Kinsey: Studies of Cynipidse 



25 



he recorded Q. ilicifolia and Q. palustris as the hosts, and 

 when he solved the life history, identifying opeixitola as the 

 agamic generation, I cannot be certain until I can see material 

 certainly collected at Waterbury. 



Andricus operator variety operator 

 form operatola (Bassett) 



Cynips q. operatola Riley, 1873, Amer. Nat., VII, p. 519. 



Callirhyiis operatola Riley, 1895, Sci., I, p. 463. Thompson, 1915, Amer. 

 Ins. Galls, pp. 21, 30 (not the fig.). 



Ayidricus operatola Bassett, 1900, Trans. Amer. Ent. Soc, XXVI, p. 315 

 [Adult first described!]. Dalla Torre and Kieffer, 1902, Gen. Ins. 

 Hymen. Cynip., p. 64; 1910, Das Tierreich, XXIV, pp. 550, 823, 

 831. Beutenmuller, 1913 (in large part) , Brooklyn Ent. Soc. Bull., 

 VIII, p. 103, fig. 8. Viereck, 1916, Hymen. Conn., p. 418. Britton, 

 1920, Conn. Geol. and Nat. Hist. Surv. Bull., 31, p. 321. 



Andncus operator form operatola Felt, 1906, Ins. Aff. Pk. and Woodl. 

 Trees, II, p. 709. Kinsey, 1920 (except the figs.), Bull. Amer. Mus. 

 Nat. Hist., XLII, pp. 347, 380. 



Andricus operator Felt, 1918, N.Y. Mus. Bull., 200, p. 118 (not the fig.). 



FEMALE. — Differs from the female of the bisexual generation of 

 this variety as follows: Head and thorax rich brownish rufous, darker 

 in part; antennae thicker, uniformly rich brownish rufous; anterior 

 parallel lines more evident, in part because of a darker coloring; scutel- 

 lum not as long as wide ; f oveae moderately broad, not rounded, sparingly 

 sculptured at bottom; abdomen rich rufous to piceous dorsally and pos- 

 teriorly, smooth, the edg^es of the segments finely punctate, the second 

 segment rather hairy latero-basally, the abdomen much longer than 

 high, rather produced dorsally, the edges of the segments strongly 

 oblique; legs golden rufous, the tibiae, especially the hind tibi«, brown; 

 areolet small or closed, indistinct; length, 3.2-3.5 mm. 



GALL. — Similar to the seed-like acorn gall of the other agamic 

 forms. Probably on all of the black oaks on wiiich the bisexual genera- 

 tion occurs. 



RANGE. — As given for the bisexual form of this variety. Prob- 

 ably thruout a more northern part of the eastern United States except 

 in more northern New England and on the Atlantic Coastal Plain. 



In an earlier paper (1920), I have given an account of this 

 form; as explained under operator there may be a question 

 whether this is the agamic form of operator or of falsus. The 

 insect matures in the second or third spring, emerging in 

 early May in Connecticut, and oviposits in the young buds to 

 produce the bisexual generation. 



