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Indiana University Studies 



of the radius angulate, sometimes with a long- projection into the radial 

 cell; length 2.0-2.5 mm. 



GALL. — Resembles the galls of other varieties; purplish brown, 

 bearing short spines or filaments, but these are scattered, the gall is 

 not mossy as in calif ornica, and upon aging the gall is often left almost 

 smooth. 



RANGE.— California: Ukiah. Probably confined to the region of 

 Mendocino and northern Sonoma counties. 



TYPES.— 100 females, 64 males, 54 galls. Holotype female, para- 

 type adults, and galls at The American Museum of Natural History; 

 paratype adults and galls at Stanford University, the U.S. National 

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

 and with the author. Labelled Ukiah, California; March 17, 1920; Kin- 

 sey collector. 



Of 289 adults bred only 64, or 22 per cent, are males, 

 probably due to males having: emerged mostly before March 

 17, the date of our collecting. 



This variety is not at all closely related to calif ornica, tho 

 the ranges of these two are proximate, but is very closely re- 

 lated to sierranensis and descansonis of more southern Cali- 

 fornia. Some further discussion of this peculiar distribution 

 is given with sierranensis. 



Diplolepis tuber culatrix variety sierranensis, new variety 



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

 as follows: General color bright rufous, with little black; head rufous 

 with a large black patch between the mouth and the compound eyes, 

 .sometimes extending to the bases of the antennae, leaving an intervening 

 rufous strip; first three segments of the antennae rufous, remaining seg- 

 ments black; thorax wholly rufous; median groove extremely short or 

 absent, never discontinuously indicated anteriorly as in rubridcrma; 

 anterior parallel lines not prominent; abdomen rufous, shading darker 

 terminally; areolet of moderate size, or usually small to very small; first 

 abscissa of the radius angulate, rather heavier than in riihriderma; 

 radial cell more or less distinctly open; cubitus continuous; length 3.5- 

 4.0 mm. 



MALE. — Very similar to the males of the other varieties; median 

 groove absent or barely evident at the posterior border of the mesonotum ; 

 areolet very small; radial cell open but with a dark marginal shading; 

 first abscissa of the radius angulate; length 2.2-3.2 mm. 



GALL. — Almost exactly like that of rubriderma. 



RANGE. — California: San Jacinto Mountains. Occurs probably 

 thruout the southern Sierran zone of California, from El Portal to the 

 Sierra Madre and the San Jacinto Mountains, except in the San Ber- 

 nardino Mountains. 



TYPES. — 45 females, 48 males, 50 galls. Holotype female, paratype 

 adults, and galls at The American Museum of Natural History; para- 



