AMERICAN DIPTERA. 



255 



sate. Wings hyaline, snbcinerascent, the outer half of the marginal cell dis- 

 tinctly ciuerascent, veins dark fuscous, apical part of the costa black. 3.3 mm. 



Carolina : Massachusetts, Georgia, Alabama, Louisiana, Kansas, 



Ohio, Michigan. 



MEGHYPEKUS Loew. 



Small black species. Antennae short, apparently two-jointed. 



Bristle terminal, thickly pubescent. Proboscis very short. Eyes 



bare, males holoptic, females broadly dichoptic. Thorax large. 



Legs rather short, wholly glabrous, hind tibiae somewhat broadened, 



metatarsi of all the legs lengthened. Wings unspotted, third vein 



simple, fourth vein forked; discal cell present, with two apical veins. 



Third antennal joint twice as long as broad ; abdomen shining. 



niti<lus sp. nov. 

 Third antennal joint but little longer than wide ; abdomen opaque, velvety black. 



occidens Coquillett. 



Meghyperus occideiis Coquillett. 

 Proc. Nat. Mus., 1895, p. 435. 



Black, including antenna, proboscis, palpi, halteres and legs; third antennal 

 joint conical, slightly longer than wide, the arista two-thirds the length of the 

 third joint. Thorax lightly gray pollinose; scutellum with six black bristles. 

 Abdomen opaque velvet black; hypopygium small, porrect, slightly longer than 

 the seventh segment. Legs rather robust ; upper side of the hind femora with a 

 fringe of whit« hairs, hind femora somewhat broader than any of the others, 

 hind tibia; greatly dilated ; hind metatarsi nearly twice as thick as any of the 

 others. Wings hyaline, stigma and veins brown, anal cell nearly as long as the 

 second basal. 2-3 mm. 



Southern California. 



MegUyperiis nitidns sp. nov. (Fig. 72, 73). 

 Length 2.5 mm.— Black over all, shining. Eyes of the male contiguous, of the 

 female" widely distant. Vertex of the female shining. Antennje stout, third 

 joint triangular, twice as long as broad, its arista equal to the greatest width of 

 the joint, stout. Proboscis directed forward in the male specimen, downward in 

 the females, nearly as long as the head-height. Thorax with pale yellow bris- 

 tles, the acrostichals and dorsal rows distinct, scutellum with six pale bristles. 

 Thorax lightly dusted on pleurae and coxse. Abdomen shining above and below, 

 with scattered pale hairs. Legs with short pale hairs, but with no bristles, 

 front femora moderately stout, the other femora less thickened ; hind tibiae 

 gradually clavate, compressed ; metatarsi about equalling the next three joints, 

 not enlarged. Halteres black, pedicel slender, knob large. Wings clear hyaline, 

 nerves yellowish, an infumated stigmal spot present, anal cell equalling the 

 basals in length, anal angle rectangular. 



Three specimens; Moscow, Idaho, June 17, 1895, Prof. J. M. 

 A.ldrich collector. 



The tips of the abdomen of all three specimens are eaten by para- 

 sites, therefore nothing can be stated about the sexual characters. 



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



