Kinsey: Gall Wasp Genus Cynips 
277 
Attached singly or in groups (not clusters) ; on the upper or under 
surfaces of the leaves of the Q. stellata and Q. alba groups of white 
oaks of the eastern United States and the evergreen white oaks of the 
Southwest and Mexico. 
RANGE. — Known from New York to Florida, Arizona, and cen- 
tral Mexico; the center of known distribution in our Southwest. Fig- 
ure 43. 
SUBGENOTYPE . — Cynips dugesi simulatrix, new variety. Present 
designation. 
FIG. 43. KNOWN RANGE, SUBGENUS ATRUSCA 
Shading and figures indicate number of species known from each area. 
Three species (cava, dugesi, and bella) restricted to our 
Southwest, and one species (centricola) ranging in the eastern 
half of the United States as far north as Missouri and New 
York, constitute the known representatives of this subgenus. 
There are twelve described varieties. The known occurrence of 
one variety of dugesi in more central Mexico, and the regular 
inclusion of galls that may represent this subgenus among 
the few collections that have come out of Mexico, suggests 
that the mountains in that country may hold many species 
of Atrusca still to be discovered. The attractively spotted 
wings of all the species of this group were, I must admit, one 
of the things that first attracted my attention to the present 
genus of gall wasps. 
Atrusca is closest to the subgenus Acraspis, from which it 
