168 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.48. 



as wide as the second and terminating in a spine ; the first dorsal seg- 

 ment of the abdomen is pale yellowish except at base. 



Type-locality. — Tullulah, Louisiana. 



Host. — Euplectrus platyhypenae Howard. 



Type.— Cut. No. 18338, U.S.N.M. 



Two female and two male specimens reared by R. A. Vickery and 

 recorded in the Bureau of Entomology under Webster No. 6439. 



The long antennae, punctate propodeum, and pale legs distinguish 

 this species from any of the other American species, having only one 

 bristle on the upper side of the submarginal vein. 



TETRASTICHUS HAGENOWI Ratzeburg. 

 Tetrastichodes floridanus Ashmead. 



In the United States National Museum are specimens of the above- 

 named species reared from the eggs of Blatta species, at Baton 

 Rouge, Louisiana. Comparison of the types of Tetrastichodes flori- 

 danus Ashmead with these specimens shows them to be identical. 

 The latter species is therefore a synonym of Ratzeburg's species. 



TETRASTICHUS VENUSTUS, new species. 



Female. — Length, 1.5 mm. Head and thorax obscurely lineolated; 

 funicle joints subequal, the first slightly longer' than the pedicel; club 

 a little broader than the funicle, 3-jointed, and about as long as the 

 two preceding funicle joints; median groove of the mesonotum very 

 fine; parallel grooves of the scutellum distinct; propodeum obscurely 

 sculptured; wings hyaline, the submarginal nervure with several 

 bristles on the upper side; abdomen not longer than the head and 

 thorax, thick dorso-ventrally at base and slightly conical. Body 

 color pale orange-yellow variegated with black; vertex yellow; face, 

 cheeks, occiput and spot surrounding the ocelli black; pro thorax 

 except laterally, large spot on the median lobe of the mesoscutum, 

 basal spot on scapulae, basal spot on axillae, propodeum entirely, 

 underside of the thorax, mesopleurae except the prepectus, and the 

 abdomen, except the first and second dorsal tergites, black; all coxae 

 and the basal half of the hind femorae black, the median and front 

 femorae also blackish basally ; rest of the head and thorax pale orange- 

 yellow. 



The color of this species is evidently quite variable. In paratype 

 (a) the head, except the cheeks and occiput, is entirely yellow and 

 the propodeum yellowish laterally. Paratype (b) is like the type, 

 except that the median and front femorae are deep black on the basal 

 half like the hind femorae. 



Type-locality. — Corcoran, California. 



Type.— Cut. No. 18339, U.S.N.M. 



Three female specimens from the type-locality, reared by T. D. 

 Urbahns from alfalfa seed-pods infested with BrucopJiagus funebris 

 and recorded in the Bureau of Entomology under Webster No. 6712. 



