190 



THE MONTHLY BULLETIN. 



may include a large limb of a tree. When full grown the larvae leave 

 the web nnd descend to suitable pupal quarters. There are two broods 

 a year, the second appearing late in the summer. 



Distribution. — Common throughout the Sacramento and San 

 Joaquin valleys and is the webworm most often encountered. 



Food Plants. — This species feeds upon the foliage of a great number 

 of wild and ornamental trees and shrubs, as well as upon fruit trees. 

 During the past year much damage was done to willows in the San 

 Joaquin Valley, while peach trees suffered in Sutter County. 



Control. — The application of arsenical poisons, the collecting of the 

 cocoons and the burning of the nests or webs containing the larvae with 

 a torch are the remedies used against this pest. 



Natural Enemies. — Internal parasites play a very important part in 

 the control of this moth. 



THE STRAWBERRY CROWN MOTH. 



Sesia rutilans (Edw.) (Family Sesiidgg).* 



(Synanthedon rutilans Edw.) 

 (Fig. 177.) 



General Appearance. — The adults are clear-winged moths, the 

 females having a wing expanse of about seven eighths of an inch, the 

 males being somewhat smaller. The ground color of the body is black 

 with oblique longitudinal stripes on the thorax and yellow bands 

 around the abdomen. The antennge are bluish black and the legs yellow 

 with black rings. The fore wings are almost entirely covered with 

 brown and black scales having a purple iridescence. There are yellow 



strawberry crown 

 moth, Sesia rutilans (Edw.). A, crown 

 of strawberry plant showing chrysalis 

 from which the adult has escaped ; B, 

 larva; C, adult. (After Klee. ) 



stripes between the veins and the outer border is brown and yellow. 

 The hind wings are nearly all transparent with brown border. The 

 tuft at the tip of the abdomen is yellow and black. The males are 

 much darker than the females, having fewer and narrower yellow bands 

 on the body and the anal tuft is larger and all black. The larvie are 



*The name ^^^^geridse is still applied to this family by many entomologists. 



