274 THE MONTHLY BULLETIN. 



Aphjjcits immaculatus Howard (Family Encyrtidse). 



(Fig. 272.) 



General Appearance. — A small dark parasite, slightly over .05 mm. 

 in length. The general color is dark yellowish-brown with light yellow 

 head, dusky legs and antennae and hyaline wings. 



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Fig. 272. — Aphycus imviaculatus How. (After 

 Howard. Courtesy Cal. Exp. Sta.) 



Distribution. — So far as known this species occurs only in the 

 southern part of the State. 



Hosts. — Parasitic upon red scale (Chrysomplialus aurantii) . 



THE KATYDID EGG PARASITE. 



Eupelmus mirabiUs (Walsh) (Encyrtidae) . 



General Appearance. — The adult parasites are a little more than 

 one eighth of an inch long and of a metallic green color. The wings 

 are dusky. The insect has a peculiar way of elevating the abdomen 

 over the thorax. 



Life History. — The eggs are deposited within the eggs of the katydid 

 by the female. The entire contents of the eggs are devoured by the 

 larvcP and the transformations to adults occur within the eggs, the 

 adults issuing through circular holes in the sides. (Fig. 21.) 



Distribution. — Common throughout the entire State. 



Hosts. — This parasite works upon the eggs of various katydids. 



PARASITE OF WHITE FLIES. 



Gyrolasia flavimedia Howard (Family Eulophidae). 



(Fig. 273.) 



General Appearance. — An extremely minute parasite about one 

 twenty-fifth of an inch long. The general color is rich metallic black, 

 the second and last abdominal segments being bright orange with bases 



