A. A. GIRAULT. 13 



ington, W. 3969), Illinois State Laboratory of Natural His- 

 tory, Urbana, Illinois. 



I have also found in the National Museum collection a 

 series of 6 cf's and 12 9 's mounted on tags (now remounted 

 in balsam) and labelled " Trichogramma ? minuta Riley, 

 Washington, D. C. " ; and three tagmounted specimens in 

 the same collection labelled " 3756°. Trichogi'amma on Heter- 

 opterous eggs? Issued Sept. 10, 1885." These were 1 cf, 

 2 9 's and have also been remounted in balsam. The former 

 have been designated as types. 



2. Abbella acuminata fAshmeadJ. 



Trichogramma aaiminatum Ashmead (1888), described 

 years ago belongs to this genus. It will be fully redescribed 

 later. 



3. TRICHOGRAM3IATOIDEA genus novnim. (Figs. 6 and 7.) 

 A genus closely allied with and resembling Pentarthron 



Riley, but differing from it in having slightly narrower fore 

 wings which lack the short oblique line of discal cilia run- 

 ning proximo-caudad from the stigmal vein and which have 

 longer marginal cilia, especially distad, somewhat as in Oli- 

 gosita Haliday of the other subfamily but not so long. 

 Further than these, the male antennae are distinctly seg- 

 mented, not nodular, 8-jointed and the antennse of both sexes, 

 in the type species at least*, bear peculiar, minute bladder- 

 like appendages on the funicle joints which have not as yet 

 been found to occur in any other genus. 



Normal position. 



Female. — Head normal, the eyes prominent, ovate, the 

 ocelli in a curved line on the vertex, the lateral ocelli not 

 touching the eye margins, at least their own width from 

 them, the head wider than the thorax; antennae (fig. 6) 

 inserted ventrad of the middle of the face, 6-jointed as in 

 Trichogramma Westwood and Peyitarthron Riley — scape, pedi- 

 cel, ring-joint, two funicle joints and a solid club ; scape 

 moderate in length, cylindrical, somewhat convexed ventrad, 

 subequal to the club in length and somewhat longer than the 



* I have since found them on lutea, the second species of the genus. 



TRAXS. AM. EXT. SOC, XXX VII. 



