52 



GUIDE TO CALIFORNIA INSECTS 



cogitata — Ag roper ina. 

 cuculiformis — Parastichtis. 

 genialis — Parastichtis. 

 occidens — Parastichtis. 

 pluviosa — Parastichtis arctica 



Yrias crudelis Grote. 

 Zosteropoda hirtipes Grote. 

 Zotheca tranquila Grote. 

 viridula — tranquila. 



NYCTEOLID>e. 



A small family represented in California by a single species. 

 Nycteola revanyana Scop. 



PERICOPID/C. 



A Mexican species extends into southern California. 

 Gnophaela hopfferi — latipennis. latipennis Boisd. 



DIOPTID/E. 



J' isfure 24. Pupa of the oak moth. 



The oak moth is very troublesome in the bay region completely defoliating 

 the live oaks every few years. It would not be very difficult to control by 

 spraying with lead arsenate if the trees were smaller. 

 Phryganidia californica Pack. 



NOTODONTID/E. 



Two moths of considerable importance belong to this family, Datana min- 

 istra which feed gregariously on walnut, and Schizura concinna, the red- 

 humped caterpillar of the apple. 



Alastor gibbosa — Nadata. 

 Cerura cinerea — Harpyia. 



cinereoides — Harpyia. 



paradoxa — Harpyia cinerea. 



Ccolepandra — Harpyia. 



Clostera incarcerata 



calls. 

 Coelodasys conspecta — 



cornis. 

 Datana californica Riley 



Melalopha api- 

 -Schizura uni- 



