376 



INJURIOUS AND BENEFICIAL INSECTS OP CALIFORNIA. 



consequence in controlling this pest. It also works on yellow scale, 

 Chrysompkalus citrinus (Coq.), red scale, Chrysomphalus aurantii 

 (Mask.), and pernicious scale, Aspidiotus perniciosus Comst. 



THE LECANIUM PARASITE 



Coccophagus leoanii (Fitch) (Family Eulophidse) 

 (Fig. 375) 



Description. — The adults are scarcely i inch long, dark bluish-black 

 in color with a very noticeable and characteristic yellow scutellum. 

 The antenna; and the legs, excepting the dark femora, are amber. 



Distribution. — It is exceedingly common throughout the entire 

 southern and central parts of the State. 



L^> 



Fig. 375. 



-Coccophagus lecanii (Fitch). Adult greatly enlarged. 

 (After Howard, U. S. Dept. Agric.) 



Hosts. — This is a very effective parasite on the younger stages of 

 the soft brown scale, Coccus hespcridum Linn., the European fruit 

 Lecanium, Lecanium corni Bouche, and the frosted scale, Lecanium 

 pruinosum Coq. In fact, it may be reared from almost any of the 

 members of the above genera. 



