140 A.' Arsöne Girault. 



two species are identical. In flavipes, the legs (including coxae), ab- 

 dominal petiole and three proximal antennal joints are uniformly 

 chrome orange in color, the distal tarsal Joint, the head and body 

 and the rest of the antennae black, the second fuaicle Joint with some 

 brownish. From the preceding species {fumipenne), this species is very 

 distinct in morphological characters but nearly identical in color 

 excepting for the chrome yellow antennal funicle and distal tarsal 

 joints of fumipenne. The antennae are nearly similar structurally 

 in both species, but the fore wings differ remarkably in discal ciliation 

 being fine in the one and coarse in the other. The antennae of the 

 males of flavipes and striaticorne are identical excepting in the relative 

 size of the pedicel; in striaticorne this Joint is larger, being at 

 least half as long as the proximal funicle Joint whereas in flavipes 

 it is smaller, being barely a third the length of the proximal Joint. 



Literature Referred To. 



1888. Ashmead, William Harris. Canadian Entomologist, London, 

 Ontario, XX, June. 



1910. Brocher, Frank. Annales de Biologie Lacustre, Bnixelles, 

 IV, August. 



1910. Schulz, W. A. Ibidem. 



1911. Ciirault, Alexandre Ars6ne. Transactions American Ento- 

 mological Society, Philadelphia, XXXVII, April, p. 67. 



