Indiana University Studies 



angle greater than 60^ ; segments two to four with the ventral edges- 

 well rounded. LEGS: Rufous brown or rufo-piceous, darker on the 

 tarsi; claws prominently toothed. WINGS: Clear, hairy, ciliate, veins 

 heavy; areolet large or very large; cubitus fading out just at or short 

 of the basalis; radial area open, the subcosta and radius not stopping 

 far short of the margin; second abscissa of the radius well curved; the 

 first abscissa slightly infuscated at the subcosta, strongly angulate but 

 with hardly a projection. LENGTH: 3.2-4.0 mm. 



GALL. — Rounded bullet gall with a nipple tip. Monothalamous. 

 Fairly globular, averaging 12.-15. mm. in diameter, some specimens 

 larger or smaller, bearing at the summit a short, blunt point; colored 

 light brick red or yellowish brov/n, weathering dark; the surface is very 

 rough, but finely so. Internally densely but not compactly woody, likely 

 solid when young, becoming hollow when mature, but with the walls 

 still thick; containing a thin-walled, hard-shelled, entirely loose larval 

 cell averaging 3. mm. in diameter by 4.2 mm. long. Galls attached by a 

 tongue in the concave base; laterally on twigs of white oaks. 



RANGE. — Oregon, California. Probably wherever oaks occur on 

 the Pacific Coast. 



Disholcaspis Simula ta variety simulata, new variety 



FEMALE. — Is distinguished from other varieties of the species as 

 follows: Head bright rufous brown, darker only on the tips of the 

 mandibles; antennae bright rufous brown, dark brown apically; thorax 

 entirely bright rufous brown, sometimes darker on the thoracic grooves 

 and lines; lateral lines only moderately broader; foveas of the scutellum 

 of moderate size, almost but not quite smooth; abdomen bright rufous, 

 rather rufo-piceous dorsally, ventrally, and posteriorly; legs bright 

 rufous brown, darker on the tarsi especially toward the tips; wing veins 

 heavy, deep and rich brown. 



GALL. — Mostly colored light brick red to a darker purplish red, 

 becoming lighter and browner on aging, or weathering dark; on twigs of 

 Quercus dwmosa. 



RANGE. — California: Fallbrook, Sorrento, San Jacinto Mountains, 

 Upland, Pasadena, Santa Barbara, Paso Robles. Probably occurs thru- 

 out the southern Sierras and their extensions, from El Portal south. 



TYPES. — 4 females and 29 galls. Holotype female, paratype fe- 

 male, and galls in The American Museum of Natural History; paratype 

 females and galls with the author; paratype galls at Stanford Univer- 

 sity, the Museum of Comparative Zoology, the Philadelphia Academy, 

 and the U.S. National Museum. Labelled Upland, California; February 

 3, 1920; Kinsey collector. 



Galls collected in February and March, 1920, contained live 

 adults in November and December 1920 and in March 1921 ; 

 several adults had emerged before March 1921. It is not un- 

 likely that it is a year and a half or more after hatching before 

 the adult emerges from the gall. Externally some specimens, 



