THE CANADIAN ENTOMOLOGIST 339 



median basin which is finely, densely punctate. Otherwise as 

 in Eurytoma. From the female type. The species funehris 

 Howard differs in coloration but not much otherwise. In mexi- 

 canus, the marginal vein is distinctly longer t^ian the short stigmal, 

 but the abdominal segments remain about the same as in the geno- 

 type ^ the venation yaries somewhat and mexicanus should be 

 compared with funehris which it closely resembles. However, 

 the scape is reddish at base and the legs differ a little in colour. 

 Types examined. 



The male funicle is 4-jointed and this fact with the shape 

 of the abdomen are the true generic differentials. 



Systolodes brevicornis Ashmead. Genotype. 



The female type is missing, but some males (so identified by 

 Ashmead) I am unable to separate from the males of Brucho- 

 phagus funehris Howard and must conclude that the two are the 

 same. 



Specimens oi funehris were found in the U. S. N. M. collections 

 under the generic label, but they were from Washington, D. C. 

 In the original description of brevicornis, Ashmead himself states 

 that the two species are much alike. All other specimens placed 

 under this genus by Ashmead were funehris or closely allied to 

 it; none had the fourth abdominal segment greatly enlarged 

 unless subjectively to some astigmatic observers). The genus 

 Systolodes is a subjective abstraction! 



Eurytoma binotata Ashmead. 

 The name of this Japanese species is preoccupied. The new 

 name nippon is substituted for it. 



Rileya americana, new species. 



Female — Length 2.75 mm. 



Robust and resembling a large specimen of Eurytoma, the 

 abdomen compressed as in the genus. Pronotum longer than the 

 scutum. 



Black, the wings hyaline, the venation brown, the legs (except 

 coxae), scape and teguhie reddish yellow, the tarsi, knees and tips 

 of tibiai whitish; abdomen dark reddish except dorsad and the 

 petiole. Flagellum dark brown. Like cecidomyice' hs\\xne-3id but 

 thrice larger, segment 4 of the abdomen is not nearly half the 

 length of 5 as in that species, 3 is much curved circularly, not 



