40 Journal New York Entomological Society. tVol. XX. 



show the wide variation in the size of the wings of the various 

 specimens. 



The only other species which shows such an abundance of super- 

 numerary cross-veins is Tricyphona inconstans Osten Sacken. (See 

 Johnson, Variation in the Venation of Amalopis inconstans O. S. ; 

 Ent. News, v. 12, pp. 305-307.) 



Acknowledgments are to be made to Mr. J. S. Houser and Mr. 

 M. C. Van Duzee for their kind donation of material. We especially 

 wish to thank Dr. Jas. G. Needham for his assistance and advice in 

 the preparation of this paper. 



THE OCCURRENCE OF THE MYMARID GENUS 

 STEPHANODES ENOCK IN NORTH AMERICA. 



By a. a. Girault, 

 Brisbane, Australia. 



I have accidentally captured a species of the recently described 

 British genus Stcphanodcs Enock in Illinois. 



The very close relation of this genus to Polyncma Haliday should 

 be emphasized. It bears the same relation to that genus that Anaphoi- 

 dea Girault bears to Anaphcs Haliday and that Paranagnis Perkins 

 bears to Anagrns Haliday, though, perhaps still less separable. At 

 the best, all three are no more than subgenera. The genus Stcpha- 

 nodcs was described in 1909 by Enock (1909) from Stcphanodcs 

 clcgans' Enock occurring at Woking, Burnham Beeches and '^ ^merset, 

 England. It differs from Polyncma according to Enock in having the 

 scape armed beneath with a series of minute teeth, similar to those 

 found along the under side of the posterior femora in the Chalcididse; 

 and in habitus as expressed in its " gait " when in locomotion.^ The 

 habitus of Mymarids differs considerably ; in the same way Tricho- 

 grammatids differ and the two families may be distinguished at a 



' The third characteristic, the carina on the head, is common to several 

 genera, including Polyncma ; also in Polyncma bifasciatipcnne (Girault) the 

 scapes are slightly asperate beneath and the first funirf' joint very long, 

 another difference between Stcphanodcs and most Polynemas. In some of the 

 latter, several tuberculate teeth are present on the scape beneath. 



