548 SIDNEY I. KORNHAUSER 
Aphelopus theliae belongs to the Dryinidae, characteristically 
parasitic on homopterans, but never before known to be poly- 
embryonic. This species was named and described by Mr. A. 
B. Gahan (’18) from material reared and sent by the author. 
Fig. 1 Megagnathie larvae in abdomen of Thelia. Terga, digestive tube, 
and parasites dorsal to digestive tube have been removed. X 9. 
Fig. 2 Eruciform larvae as they emerge from their host. X 8.7. 
Fig. 3. Male Aphelopus theliae. Taken from pupa case before complete 
transformation accomplished. X 10.1. 
Fig. 4 Female Aphelopus theliae. Taken from pupa case before its ova had 
reached maturity. X 10.1. 
Imagoes are shown in figures 3 and 4. They are jet black. 
The female is 2.2 mm. in length, the male slightly shorter. 
The specimen shown in figure 4 was taken from its pupa case 
before complete maturity was reached. This accounts for the 
