MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID^. 311 



Metapleiira bare, faiutly striated. Tegulte rufous. Wings hyaline. 

 Legs browni.sh-piceous, the troclianters, tips of anterior tibia?, and all 

 tarsi paler. Abdomen polished, not longer than the head and thorax 

 together, the petiole striated, the seeond segment, at base on either 

 side, with two striated foveohe, the stria? extending to the middle of 

 the segment. 



Habitat. — Washington, D. C. 



Type iu National Museum. 



Bred February 25, 1881, from Cecidomyia symmetrica O. S., a gall 

 common on the leaves of various oaks. 



Polygnotus laticeps, sp. nov. 



S 9. Length, 1.2 to 1.9"". Polished black, impunctured; head 

 very wide, fully 4 times as wide as long antero-jiosteriorly ; the occi- 

 put transversely aciculated, the face tlat and highly polished, the lat- 

 eral ocelli about twice their width from the margin of the eye. An- 

 tennfP and legs black or brown-black, trochanters, base of tibijie, and 

 tarsi paler brown. Thorax rounded before, rather short, with distinct 

 parapsidal fnrrows posteriorly, the middle lobe projecting a little upon 

 the base of the scntelhun, the scutellum highly convex, polished, deeply 

 foveated along the base; metathorax short, the pleura faintly striated or 

 pubescent. Abdomen broadly ovate, the apical, ventral, and dorsal 

 segments with transverse rows of punctures. Wings hyaline. The an- 

 tenna' in the S terminate in a o-Jointed club, the joints, except the 

 last, being as broad or a little broader than long; in the 9 the joints 

 are longer than wide. 



Habitat, — Jacksonville, Fla. 



Types in Coll. Ashmead. 



Polygnotus hi emails Forbes. 

 Platufioster hicmalix Forbes, Psyche, Vol. 5, p. 39 (1888). 



$ 9. Length, O.SO to 1.40""". Black, polished; head about two 

 and a half times as wide as long antero-i>osteriorly, the vertex poster- 

 iorly oidy faintly aciculated, the face smooth, polished. Antenna' 10- 

 jointed, brown black, the flagellum twice as long as the scape; pedicel 

 as long as and much stouter than the first two funiclar joints; first 

 funiclar joint small, not longer than thick, ycllov»ish basally; second 

 larger and a little longer than the third; club 5-jointed, the joints, 

 except the last, a little longer than Avide, the last cone-shaped, one- 

 half longer than the preceding. In the male the second funiclar joint 

 is thickened, curved, and as long as the pedicel, the latter whitish or 

 yellowish at tip; the first funiclar joint small, contracted at base; club 

 0-jointed, villose, the joints oblong, slightly pedicellate, the first, the 

 shortest, narrowed basally, the last ovate, not quite twice as long as 

 the penultimate. Thorax ovoi<l, polished, the mesonotal furrows del- 



