Kinsey: Stv.dies of Cij/'.ipidx 



11 



City, San Francisco; Mt. Diablo (F. B. Leach coll.) ; Santa Rosa, Napa, 

 Gait, Oroville, Redding. Possibly a distinct variety occurs from San 

 Francisco north. 



TYPES. — Adults and galls at the Philadelphia Academy, The Ameri- 

 can Museum of Xatural History, the Museum of Comparative Zoolog\', 

 and in the Beutenmuller collection (?). Redwood City, California; 1878 

 and 1880; "Q. Hiridsii?" {=Q. lobata) : AA'm. Sutton collector. 



The adult of this variety is morphologically very similar 

 to spongioh's, except in color, but it has a very distinct range 

 and (consequently?) distinct hosts. The young galls were 

 just beginning development at Palo Alto on [March 13, and 

 further north at Gait on ]\Iarch 29 : adults emerge in October. 

 Very probably an alternate generation occurs w-ith a life his- 

 tory of at least five months. 



The two oaks on which this variety occurs are distinct 

 but not unrelated species, are confined to the same geographic 

 area, and have about the same distribution, tho one occurs 

 in somewhat different soil and averages a different elevation 

 above sea-level. Under such circumstances it appears pos- 

 sible for a cynipid to inhabit both oaks without consecjuent 

 variation, for as far as the material I have seen would show 

 there are not apparent difi^erences between insects and galls 

 from Que /'c us lobata and Q. DougJasiu 



Andricus calif ornicus variety spongiolus (Gillette) 



Andricv.s spongiola Gillette. 1894. Can. Enr.. XXVI, p. 235. Dalla Torre 

 and Kieffer, 1902, Gen. Ins. H>inen. Cynip., p. 65; 1910, Das Tier- 

 reich, XXIV, pp. 529, 803, 830. Thompson, 1915, Cat. Amer. Ins. 

 Galls, pp. 8, 84. Felt, 1918, X.Y. Mus. Bull., 200, p. 62. 



Andricus quercus-coJ.if ornicus Swezey, 1916, Proc. Haw. Ent. Soc, III. 

 p. 222. 



FEMALE. — Shows the following- characters in addition to those 

 common to all varieties of the species : Color almost entirely dark 

 rufous brown, blackish in the foveal depression and on the metathorax; 

 antenna very dark brown or blackish, ''15-jointed" (according to Gil- 

 lette) ; parapsidal grooves rather fine, even at the scutellum, not extend- 

 ing much more than half the length of the mesonotum, median groove 

 very short or lacking; scutellum with the anterior depression forming 

 more or less smooth, indistinctly bounded foveee; length "5 mm." (accord- 

 ing to Gillette ) . 



GALL. — Differs from the galls of other varieties of the species as 

 follows: Color light straw yellow to a unicjue, salmon yellow, weather- 

 ing dark brown to black: occasionally bearing a few. short, blunt, tuber- 

 culate projections: internally usually softer than in the other varieties, 



