NO. 1979. DESCRIPTIONS OF NEW HYMENOPTERA, 6— CRAWFORD. 255 



Type.— Csit. No. 15303, U.S.N.M. 



Described from three females and one male reared from Cerina 

 hutyrospermi by Mr. J. Vuillet, together with Anastatus vuilleti Craw- 

 ford on which it is probably a secondary parasite. The material 

 was received from Mr. A. Vuillet of the Station Entomologique de 

 Paris. 



THRIPOSOMA, ne-w genus. 



Belongs to the Tetrastichini; form greatly flattened and TJirips- 

 Hke, whence the name; antennaB with one minute ring joint; funicle 

 three-jointed, the first joint subquadrate, the second and third trans- 

 verse, the first shorter than the pedicel; antennae subclavate, gradu- 

 ally enlarged from base of funicle to middle of club; mesoscutum 

 without a median groove; scutellum with two delicate parallel fur- 

 rows; propodeum with a median carina which is not very distinct; 

 propodeal spiracles small, round, situated basad; marginal vein 

 slightly thickened throughout its whole length; sheaths of ovipositor 

 exposed for about one-thiird the length of the abdomen. 



The flattened form readily distinguishes this genus from any other 

 in the tribe. 



Type of the genus. — Tliriposoma graji CraAvford. 



THRIPOSOMA GRAFI, new species. 



Female. — Length about 1.50 mm. (to tip of abdomen); sheaths of 

 ovipositor exposed 0.25 mm. Entirely very dark green, the legs 

 brown with greenish reflections on femora and tibiae; scape greenish, 

 rest of antennae brown; head finely reticulated, the face with scattered 

 large punctures; mesoscutum and scuteUum with reticulate lineola- 

 tions, those on the scutellum appearing longitudinal; sculpture on 

 propodeum resembling very shallow and indistinct thimble-like 

 punctures, so shallow as to be distinct only in certain lights; wings 

 hyaline, veins brown; abdomen finely reticulated. 



Male. — Unknown. 



Habitat. — Hollywood, California. 



Three specimens with the following additional data: "In sunflower 

 with aphids and thrips, 22.11. 12, Graf, collector, Chittenden (Bureau 

 of Entomology, U. S. Dept. Agric.) No. 2177." 



Type.— Ca,t. No. 15416, U.S.N.M. 



The species is named after the collector. 



ZAGRAMMOSOMA FLAVOLINEATA, new species. 



Female. — Length about 2 mm. Head yellow, face with a narrow 

 median black stripe, oceUar area black, rear of head with two vertical 

 black lilies, on lower posterior orbits a black mark roughly shaped 



