396 NEW YORK STATE MUSEUM 
APHIDOLETES Kieff. 
Aphidoletes and Bremia are peculiar in that the setae and 
circumfili of the male antennae are greatly produced on the 
dorsal face. This gentts is easily separated from Bremia bya 
the three well developed circumfili [fig. 45]; and by the pulvilli 
being long, usually over one half the length of the claw. The 
; / 
Fig. 45. Aphidoletes hamamelidis Felt, 5th antennal segment of male, much 
enlarged. (Original) 
ventral plate in the male is expanded distally and the anterior 
and midclaws are strongly unidentate; the posterior claws are 
simple. The wing is shown on plate 37, figure 4. 
All of the species of Aphidoletes presumably live at the ex- 
pense of aphids or plant lice. 
Key to species 
a Legs very slender with a length 2% or 3 times that of the body; tibiae 
distinctly though slightly swollen apically 
