Kinsey: Studies of Cynipidx 



97 



This is not an acorn gall, as stated in the original descrip- 

 tion, but a bud gall. The insect shows extremely close rela- 

 tionships to other species of the genus. Indeed, the distinctive 

 characters of the species are few. These characters are not 

 as marked as for most varieties of species of the genus, and 

 but for the character of the gall, sanctse-clarx would never 

 have been described when it was. In regard to the gall, the 

 character of the external surface, the compact internal tissues, 

 and the fact that it is a monothalamous bud gall would indi- 

 cate even a physiology related to that of the other species. 

 It is in general form only that the galls are distinct. 



As usual, the varieties are distributed in distinct fauna 1 

 areas. 



Heteroecus sanctse-clarae variety sanctae-clarae (Fullaway) 



Callirhytis sanctse-clarse Fullaway, 1911, Ann. Ent. Soc. Amer., IV, p. 



363, fig. 5. Felt, 1918, N.Y. Mus. Bull., 200, p. 118. 

 ? Disholccispis sj). Trotter, 1910, Boll. Lab. Portici, V, p. 109, fig. 9. 



FEMALE. — Differs from the other varieties of the species as fol- 

 lows: Antennse almost wholly brownish rufous, hardly lighter basally; 

 thorax alnriost wholly rich, dark, brownish rufous, blackish on the an- 

 terior parallel and lateral lines; depression at base of scutellum almost 

 smooth at bottom for a wide area; most of mesopleurse heavily puncto- 

 aciculate, almost entirely brown rufous, only finely edged blackish, ab- 

 domen rufous, darker dorsally, yellow rufous ventro-posteriorly ; second 

 segment covering about two-thirds of the abdominal area; wing veins 

 rich brown, areolet moderately large, larger than in the other varieties; 

 first abscissa of the radius limitedly infuscated; length 3.0-3.5 mm. 



GALL. — Does not differ particularly from the galls of the other 

 varieties. 



RANGE. — California: Cupertino (Fullaway) ; Yosemite (Trotter); 

 South Fork of Kings Eiver, Tulare Co. (Weld) ; Boulder Creek, Duns- 

 muir, Placei-ville. Probably confined to the more northern parts of 

 California, where Q. chrysolejns occurs. 



TYPES.— 2 females, 1 gall, at Stanford University; collected at 

 Stevens Creek Canyon, above Cupertino, California, by R. W. Patterson. 



I have seen the types of this species, but the above descrip- 

 tion was made from material I collected at Boulder Creek. ] 

 have not seen the insects of the Yosemite and Kings River ma- 

 terial, so refer the galls to this variety rather than to the 

 other only because of the geographic distribution. Insects 

 had emerged from galls collected in March and April; dead 

 adults were obtained by cutting into the galls. 



7—21784 



