LEPIDOPTERA 



TINEINA. 



61 



PSYCHID/E. 



The basket worms or bag worms belong to this family. None of the 

 species are common in California. 



Chaiia fragmentella Edw. 

 Hyaloscotes fumosa Butl. 



Belnoptera fratercula Pag. 

 vitrina Boisd. 



Oiketicus davidsoni Edw. 

 Thyridopteryx meadii Edw. 



THYRID>e 



Dysodia oculatana Clem. 

 Hexeris enhydris Grote. 



COSSID/C:. 



Cossus is quite common on cotton- 



The Cossidse have wood boring larvae, 

 woods and poplars, and Prionoxystus 

 on locust trees. The pupal skins of 

 these insects are conspicuous objects 

 on the trunks of these trees. 



Cossus populi Walk. 

 Hypopta bertholdi Grote. 



riversii Stretch. 

 Prionoxystus robiniae (Peck.). 

 Xyleutes robinse — Prionoxystus. 



Figure 31. Venation of Cossidse and 

 related moths in which the independent 

 vein crosses the cell. Dotted lines are 

 veins not uniformly present. 



SESIID/C. 



Day flying moths with partly transparent wings making them resemble 

 wasps. The larvae bore into plants. The most injurious species is the 

 peach tree borer, Sanninoidea. Our species is very similar to the equally 

 troublesome eastern S. exitiosa. 



The food plants of the other species are: — Pines and Redwood Vespamia, 

 Poplars ^geria and Memythrus, Locust Memythrus, Willows ^geria, and 

 Sesia albicornis, Sumac Melitta, Galls on Mesquit Sessia prosopis. Currants 

 and Gooseberries Sesia tipuliformis and Strawberries Sesia rutilans. 

 SYNOPSIS OP GENERA. 



Sesia. >^geria and Paranthene: tongue rudimentary, the latter with tibisE) 

 tufted. Albuna and Memythrus: hind independent from middle of cross- 

 vein, the latter with palpi long haired. Sanninoidea: abdominal tufts of male 

 not fan-like, female abdomen with lateral tufts. 

 Aegeria hemizonse — Sesia. lupini — Sesia. 



impropria — Sesia. mandarise — Sesia rutilans. 



