74 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 79 



Type locality. — New York State (Asa Fitch). 



ry;?e.— Female, U.S.N.M. No. 1832. 



No other type material in the United States National Museum 

 collection. 



Remarks. — Redescribed from the type, the types of synonymous 

 forms, and a series of specimens from various regions in the eastern 

 half of the United States. 



Ashmead pointed out that D. hyalipennis Walsh is conspecific with 

 querci-lanae (Fitch). He likewise showed that D. shnplidstigina 

 Walsh is also this Fitch species, but only established the identity of 

 Walsh's species with dorsalis (Fitch), a dark color variety of 

 querci-lanae. There are present, in addition to the dark specimens, 

 typical light-colored forms of sitiipliclstigma that agree fully with 

 the Fitch type and check with the descriptions of the typical querci- 

 lanae. A comparison of the above forms and the available rearing 

 data leave no doubt about the correctness of Ashmead's conclusions 

 that siniplicistigma and querci-lanae are conspecific. 



Professor Smith placed flavicollis Ashmead in synonymy, renam- 

 ing the species -floridana in view of the preoccupation of the name by 

 ■flavicollis Walker. D. floridana is no doubt just another lot of 

 querci-lanae (Fitch). All the type specimens, except one, are males. 

 The female is a good querci-lanae., and the males mostly come close 

 to variety dorsalis (Fitch), and agree in color variation with series 

 since reared from galls of Andricus flocci (Walsh) on Quercus alba., 

 the hosts of the types of querci-lofnae. 



Similarly, micJdganica Girault, represented in the United States 

 National Museum collection by the type and a paratype, both fe- 

 males, are true querci-lanae (Fitch), agreeing in all essential respects 

 with the typical light color form of this species. 



No other species of this genus has perhaps been collected and 

 reared so commonly as this one.- Following are the records at hand : 

 The female type alone remains of a series reared by Doctor Fitch in 

 New York State from galls of Andricus flocci (Walsh) {Cynips 

 quercus-lana Fitch) ; Walsh's series {simplicistignia) came from galls 

 of Cynips pezomachoides Osten Sacken and Biorhiza forticornis 

 (Walsh), both on Q. alha^ and A. petiolicola (Bassett) on swamp 

 white oak {Q. bicolor), all presumably from northern Illinois; Ash- 

 mead's floridana (flavicollis) specimens were "bred from an unde- 

 scribed Cynips gall," Jacksonville, Fla. ; and the Girault types of 

 mdchiganica are from a " white oak woolly twig gall " (Ace. Cat. 737, 

 Agr. Coll. Mich., June 27-28 and July 9, 1887) in Michigan; another 

 Ashmead series from Jacksonville, Fla., has on several pins the label 

 "TV. (Neurotenos) ma jcdis, on Q.alh a ^\' a iew old s-pecimens are labeled 

 "-4. flocci,''^ and Doctor Kinsey reared a large series, both sexes, from 

 a variety of this gall as follows : Jacksonrille, Tex., Q. stellaia; Big 



