148 



Indiana University Studies 



TYPES.— In the C. P. Gillette collection (?), the U.S. National 

 MuseLim (?), and at The American Museum of Natural History. 



Gillette bred adults in late March. We have not yet seen 

 type material of this variety, nor material from the type local- 

 ity. Our reasons for considering this distinct from similis 

 are detailed under that variety. 



Diplolepis tuberculatrix variety multispinosa (Gillette) 



Rhodites spinosissima Gillette, 1889, Iowa Exp. Sta. Bull., VII, p. 244, 



fig. 28 (name pre-occupied) . 

 Rhodites multisjmiosa Gillette, 1890, Ent. Amer., VI, p. 25, fig. 2; 1892, 



Proc. Iowa Acad. Sci., I, p. 110, pi. II. Thompson, 1915, Amer. Ins. 



Galls, pp. 22, 45. 



Rhodites multisjnnosns Dalla Torre, 1893, Cat. Hymen., p. 127. Beuten- 

 muller, 1907 (except Ontario and Washington records). Bull. Amer. 

 Mus. Nat. Hist., XXIII, p. 642, pi. XLV, figs. 11, 12, pi. XLVI, fig. 1. 

 Washburn, 1918, 17th Pvpt. State Ent. Minn., p. 180. Felt, 1918, 

 N.Y. Mus. Bull., 200, p. 146, figs. 150 (1), 151 (11, 12). Kinsey, 

 1920, Bull. Amer. Mus. Nat. Hist., XLII, p. 391. 



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

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

 Tierreich, XXIV, pp. 722, 839. 



{Rhodites muJtispinosus of Jarvis, Cosens, and Stebbins, is Diplolejns 

 dichlocera (Harris).) 



FEMALE. — Apparently (from the description) differs from other 

 varieties as follows: General color rufous, with some black below the 

 eyes and about the ocelli ; median groove extending two thirds to the 

 pronotum; abdomen dark rufous, black on the ventral valve; areolet 

 large; radial cell open; length 4.3 mm. 



MALE. — Apparently very similar to the male of other varieties; 

 length 2.5 mm. 



GALL. — Similar to the gall of other varieties, more or less densely 

 covered with spines, more so than in other varieties, these breaking off 

 with age and wear. 



RANGE. — Illinois: Ft. Sheridan, Evanston (Weld). Wisconsin: 

 Milwaukee (Brues in Beutenmuller) . Minnesota: Minneapolis (Potter 

 in Mus. Comp. Zool.) ; Cass Lake (Washburn). Records except from 

 adjacent parts of the north Middle West apply to other varieties. 



TYPES. — 1 female at the Philadelphia Academy; the types at the 

 Iowa State College cannot be located. Originally collected in Minnesota. 



Insects have been bred in late June (Weld) and early July. 



The gall of this variety is distinctive, altho individual 

 galls may not always be characteristic. We have very little 

 of this material in our collection. 



Beutenmuller suggested that "niidtispinosus may prove to 



