THE MONTHLY BULLETIN. 



275 



of antennaj, the legs and the under side of the abdomen yellow. The 

 fore wings are clear with a distinct dark spot near the middle of the 

 front margin. The veins are black. 



Distribution. — Keported only from the southern part of the State 

 in Los Angeles County. 



Fig. 273. — Gyrolasia flavimedia Howard. (U. S. 

 Dept. AgTcl.) 



Hosts. — This insect is parasitic upon the species of white flies 

 {Aleyrodes sps.) infesting iris and fuchsia. 



THE PURPLE SCALE PARASITE. 



Aspidiotiphagus citrinus Craw (Family Eulophidse). 

 (Figs. 274, 275.) 



General Appearance. — An exceedingly small insect, almost micro- 

 scopic in size, light and brownish yellow in color with wings, antennae 

 and legs pale. 



Fig. 274. — The purple scale parasite, Aspidio- 

 tiphagus citrinus Craw. (After Howard.) 



Distribution. — Generally distributed throughout the purple scale- 

 infested citrus districts in the southern part of the State, but often 

 limited or totally absent in certain localities. Most abundant in San 

 Diego County. 



Hosts. — Works uncertainly but often very effectually on purple 



