Kinsey: Gall Wasp Genus Cynips 
373 
riety 'erinacei, and incomplete observations on wheeleri sug- 
gest the same sort of life history for that variety. We may 
expect little modification of the data for the other varieties 
of the species. 
Pezomachoides is known from eight varieties. All of the 
more eastern varieties are strictly confined to the 
white oak, Q. alba , except variety echinoides which occurs on 
Q. bicolor in Florida. The Colorado variety cincturata occurs 
on Q. Gambelii. Each of the Q. alba varieties is geographi- 
cally delimited: the variety wheeleri is confined to the sub- 
Canadian area of the northeastern United States and the 
eastern mountain areas, variety pezomachoides occurs on the 
FIG. 63. SUMMARY MAP, VARIETIES OF C. PEZOMACHOIDES 
Showing geographic isolation of related insects. Areas of transition and hybridiza- 
tion not shown. See detailed maps of each variety. 
Atlantic Coastal Plain, variety erinacei occurs over most of 
the northeastern quarter of the country, variety derivatus oc- 
curs in Georgia and Alabama and in parts of the area adjacent 
to the Mississippi and Ohio Valleys, variety ozark centers in 
the Missouri Ozarks but extends over most of Kentucky and 
southern Indiana and parts of Illinois, and variety advena is 
typical of the Cumberland and other southeastern mountain 
areas. 
Cynips gemmula is very close to pezomachoides, and was 
