Kinsey, Ayres: Varieties of a Gall Wasp 147 



rufous brown, the remaining segments brownish black; thorax rufous 

 brown, finely punctate, sparsely covered with hairs; median groove very 

 distinct, extending to the pronotum; mesopleurag black with the smooth 

 central area rufous; abdomen rufous; areolet moderately small; cubitus 

 apparently continuous; first abscissa of the radius arcuate-angulate; 

 radial cell open, shaded with brown; length 3.7 mm. 



MALE. — From the original description, would appear to be similar 

 to the males of the other varieties except in having the basal segments 

 of the antennas rufous brown. 



GALL. — Very similar to the galls of most other varieties; relatively 

 smooth and spineless, small. 



RANGE.— Wyoming (=:Montana?) : Point of Rocks (Bruner coll.). 



TYPES.— Adults (and galls?) at the U.S. National Museum, No. 

 3098; cotype galls at The American Museum of Natural History. From 

 Point of Rocks, Wyoming; Bruner collector. 



Ashmead's material was reared July 27. 



These redeseriptions are made from type females loaned 

 by the U.S. National Museum, and from type galls in The 

 American Museum of Natural History. The variety is closely 

 related to variety tnberculatrix, tho the two are distinct. 

 Beutenmuller considered similis a synonym of arefacta, which 

 it does closely resemble. But the type localities of the two are 

 about 450 miles apart, in the very discontinuous country of 

 the northern Rocky Mountains, where the quantity of barren 

 areas serves to isolate many distinct varieties. Until we can 

 see an abundance of material from both regions it would be 

 very unwise to bury and confuse data by maintaining the 

 synonomy. These varieties show closest relations to the vari- 

 eties west of the Continental Divide and in Utah. 



Diplolepis tuberculatrix variety arefacta (Gillette) 



Rhodites are f. actus Gillette, 1894, Can. Ent., XXVI, p. 157. Cockerel], 

 1900, Ent. Student, I, p. 10. Beutenmuller, 1907 (in part). Bull. 

 Amer. Mus. Nat. Hist., XXIII, p. 640, pi. XLV, fig. 1. Thompson, 

 1915, Amer. Ins. Galls, pp. 22, 45. Felt, 1918, N.Y. Mus. Bull., 200, 

 p. 146, fig. 151 (1). Kinsey, Bull. Amer. Mus. Nat. Hist., XLII, 

 p. 391. 



Lytorhodites arefactus Kieffer, 1902, Bull. Soc. Metz, X, p. 97. Dalla 

 Torre and Kieffer, 1902, Gen. Ins. Hymen. Cynip., p. 79; 1910, Das 

 ' Tierreich, XXIV, pp. 723, 840. Fullaway, 1911, Ann. Ent. Soc. 

 Amer., IV, p. 378. 



FEMALE and MALE. — Apparently similar to variety shnilis. 

 GALL. — Described as small and spineless. 



EANGE.— Colorado: Fort Collins (Gillette). Records from other 

 regions of this state and from other states apply to other varieties. 



