Kinsey: Studies of Cynipidx 



91 



material of eriophortis at Stanford University, and independ- 

 ently concluded that the two are distinct. I have insects from 

 Pasadena and the San Jacinto Mountains, but only galls from 

 Upland, which is my locality for the same mountain range 

 from which the Baker material came. All of my material is 

 from Quercus chrysolepis. Kieffer records Q. Wislizenii as 

 the host. I have never seen such a gall on Wislizenii ; the only 

 material which I have seen labelled eriophorus bore leaves 

 unmistakably those of chrysolepis; and I doubt very much 

 whether Wislizenii is ever the host for this variety. 



Heteroecus dasydactyli variety pygmaeus, new variety 



FEMALE. — Differs from the female of other varieties of the species 

 as follows : Parapsidal grooves extending two-thirds or more of the way 

 to the pronotum, finely, not densely rugose at bottom; median groove 

 distinct for a short distance; basal foveas of the scutellum darker than 

 in other varieties, occasionally black, almost entirely smooth at bottom; 

 first abscissa of the radius rather sharply angulate, without a projection; 

 length 1.7-2,5 mm., averaging distinctly smaller than in other varieties 

 of the species, 



GALL. — Very similar to that of eriophorus. Each gall short, ovoid, 

 or more usually spindle-shaped, with the tapering point short and 

 strongly curved; more or less smooth. Singly or up to ten in a com- 

 pact cluster on the twigs, 



RANGE, — California: San Bernardino Mountains; Pasadena (?). 

 Probably confined to the neighborhood of the San Bernardino Mountains. 



TYPES.— 38 females, 20 clusters of galls. Holotype female, para- 

 type females, and galls in The American Museum of Natural History; 

 paratype females and galls at the Museum of Comparative Zoology, the 

 Philadelphia Academy, Stanford University, the U.S, National Museum, 

 and with the author. Labelled San Bernardino, California; January 31, 

 1920; Kinsey collector. 



The gall of this variety closely resembles that of variety 

 eriophorus, but the two can be separated very definitely. Dr. 

 McCracken has compared one of my types with Baker mate- 

 rial of eiiophorus, and she points out distinct differences as 

 noted under eriophorus. The San Bernardino Mountains con- 

 stitute a ''mountain island" area with a very distinct geologic 

 history and separated quite definitely from the neighboring 

 San Gabriels, in which latter range Baker collected Kieffer's 

 eriophorus. Six insects from Pasadena and their galls match 

 the San Bernardino material closely, tho most of the Pasa- 

 dena material belongs to eriophorus. 



