itive instances of dimorphism, or of a double-brooded condition without an accompanying heterogeny, among the species of the group.
Andricus futilis (Osten Sacken)
Range.—Ontario (Jarvis). New Hampshire: Wolfeboro. Massachusetts: Magnolia (Clarke); Boston, Blue Hills, Sharon, Marthas Vineyard; Springfield (Stebbins). Connecticut: Waterbury (Bassett). New York: New York City (Beutenmüler). New Jersey: throughout (Smith). Pennsylvania: Shawnee (Thompson). District of Columbia: Washington (Osten Sacken). Maryland: Plummer's Is. (Weld). Ohio: Sandusky (Sears). Indiana (Cook). Illinois: Fort Sheridan (Weld). Michigan: Ionia Co. (Gillette).
Andricus futilis form futilis (Osten Sacken)
Plate XXX, Figures 28 and 29
Cynips quercusfutilis Osten Sacken, 1861, Proc. Ent. Soc. Phila., I, p. 64.
Cynips quercus papillata Osten Sacken, 1861, idem, I, p. 64.
Cynips q. futilis Basett, 1863, Proc. Ent. Soc. Phila., II, p. 329; 1873, Can. Ent.,V, p. 92; 1873, ProC. Ent. Soc. Lond., p. xv.
Cynips futiilis Osten Sacken, 1865, Proc. Ent. Soc. Phila., IV, p. 339.
Cynips futilis Osten Sacken, 1865, idem, IV, pp. 346, 349, 352, 355.
Cynips papillata Osten Sacken, 1865, idem, IV, pp. 339, 346, 349, 352, 355.
Andricus futilis Osten Sacken, 1865, idem, IV, p. 379. Gilette, 1889, Psyche, V, p. 185. Dalla Torre, 1893, Cat. Hymen., II, p. 88. Jarvis, 1908, Report Ent. Soc. Ont., p. 86, P1. B, fig. 4. Beutenmüller, 1904, Bull. Amer. Mus. Nat Hist., XX, p. 27; 1904, Amer. Mus. Nat. Hist. Guide Leaf. 16, p. 13, fig. Felt, 1906, Ins. Aff. Pk. & Woodl. Trees, II, p. 710; 1918, N. Y. State Mus. Bull. CC, p. 88, fig. 83, P1. II. fig. 3. Cook, 1910, Mich. Geol. & Biol. Surv. Pubil. I, p. 27. Sears, 1914, Ohio Nat., XV, p. 381, fig. 21.
Andricus papillata Osten Sacken, 1865, Proc. Ent. Soc. Phila., IV, p. 379.
Andricus (Callirhytis) futilis Mayr, 1881, Gen. Gallenbew. Cynip., p. 28. Bassett, 1882, Amer. Nat., XVI, p. 246. Aahmead, 1885, Trans. Amer. Ent. Soc., XII, pp. 294, 295. Packard, 1890, 5th Report. U. S Ent. Comm., p. 105. Beutenmüller, 1892; Bull. Amer. Mus. Nat. Hist., IV, p. 254, P1. II, fig. 1. Vireck, 1916, Hymen. Conn., p. 433.
Cynips (Andricus) papillata Pacakard, 1881, U. S. Ent. Comm. Bull., VII, p. 56.
Cynips (Andricus) futilis Packard, 1881, U. S. Ent. Comm. Bull., VII, p. 56.
Andricus (Callirhytis) papillatus Aahmead, 1885, Trans. Amer. Ent. Soc., XII, p. 295. Packard, 1890, 5th Report U. S. Ent. Comm., p. 105. Beutenmüller, 1892, Bull. Amer. Mus. Nat. Hist., IV, p. 255.
Callirhytis futilis Ashmead, 1885, Trans. Amer. Ent. Soc., XII, p. 303; 1887, idem, XIV, p. 129. Bassett, 1889, Psyche, V, pp. 235-237. Packard, 1890, 5th Report U. S. Ent. Comm., p. 109. Riley, 1895, Sci., I, p. 461; 1895, Proc. Ent Soc. Wash., III, p. 261. Dalla Torre and Kieffer, 1910, Gen. Ins., Hymen., Cynip., p. 66. Smith, 1910, Ins. New Jersey, p. 601. Siebbens, 1910, Springfield (Mass.) Mus. Bull., II, p. 27. Thompson 1915, Cat. Amer. Ins. Galls, p. 13, P1. v, fig. 49. LUTZ, 1918, Field Book Ins., p. 462, P1. xcvi, fig. 4.
Callirhytis papillatus Aahmead, 1887, Trans. Amer. Ent. Soc., XIV, p. 129. Cook, 1902, Ohio Nat., II, p. 269, fig. 30; 1903, idem, III, p. 427, fig. 64; 1904, idem,
