Kinsey: Gall Wasp Genus Cynips 377 
the parenchyma zone is also absent, and that the hard, crystal- 
bearing tissue which constitutes most of the gall is a collen- 
chyma layer not recognized by the American workers on gall 
histology. The epidermal layer is well described by Cook and 
Cosens. 
Cynips pezomachoides variety cincturata, new variety 
agamic form 
Figures 63, 372, 415 
Cynips erinaceus err. det. Osten Sacken, 1873, Hayden Rpt. U.S. Geol. 
& Geog. Surv. 7: 567, No. 2. 
Acraspis erinacei err. det. Ashmead, 1890, Colo. Biol. Assoc. Bull. 1: 38. 
Acraspis pezomachoides err. det. Ashmead, 1890, Colo. Biol. Assoc. Bull. 
1:38. 
FEMALE. — The head bright red rufous with a black area about 
the ocelli and down the middle of the face to the mouth; the antennae 
with the first two segments bright red rufous and the third to fifth 
segments brownish rufous; the mesonotum largely red rufous, the pro- 
notum laterally red rufous with black edges ; the mesopleuron dark 
rufous and black, the legs red rufous, rufo-piceous on the femora and 
the coxae basally; the abdomen rufo-piceous to piceous, bright rufous 
to rufo-piceous on the second segment basally; the mesonotum scatter- 
ingly hairy and punctate, coriaceous posteriorly, rougher anteriorly; 
wings averaging about 0.16 of the body in length; rather large insects 
2.8 to 4.0 mm. in length. Figures 372, 415. 
GALL. — Not available. Probably on Quercus Gambelii or its vari- 
eties. 
RANGE. — Colorado (types, C. F. Baker coll.). 
Probably restricted to an area in the southern Rocky Mountains. 
Figure 63. 
TYPES. — 20 adults, no galls. Holotype and paratype females in the 
U.S. National Museum; paratype females in the Kinsey collection. 
Labelled Colorado (without definite locality) ; number 1197 ; C. F. Baker 
collector. 
This insect is easily distinguished from erinacei , with which 
the Colorado material has previously been confused. Both 
Osten Sacken and Ashmead recorded the occurrence of our 
present species in Colorado, but I have not been able to locate 
their specimens. The types which I am describing belong to 
a series that has been in the National Museum collection for 
some time. The galls of the type series were not located, but 
inasmuch as Ashmead recorded both “ pezomachoides ” and 
