RANGE.—Utah: Bountiful (types; B. and H. J. Pack in Kinsey coll.). Farmington, Santaquin, and Layton (B. and H. J. Pack in Kinsey coll.).
Probably restricted to an area in more northeastern Utah. Figure 59.
TYPES.—149 females and many galls. Holotype and paratype females and galls in the Kinsey collection. Paratype females and galls at the American Museum of Natural History, the U.S. National Museum, the Museum of Comparative Zoology, the Utah Agricultural College, the Stanford University museum, the California Academy of Science, and the Field Museum. Labelled Bountiful, Utah; galls September 10, 1927; females December 5 and 23, 1927; Q. utahensis; B. and H. J. Pack collectors.
This is an apparently common insect in the mountains of northeastern Utah. Its closest relatives are alaria, which occurs in southern Colorado and northern New Mexico east of the Continental Divide, and the variety villosa, which ranges from Kansas into New York State. Calvescens is immediately distinguished by the large, naked area on the abdomen, the more eastern insects having the sides of their abdomens entirely hairy. The name calvescens (becoming bald) emphasizes the striking appearance of the new variety. This Utah insect also has a distinctly longer wing and averages shorter in body length than either of the other varieties.
The Cynipidae of Utah, as far as I have studied them, are never the same as those of Colorado, and the present species serves to illustrate how distinct these faunas may be.
We are indebted to Dr. H. J. Pack and his daughter, Bessie Pack, for all the material we have of this insect. The galls collected early in September (1927) seemed fully mature. Out-of-doors at Bloomington, Indiana, I bred 66 adults by December 5, another 76 by December 13, and another 9 at some later date (all in 1927).
Cynips villosa variety villosa (Gillette) agamic form
Figures 59, 365, 409
