THK CANADiAlS KNTOMOLOGlS'l. 371 



7. Arolia free, coiivetging towards the apex. Wing-cell without a 

 hook. PronotLim \viih(^ut apical constriciion. Genre very rarely 

 high. LoFc^ sometimes separated also beneath. Eyes inwardly 

 mostly emarginate. Tibii« slender, tyj'jically without 

 l^unctures 7, Heteroiomini (Cyllocoraria). 



7a. Arolia free, converging towards the aj)ex or wanting. Wing-cell 

 very rarely without a hook. Pronotum with apical constriction 

 (which is sometimes hidden under the posterior margin of the 

 posteriorly-produced hind margin of the vertex). Lorye narrow, 

 sharply separated above and beneath 8, Pilophoriiti. 



7b. Arolia very delicate, or absent (sometimes clearer in some Macrolo- 

 phini, but fused with the short claws). [^V^ing cell without hook. 

 Pronotum with apical constriction (e)] 8. 



7c. Arolia free, converging towards the apex, or parallel. Wing-cell 

 very rarely with hook. Pronotum without apical constriction. 

 Vertex wnde. Gen?e high. Rostrum strong 11. 



8 Head elongate, feebly declivous. Lorre sharply separated above 

 and beneath, narrow. Tarsi very slender. Sides of pronotum 

 acute, at least posteriorly 9, Fuiviini. 



8a, Head vertical 9. 



9. Head not strongly elongate ventrally. Ciypeus not humpily swollen 

 in the middle 10. 



9a. Head ventrally strongly elongate. Cly|)eus humpily swolltn in the 

 middle. Genae very high. Neck very short. Tarsi slender, first 

 segment long 14, Cylapini. 



10. Arolia very delicate, or fused with the short claws. Loiae sharply 



separated above and below, 



narrow 10, Macrolophini (Dicyj^haria). 



loa. Arolia absent. Lorae only separated above, arched. . 11, Gargd7ii7ii. 



11. Body generally robust, never constricted in the middle. Lorae 



generally separated above and below, but wide. Tibiae often 

 robust. Membrane with two cells. . . 12, Halticini (Labopar'a). 

 iia. Body generally narrow, constricted in the middle. Lorae separated 

 only above. Tegmina wings usually very rudimentary. ]\Iem- 

 brane of macropterous form without cells, with irregular 

 nerves 13, Myrniecophy'mi. 



(e) Added in MS. by Dr. Reuter. 



