PI,ATE 5 
Platygaster hiemalis 
A. —Photomicrograph of twin embryos which have developed side by side between 
fat bodies of the host. The embryos are typically U-shaped and slightly advanced in 
development of the one shown at F on Plate 4. X 140. 
B. —Photomicrograph of a sectioa through three embryos in one end of a host larva. 
Note the thickened trophamnion of the embryo on the left. X 116. 
