38 



FAEMEES BULLETTN 843. 



DESCRIPTION. 



Tlie beetle, as represented iii figure 44, is oval and flattened 



9 



ana 



about one-half inch in length, 



but the size is somewhat variable. 

 The anteiuiae, or ''feelers/' are short 1 

 and toothlike, the eyes rather large,! 

 and each leg of the first pair is armed 

 in front with a conspicuous tooth. 

 Tlie upper surface has a broAviiishl 

 metallic luster, the color of the un-f 

 derside is coppery bronze, and the 



-The flat-hcadod applo-tivo uu 

 in its burrow. Enlarged. 



Fig. 44.— The flat-headed apple-tree borer (Chrif- 

 sobothrisfemorata): Parent beetle. Enlarged. 



part of the body underneath the 

 wmg covers is bright metallic green- 

 ish blue. The markings on the back^ 

 or wing covers, are well sho\\^l in 

 the illustration. 



The lai-va (fig. 45) when full grown is about an inch long, without 

 legs, and yellowish white. The second thoracic segment is much 

 broadened and compressed, giving the larva the appearance of having 

 a large flattened head. Tlie. larvae within their galleries always assume 

 a curved position, somewhat as is sho^^^l 

 in the figure. 



Tlie pupa (fig. 46) is also yellowish 

 white, somewhat more yellow than the 

 larva, and it shows the undeveloped ap- 

 pendages and structures of the adult 

 beetle. 



SEASONAL HISTOIJY AND HABITS. 



The beetles are to be found in pecan 

 orchards from ^larcli to November, but 

 tlioy are especially abundant at two 

 periods, namcdy, during May and- 

 from the middle of Auffust imtil mid 



Fig. 46.— The flat-headed apple-tree 

 borer: Pupa, ventral and dorsal views. 

 Enlarged. 





