* I V xL 



HEMIPTERA. 



143 



Lecdnium olea also occurs in conservatories, but it is very common in 

 the open air in California. Here it is a serious pest of the orange, 



FIG. ivj.Pulvinaria. innumerabilis. Female on grape, natural size. (From the Author's Report 



olive, and other trees. It is very convex and marked with promi- 

 nent ridges (Plate V. i). Especially prominent are two transverse 

 ridges and a longitudinal one which frequently form a raised surface 

 of the form of a capital H. 



FIG. 128. Ceroplastes floridensis, adult and young 

 females on Ilex, natural size ; a, young female, en- 

 larged : 3, adult female, enlarged. (From thej Au- 

 thor's Report for 1880.) 



FIG. 129. Ceroplastes cirripediformis. 

 Adult females, natural size ; a, fe- 

 male enlarged. (From the Author's 

 Report for 1880.) 



^^Pulvindria. This genus is distinguished from Lecanium only by 



