OF WASHINGTON. 181 



Padre Island, Texas. A male specimen collected June 29 by 

 Mr.^C. H. T. Townsend. 



Type. No. 7952, U. S. National Museum. 



Dioctrodes, n. gen. 



Near Dioctria, but the face gently convex, antennae not inserted upon 

 a protuberance, etc. Head twice as broad as high, front slightly widening 

 upwardly, face bare above the mystax, bristles of the latter nearly in a 

 single row, an isolated bristle above each lower corner of the face, oral 

 margin scarcely projecting; antennae twice as long as the head, the first 

 joint, one and one-third times as long as the second, the third more than 

 twice as long as the first two together, of nearly a uniform width, bearing 

 a small, forwardly directed spine a short distance in front of the middle 

 of the upper side and with a slight depression just beyond the spine, 

 style not apparent; body slender, scutellum bearing a marginal pair of 

 bristles, otherwise bare, abdomen almost bare, legs rather slender, bearing 

 a few slender bristles, otherwise almost bare, front tibiae devoid of a termi 

 nal claw, pulvilli large; marginal, submarginal, posterior and anal cells 

 open, fourth posterior cell separated from the second basal by a cross-vein. 



Type: the following species : 



Dioctrodes flavipes, n. sp. 



Black, the halteres, femora, tibiae except apices of the hind ones, and 

 bases of the tarsal joints, yellow, the hairs and bristles whitish ; head 

 grayish pruinose, the front except the narrow lateral margins and center 

 of face, polished. Thorax yellowish pruinose inside of the humeri, at 

 base of wings, on hind margin of mesonotum, on the pleura and meta- 

 notum ; scutellum with a median vitta and the under surface yellowish 

 pruinose; mesopleura, sternopleura and pteropleura bare. Abdomen 

 punctured, not pruinose except a small spot at hind angles of the first five 

 segments. Femora nearly bare, a few hairs and bristles on the under 

 side. Wings hyaline, the veins brown. Length 7 mm. 



Missouri. A male specimen, collected June 19. 

 7ype. No. 7953, U. S. National Museum. 



Metapogon, n. gen. 



Near Cyrtopogon* but the face is nearly flat, only slightly swollen on 

 the lower part, the mystax very sparse except along the oral margin and 

 composed chiefly of bristles, etc. Head unusually broad, over twice as 

 broad as high, deeply excavated on the vertex, ocellar tubercle very 

 prominent, front only slightly widening upwardly, at its lower end about 

 three-fifths as wide as either eye, face slightly widening below, subequal 

 in width to the front, eyes unusually prominent (nearly as in Holcocephala 

 abdominalii}\ antennae less than twice as long as length of head, first 

 joint subequal in length to the second, the latter as wide as long, each 



