and adults in each case exactly like those of the parent generation. This was conclusive proof that there is no alternation of generations with this species, and nothing known of its life history would suggest that an alternation ever occurs. By strictly isolating the females from the males at emergence and before oviposition, and by anatomical examination of the receptaculurm, Adler proved the parthenogenetic development of eggs.
{{center|Rhodites ignotus Osten Sacken
Plate XXVIII, Figures 5 to 7
Rhodites igntota Osten Sacken, 1863, Proc. Ent. Soc. Phila., II, pp. 44, 45, 49. Gillette, 1892, Ent. News, III, p. 246. Beutenmüller, 1892, Bull. Amer. Mus. Nat.Hist., IV, p. 246, P1. ix, fig. 2; 1904, Amer. Mus. Journ., IV, p. 94, fig. 7; 1904, idem, XX, p. 27; 1904, Amer. Mus. Nat. Hist. Guide Leaf. 16, p. 8, fig. Felt,1906, Ins. Aff. Pk. & Woodl. Trees, II, pp. 621, 647. Stebbins, 1910, Springfield (Mass.) Mus. Bull., II, p. 37, fig. 73. Thmopson, 1915, Cat. Amer. Ins. Galls, pp. 23, 45, P1. v, fig. 100. Lutz, 1918, Field Book Ins., p. 468, PI. c, fig. 8. [R. ignota of Ashmead papers is R. globuloides Beutenmüller.]
Rhodites carolina Ashmead, 1887, Trans. Amer. Ent. Soc., XIV, pp. 133, 148. Dalla Torre and Kieffer, 1902, Gen. Ins., Hymen., Cynip., p. 78. Dalla Torre and Kieffer, 1910, Das Tierreich, XXIV, p. 718. Thompson, 1915, Cat. Amer. Ins. Galls, pp. 23, 45.
Rhodites carolinus Dalla Torre, 1893, Cat. Hymen., II, p. 126.
Rhodites ignotus Dalla Torre, 1893, Cat. Hymen., II, p. 127. Dalla Torre and Kieffer, 1902, Gen. Ins., Hymen., Cynip., p. 78. Beutenmüller, 1907, Bull. Amer. Mus. Nat. Hist., XXIII, p. 634, P1. XLIII, figs. 7-10. Dalla Torre and Kieffer, 1910, Das Tierreich, XXIV, p. 718, fig. 402. Smith, 1910, Ins.N. J., p. 604. CosensS, 1912, Trans. Can. Inst., IX, p. 350. Viereck, 1916, Hymen. Conn., p. 441, P1. vi, fig. 3. Felt, 1918, N. Y. State Mus. Bull., CC, p. 146, fig. 149 (7-10).
Female.—Antennæ, head, and thorax black; basal joints of antennæ rufous; abdomen and legs rufous red; radial area of wings clouded but with a large clear spot in the center. Head: broad; black or piceous black, shallowly rugoso-punctate, more finely punctate on the vertex, with a long pubescence on the face; antennæ short, 14-jointed, black or piceous black, joints one and two light rufous to rufopiceous Thorax: black, coarsely rugose, hairy; parapsidal grooves similarly rugose, widely divergent from the scutellum, extending a little more than half the way to the pronotum; median groove lost in the rugosities of the mesonotum; anterior parallel lines fine, smooth, slightly raised, not extending half-way to the scutellum; lateral lines broader, smooth, about as long as the parapsidal grooves; scutellum long, elevated, depressed at the base but without distinct foveæ, entirely coarsely rugose; mesopleurie rather smooth and shining, in part coriaceous, a narrow rugose band extending across the middle. Abdomen: bright rufous red, the tip of the hypopygium rufo-piceous; smooth and shining, the lower edge of the hypopygium hairy; abdomen long and slender; the second segment produced dorsally almost to the tip of the abdomen; hypopygium "plow-shaped." Legs: bright rufo-piceous including the coxæ, the last joints of the tarsi rufo-piceous; densely hairy; tarsal claws simple. Wings: