8 THE CANADIAN ENTOMOLOGIST. 



Three cubital cells Liacos, Guerin. 



= Triliacos, Sauss. et Sich (pariim.) 

 ('ryi)e L. dimidiata, Guerin.) 



SuuFAMiLV II. — Eliding'. 



This subfamily is separated from the Scoliiiue by having two 

 recurrent nervures, and both being received by the second cubital cell. 

 It is the older type of the two subfamilies, and is clearly shown by 

 the more numerous cells in the front wings. 



The present conception of the genus Elis appears to be wrong. 

 Elis, as established by Fabricius, was a most composite group, and some 

 of the species originally placed in it by Fabricius did not even belong to 

 the same family. 



Fabricius, when he established Elis, placed under it seveji species, 

 viz.: (i) E. sexciticta, (2) E. interrupta, (3) E. seniles, (4) E. y-cincta, 

 (5) E. cylindrica, (6) E. volvulus and (7) E. cochleata. Subsequently, 

 some of these were placed in other genera, and the first species, 

 Elis sexcincta, became the type of the genus Myzine, Latr. After going 

 carefully over the literature, I find that the only species left to which the 

 Fabrician name Elis may be applied is Elis (Scolia) y-cincta. This 

 must now be considered the type of the genus ; it will throw out 

 the generic names, Colpa, Lep.j Compsomeris, Lep., and Dielis, Sauss., 

 and what we have been calling Elis becomes Trielis, Saussure. 



Table of Genera. 



1. Front wings with three ox four cubital cells 2. 



Front wings with ttvo cubital cells. 



Three discoidal cells Elis, Fabricius. 



= Compsomeris, Lep. 



= Colpa, Lepel. 



== Dielis, Sauss. 



(Type Scolia 7-cincta, Fabr.) 



2. Front wings with three closed cubital cells. 



Three discoidal cells : Trielis, Saussure. 



= Elis, Sauss. et Auc. 

 (Type Elis consanguinea, Sauss.) 



Four discoidal cells Trisciloa, Gribode. 



(Type T. Saussurei, Grib.) 

 Front wings w'wh four closed cubital cells. . Tetrascolia, Ashm., g. nov. 



(Type Compsomeris Urvillii, Gue'r.) 



