214 



PSYCHE. 



[May-July 1889. 



of Fitch and ziczac and octonotata of 

 Walsh. The unicolorous species are 

 querci Fitch com?nissuraIis Stal and 

 aus trails and albicans of Walsh. Rosae 

 Harris, I think, belongs here. 



There are no described species of 

 Eupteryx in North America but I am 

 acquainted with several undescribed. 



One would expect that several Amer- 

 ican species would be the same as 

 European but although I have compared 



our species with the descriptions of the 

 European insects and have had a con- 

 siderable set of European typhlocybini 

 for comparison I have yet to find one 

 identical. 



This family is certainly a promising 

 one for study as the literature is small 

 and, therefore, easily obtained and a rich 

 harvest of new species is waiting to 

 reward the student. 



NOTES ON CERTAIN CYNIPIDAE WITH DESCRIPTIONS OF 



NEW SPECIES. 



BY C. P. GILLETTE, AMES, IOWA. 



{Concluded from p. r88.) 



NEW SPECIES DESCRIBED. 

 <JALLS ON WHITE OAK (^^uercus alba) . 



Andricus foliaformls^ n. sp. 



Gall. Small wart-like projections 

 thrown out from the mid-rib on the 

 under side of the leaves from which 

 there grows a leafy expanse that extends 

 on all sides like the corolla of a rotate 

 flower. (Fig. i.) 



Gall-fly : Female. Head, dark r eddish 

 brown with median line of face, vertex, 

 and occiput almost black ; front and 

 genae with many short gray hairs ; ver- 

 tex bare. Thorax from collar two- 

 thirds of the way to the scutellum, 

 between the parapsidal grooves, black ; 

 the remainder of the thorax brown. 

 Parapsidal grooves distinct but not 

 deep ; outside of the grooves on either 

 side a longitudinal patch of black is 

 separated from the central black portion 

 by a yellowish-brown line along either 

 groove. Dorsal portion of thoi'ax 

 sparsely haired ; pleurae rather densely 

 haii^ed ; tegulae brown. Abdomen 

 brown, smooth and shining, the dark- 

 est portion being on the posterior dorsal 

 part. With a power of 50 diameters, 

 minute punctures can be seen on the 

 abdominal segments ; second segment 

 sparsely haired on sides. Scutellum 

 with two fovae at base separated from 

 each other by a narrow ridge ; rounded 

 behind, black at base, changing to 



^ . 



