182 ENTOMOLOGICAL SOCIETY 



bearing a stout bristle on the under side, third joint nearly twice as long 

 as the first two together, slightly widening outwardly, about five times 

 as long as its greatest width, style less than half as wide as the third joint 

 and at most one third as long; proboscis straight, tapering to the tip. 

 Mesonotum greatly swollen, provided with strong bristles. Abdomen 

 subcylindrical. Femora with long but slender bristles on the under side, 

 tibiae and tarsi with strong bristles, front tibiae devoid of a stout spur at 

 the apex, pulvilli well developed, hind tibiae and their tarsi somewhat 

 thickened, but not unusually thick. Marginal, submarginal and posterior 

 cells open, the anal open or closed in the margin, the fourth posterior 

 with a cross-vein at its base, the fifth separated from the discal by the fourth. 



Type: M. gilvipes, n. sp. 



Metapogon gilvipes, n. sp. 



Black, the first two joints of the antennae and the legs except the tarsi 

 toward their apices, brownish yellow, the halteres light yellow. Mystax 

 yellowish, its bristles arranged in three rows on lower half of face, bristles 

 of occiput whitish, those of the ocellar tubercle black. Antennal style 

 about one-third as long as the third joint. Bristles of mesonotum black, 

 the hairs very short and sparse, bristles and hairs of hypopleura white, 

 mesopleura, pteropleura and sternopleura bare; scutellum rather flat, 

 nearly bare, with a subapical pair of stout bristles. Abdomen yellowish 

 gray pruinose, the hind margin of the first segment, a large triangular 

 spot on the five succeeding segments, covering nearly the whole of the 

 hind end of each segment and prolonged nearly across the segment in the 

 middle, also the whole of the seventh segment and the genitalia, polished. 

 Hairs and bristles of the femora white, bristles of the tibiae and tarsi dark 

 brown, tarsal claws black. Wings hyaline, veins and cross-veins beyond 

 base of first submarginal cell indistinctly bordered with pale brown ; small 

 cross-vein near three-fourths of the length of the discal cell. Length 6.5 

 mm. 



Los Angeles Co., Cal. A female specimen collected by the 

 writer. 



Type. No. 7954, U. S. National Museum. 



Metapogon punctipennis, n. sp. 



Black, the first two joints of antennas, the tibiae, bases of tarsi, and ex 

 treme apices of femora, reddish yellow, the halteres pale yellow, all hairs 

 and bristles white. Antennal style about one-fifth as long as the third 

 joint, mystax ascending to about three-fourths height of face. Mesonotum 

 grayish pruinose, marked with a submedian pair of black vittae which ex 

 tend from the front end three-fourths of the distance to the scutellum, also 

 with a pair of blackish spots on either side, separated by the suture, hairs 

 of mesonotum very short and sparse, mesopleura, pteropleura and 

 sternopleura bare, scutellum flattened, nearly bare, thinly grayish pruinose, 



