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Indiana University Studies 



at bottom, with small, smoother areas laterally; areolet of moderate size 

 to very small or closed; radial cell entirely clear, a limited, brown in- 

 fuscation about the terminal part of the subcosta extending into the 

 subcostal cell only. 



MALE. — Differs from the male of austrior in having the areolet 

 small or very small, averaging smaller. 



GALL. — Quite similar to that of austrior. 



EANGE.— Washington: Seattle (in Amer. Mus. Nat. Hist.) ; Olym- 

 pia (Gillette); White Salmon. Oregon: Corvallis (B. G. Thompson in 

 Mus. Comp. Zool.). Idaho: Cedar Mts. (Beutenmuller det.). 



TYPES.— C. P. Gillette collection?. 



I have not seen the Idaho material. The B. G. Thompson 

 material in the Museum of Comparative Zoology was bred 

 January 24 and 27. Gillette bred his adults in March. Ma- 

 terial which I collected at White Salmon, Washington, April 

 11, had most of the adults already emerged, tho a few 

 emerged after that date. I am inclined to believe late March 

 is the average time of emergence. Of 64 adult's of which I 

 have record, 21 are miales. I have collected galls which were 

 widely broken into, possibly by birds, more probably by mice 

 in search of the ready mess of larvse or pupse. 



Diastrophus kincaidii variety austrior new variety 

 Diastrojjhu.s kincaidi Fullaway, 1911, Ann. Ent. Soc. Amer., IV, p. 375. 



FEMALE. — Differs from the other variety as follows: Antennae 

 distinctly slender, not as short as in the other variety; anterior parallel 

 and lateral lines only indicated but perhaps more distinctly than in 

 variety kincaidii; scutellum with two very distinct, good-sized foveae 

 which are smooth at bottom; areolet of moderate size to large, rarely 

 small; radial cell mostly clear, a light brown infuscation about the 

 terminal part of the subcosta more often extending equally into both 

 radial and subcostal cells. 



MALE. — Differs from the male of variety kincaidii in having the 

 areolet of moderate size or small, averaging larger. 



GALL. — Quite similar to that of variety kincaidii. 



RANGE. — California: Point Arena (Fullaw^ay) ; Alameda Co. (thru 

 Riley) ; Mt. Tamalpais. 



TYPES.— 32 females, 13 males, 26 galls. Holotype female, para- 

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

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

 Museum, the Museum of Comparative Zoology, and with the author. 

 Labelled Mount Tamalpais, California; March 14, 1920; Kinsey col- 

 lector. 



Some of the insects had emerged before March 14, but all 

 of the types emerged after that date. 



