Vol. 1.] 



Wood worth. — Wing Veins of Insects. 



141 



aside from the Tineina, are the Cossida?, Psychidffi, and related 

 Bombycoid moths. These are the ones separated by Comstock 



FIG. 07. Venation of the Tortri- 

 eidtf. 



FIG. 98. Diagram of tlie venation of 

 the Cossidte and other Bombycoid 

 moths, in whicli tlie independent 

 crosses the discal cell. 



as the " Generalized Frenata." The venation of these is shown 

 in Fig. 98. 



The variation in the higher moths and in the butterflies, as 



FIG. 100. Venation of butter- 

 FIG. 99. Diagram of the venation of the higher flies. Dotted lines indicate 

 moths. Dotted lines are variable veins. variable veins. 



shown in Figs. 99 and 100, is very slight. A great many 

 families and minor groups can be distinguished in their vena- 



