302 HYMENOPTERA. 



wide, only half as long as the proximal funicle joint. Parap- 

 sidal furrows complete. 



From this second specimen an antenna was removed and 

 mounted in balsam, so as to aid in comparing the relative 

 size and shape of the joints (^ Hym. slide 119, U. S. National 

 Museum). The foregoing two specimens are undoubtedly 

 the original specimens of the species and the types. 



This species is closely allied with the following species : 

 striaticorne Girault, enchenopce Girault and consobrimcs Girault. 

 I have mistaken it for all three, yet there are differences 

 which I may be able to make clear, especially in the table of 

 species given beyond. From striaticorne it differs in having 

 less graceful, somewhat broader fore wings (what is said 

 concerning this in Girault. 1911 a, is erroneous, wrongly de- 

 termined specimens of howardii there used for comparison) 

 with the discal ciliation fine yet each cilium longer than in 

 striaticorne and with the marginal cilia distinctly longer ; the 

 fore wing instead of being long-elliptical is more ovate, 

 broadening more distad. From the species enchenopcs differ- 

 ing at once by having the discal ciliation of the fore wing 

 finer and the fore wing itself broader and the marginal cilia 

 longer. From consobrinus it may be distinguished by its still 

 much broader fore wings. Its position in the table of species 

 will perhaps aid in identifying it better. 



The species is recorded by Nason (1906, p. 8) in his 

 Algonquin (Illinois,) list, but an examination of the single 

 female specimen shows that it is Poly7iema sibyl la Girault, 

 and not howardii. Also Smith (1899, 1910) records it from 

 New Jersey ; it is quite possible that it occurs there but as 

 yet has not been found in the eastern United States. 

 2. Polynema striaticorne Girault. 



Since fully describing this species (Girault, 1911 a) I have 

 seen and studied the following specimens besides the types : 

 From the U. S. National Museum collection, remounted 

 in balsam from tags — a single female labelled " Roslyn, 

 Va., June 22"; a single female labelled " Ind. 700"; a 

 female placed with a female of bimaculatipenne and a male 

 oigracuhis, all labelled " Cosmocoma cf 9. From wheat, 



