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Indiana University Studies 



the scutellum; wing veins somewhat finer tlian in variety 'pacificiLs ; 

 areolet of moderate size or larger, distinctly elongate on the cubitus; 

 length 2.8-3.2 mm. 



GALL. — Very similar to the galls of other varieties of the species, 

 differing in averaging smaller, tho individual galls will equal those of 

 the other varieties in size; more slender, with a longer, more slender 

 point. 



RANGE.— California : Ukiah. Probably confined to a part of Men- 

 docino and northern Sonoma Counties. 



TYPES. — 6 females, 23 galls. Holotype female, paratype galls at 

 The American Museum of Natural History; paratype adults and galls 

 at Stanford University, the U.S. National Museum, and with the author; 

 paratype galls at the Museum of Comparative Zoology, and the Phila- 

 delphia Academy. Labelled Ukiah, California; March 17, 1920; Kinsey 

 collector. 



Galls were found in several stages of development at Ukiah 

 on March 17 ; the insects emerged at some later date. 



Both the insects and galls of this variety are more distinct 

 than those of other varieties of the species. 



Heteroecus sanctse-clarae (Fullaway) 



FEMALE. — Differs from the females of other species of the genus 

 as follows : Color of head and thorax mostly rich, dark, brownish rufous, 

 blackish in part; parapsidal grooves distinct, moderately wide at the 

 scutellum, rugose at bottom, extending only half the mesonotal length; 

 median groove indicated by a rather wide depression for a short dis- 

 tance from the scutellum; anterior parallel lines fine, distinct; scutellum 

 rather deeply rugose, the basal foveae smooth or rugose at bottom; meso- 

 pleurse with a small dorsal area rugoso-punctate ; abdomen darker or 

 lighter rufous, second segment covering not more than three quarters 

 the whole area; wing veins rich brown or yellowish brown; margins 

 short ciliate; areolet of moderate size or larger; second abscissa of the 

 radius almost straight; first abscissa arcuate-angulate; length 2.5-3.5 mm. 



GALL. — A smooth, two-parted gall. The lower portion of the gall 

 is rather cylindrical, narrower apically where it is inserted into the sec- 

 ond part, concave basally where it is attached to the twig; the upper 

 portion is low, cylindrical, as wide or more often nearer twice as wide 

 as the lowei' portion, as high or little higher than the low^er portion, 

 drawn more or less abruptly into a long, rather slender, blunt point; 

 gall measuring up to 15. mm. in greatest diameter, and 20. mm. in total 

 length; externally smooth or slightly roughened, covered with a bluish 

 white bloom when fresh, becoming light buff to golden yellow, blacken- 

 ing on weathering. Internally compact, not woody, solid except for a 

 small, irregular cavity in the upper portion ; the larval cell about cen- 

 tral, divided between the two parts of the gall, or nearer the base. 

 Sessil on twigs of Quercus chrysolepis. 



RANGE. — California: San Jacinto Mountains to Dunsmuir. 



