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Indiana University Studies 



males. But material of one variety gave over 50 per cent 

 males, suggesting that the sexes are probably equal if the col- 

 lections are adequate. The insects emerge in spring, from 

 February further south to April (or later?) further north. 

 It is unlikely that an alternation of generations occurs. 



Diplolepis fusiformans variety fusiformans (Ashmead) 



Rhodites fusiformans Ashmead, 1890, Bull. Colo. Biol. Assoc., I, pp. 14, 

 38. Cockerell, 1890, Ent., XXIII, p. 75 ; 1900, Ent. Student, I, p. 10. 

 Gillette, 1892, Ent. News, III, p. 246. Dalla Torre, 1893, Cat. 

 Hymen. Cynip., II, p. 127. Dalla Torre and Kielfer, 1902, Gen. 

 Ins. Hymen. Cynip., p. 78; 1910, Das Tierreich, XXIV, pp. 717, 

 840. Beutenmuller, 1907, Bull. Amer. Mus. Nat. Hist, XXIII, p. 

 643, pi. XLVI, figs. 10-12. Thompson, 1915, Amer. Ins. Galls, pp. 

 22, 45. Felt, 1918, N.Y. Mus. Bull., 200, p. 146, fig. 150 (10-12). 

 Kinsey, 1920, Bull. Amer. Mus. Nat. Hist., XLII, p. 393. 



FEMALE. — Shows the following characters in addition to those 

 common to all varieties of the species: Mouthparts yellow or brown 

 rufous, the mandibles tipped piceous; first two segments of the an- 

 tennae bright rufous brown; lateral lines fine, smooth, distinct; abdomen 

 bright yellow rufous, dark brownish rufous posteriorly and ventrally; 

 second segment covering fully two-thirds or more of the abdomen; 

 hypopygium relatively smaller than in minuta; legs almost entirely 

 bright yellow rufous, coxae somewhat darker basally, the hind tibiae and 

 tarsi brown; areolet moderately small; length 1.7-2.2 mm. 



MALE. — Differs from the males of the other varieties as follows: 

 Lateral lines somewhat smooth; second segment covering three-quarters 

 of the abdomen; legs dark brown on the coxae and femora and hind 

 tibiae; areolet moderately small; length 1.5-2.0 mm. 



GALL. — Differs from the galls of other varieties in having the 

 swelling rather abrupt, distinct, sometimes globose; up to 17. mm. in 

 length and 8. mm. in diameter; usually with only six or eight larval 

 cells. 



EANGE.— Colorado: V^est Cliff, Colorado Springs (Cockerell); 

 Manitou. Probably confined to an area in Colorado in the foothills on 

 the eastern side of the Continental Divide. 



TYPES. — Females, m.ales, and galls at the U.S. National Museum. 

 From West Cliff, Colorado; T. D. A. Cockerell collector. 



The redescriptions are made from material I collected at 

 Manitou on April 24, 1920 ; I have compared it with the 

 Ashmead types. 



Of 86 insects I bred from the galls collected at Manitou, 

 17, or only 20 per cent, are males. Probably the sexes are 

 more nearly equal in number, some of the males having 

 emerged before collection. 



This insect has also been recorded from Illinois and 



