straight, gently divergent ; wings rather narrow. Length, 

 4 mm. 



One specimen. 



Pachylophus proxima, n. sp. 



Front broad and short, not projecting in front of the eyes, 

 slightly excavated, with a few minute hairs on anterior part, 

 brownish yellow on anterior margin and lower half of sides, 

 with a narrow silvery line along orbits, frontal triangle long 

 and broad, covering most of the front, shining, bluish black ; 

 face nearly perpendicular, the oral margin slightly projecting, 

 black, moderately shining; cheeks blackish, with a yellowish 

 cast just below the eyes, shining, about one-fifth as high as the 

 eyes ; occiput black, whitish pollinose along the eyes ; antennae 

 black, lower anterior angle of second joint, and the lower side 

 of the third joint yellow, end of second joint somewhat cup- 

 shaped, arista black ; compact, composed of three sections ; 

 mouth-parts black. Thorax black, mesonotum subopaque, with 

 two subdorsal gray pollinose lines diverging posteriorly, which 

 are finally connected by the posterior border being rather 

 broadly pollinose, sides, from humeri to scutellum, gray pol- 

 linose, which join the subdorsal lines anteriorly; scutellum 

 largely covered with pollen ; pleune shining ; halteres brown- 

 ish at base, knobs white. Abdomen black, subopaque. Legs 



