248 THE CANADIAN ENTOMOLOGIST. 



3. Second cubital cell receiving only one recurrent nervure 4. 



Second cubital cell receiving both recurrent nervures, or the first is 



interstitial with the first transverse cubitus. 



Submedian cell shorter than the median ; cubitus in hind wings 

 originating beyond the transverse median nervure ; eyes within 

 nearly parallel; mandibles excised beneath. .Sphodrotes, Kohl. 

 Submedian and median cells equal or nearly, the transverse 

 median nervure being interstitial or nearly, with the basal 

 nervure ; cubitus in hind wings originating beyond the transverse 

 median nervure ; eyes convergent above ; mandibles excised or 

 sinuate beneath. 



Hind tibiiB smooth, not serrate Niteliopsis, Saunders. 



Hind tibise strongly serrate and also spinose ; mandibles with 

 a deep emargination beneath ; clypeus transverse, truncate 

 and with a transverse impression along the anterior margin ; 

 hind coxse normal, without a spine or tubercle. . . .(Aft-ica). 



Pseudohelioryctes, Ashm., n. g. 



(Type P. Foxii, Ashm.*) 



Submedian cell a little longer than the median ; cubitus in hind 



wings originating before the transverse median nervure ; eyes 



more or less divergent above ; mandibles beneath with a deep 



incision before the middle Scapheutes, Handl. 



4. Second cubital cell receiving the second recurrent nervure at the 



extreme apex, being almost interstitial with the second transverse 



cubitus 5. 



Second cubital cell receiving the second recurrent nervure at or near 

 the middle. 



Transverse median nervure interstitial with the basal nervure or 

 nearly ; first recurrent nervure interstitial with the first trans- 

 verse cubitus . Solierella, Spinola. 



Transverse median nervure not interstitial, joining the median 

 vein a little beyond the origin of the basal nervure ; first 

 recurrent nervure not interstitial with the first transverse 

 cubitus Sylaon, Picciola. 



* P.seudohelioryctes ? Foxii, n. sp. 



= Helioryctes melanopygus, Fox nee Smith, i'roc. Acad. Nat. Sc. Phil., 

 1896, p. 554, 

 Female. — Length, 14 mm. Head, thorax, antenn;\\ and all coxre and trochanters, 

 black ; rest of legs and the abdomen, except the pygidium above (which is dusky), 

 ferruginous ; wings fuscous black. 



