Kinsey: Studies of Cynipidx 



65 



Patch, 1907, Me. AgT. Exp. Sta. Bull., 148, p. 279; Stebbins, 1910, 

 Springfield Mus. Bull., II, p. 38. 



The Ashmead, Gillette, and Cockerell records for Colorado 

 are certainly for an undescribed variety. Stebbins' record 

 may apply to variety johnsoni. Considering the geographic 

 source of these other references, it is possible that none of 

 them apply to variety radicum, which is probably confined to 

 the Atlantic Coastal Plain. Britton (1902, Conn. Exp. Sta. 

 Rpt., I, p. 237), records this species from Rubus. This is a 

 mistake, and the reference applies probably to Diastrophus 

 nebidosMs (Osten Sacken). According to Beutenmuller 

 (1909), Bull. Amer. Mus. Nat. Hist., XXVI, p. 137), the fol- 

 lowing references to this species apply to Diastrophus turgidus 

 (Bassett) : 



Rhodites radicum Riley, 1870, Amer. Ent., II, p. 181, fig. 110. Saunders, 

 1874, Rpt. Ent. Soc. Ont, for 1873, p. 7, fig. 1; 1883 and 1889, Ins. 

 Inj. Fruits, p. 304, fig. 314. Gillette, 1888, 27th Rpt. Agr. Mich., 

 p. 467. 



In the same paper (1909) Beutenmuller applies the follow- 

 ing references to Diastrophus radicum Bassett : 



Rhodites radicum Gillette, 1888, 27th Rpt. Agr. Mich., p. 467. Gibson, 

 1906, Rpt. Ent. Soc. Ont., for 1905, p. 122. 



The next references apply to some, probably an unde- 

 scribed, variety of this species : 



Trihalia batatorum Walsh, 1864, Proc. Ent. Soc. Phila., II, p. 471. Ash- 

 mead, 1885, Trans. Amer. Ent. Soc, XII, pp. 294, 304; 1887, Trans. 

 Amer. Ent. Soc, XIV, p. 134; 1903, Psyche, X, p. 210; 1903, Proc 

 Ent. Soc Wash., V, p. 222. Kieffer, 1902, Bull. Soc Metz, (2), X, 

 p. 96. Dalla Torre and Kieffer, 1902, Gen. Ins. Hymen. Cynip., 

 p. 77; 1910, Das Tierreich, XXIV, pp. 697, 842. Thompson, 1915, 

 Amer. Ins. Galls, pp. 21, 44. 



Walsh published this name with a poor description of an 

 immature insect, without a definite locality altho it was 

 probably Illinois, and with the statement that the gall was 

 "As I learned from a reliable source, attached, apparently by 

 a woody peduncle, to a common potato, many other such galls 

 having been found on other potatoes." This astounding host 

 record was fortunately questioned by Beutenmuller (1907, 

 Bull. Amer. Mus. Nat. Hist., XXIII, p. 649), who stated that 

 ''Dr. William H. Ashmead informed me some time ago that 

 he had investigated this matter and was in possession of con- 



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