at these points galls of the agamic generation were obtained and the agamic female was again bred. Triggerson's account furnishes many details of the life history of the species, and no attempt need be made here to give much more than descriptions of the galls and adults of the two generations.
According to Triggerson, the galls of this form were first visible about May 12; the adults emerge from May 21 (indoors) or May 29 (out-of-doors) until June 5. They oviposit immediately to produce the agamic aeneration.
Andricus fulvicollis form erinacei (Beutenmüller)
Plate XXXI, Figure 34
Philonix fulvicollis Fitch, 1859, 5th Report on Noxious. .. Ins. N. Y., p. 783. Osten Sacken, 1865, Proc. Ent. Soc. Phlla., IV, p. 353. Ashmead, 1903, Psyche, X, p. 148. Felt, 1906, Ins. Aff. Pk. & Woodl. Trees, II, p. 711. Beutenmüller, 1909, Bull. Amer. Mus. Nat. Hist., XXVI, p. 254; 1918, Ent. News, XXIX, p. 328. Vierick, 1916, Hymen. Conn., p. 381.
Cynips q. erinacei Walsh, 1864, Proc. Ent. Soc. Phila., II, p. 483.
Terasfulvicollis Osten Sacken, 1865, Proc. Ent. Soc. Phila., IV, p. 379.
Cynips (Teras) fulvicollis Packard, 1881, U. S. Ent. Comm. Bull., VII, p.56.
Acraspis erinacei Mayr, 1881, Gen. Gallenbew. Cynip., p. 30. Ashmead, 1885, Trans. Amer. Ent. Soc., XII, p. 295; 1887, Trans. Amer. Ent. Soc., XIV, p. 128; 1890, Colo. Biol. Assoc. Bull., I p. 38. Gilleite, 1888, 27th Report Agric. Mich., p. 470; 1889, Psyche, V, pp. 186, 221; 1892, Proc. Iowa. Acad. Sci., I, part 2, p. 112. Packard, 1890, 5th Report U. S. Ent. Comm., p. 106. Beutenmüller, 1892, Bull. Amer. Mus. Nat. Hist., IV, p. 259, P1. xii, fig. 1; 1904, Amer. Mus. Nat. Hist. Guide Leaflet 16, p. 18; 1904, Amer. Mus. Journ., IV, p. 104, fig. 35. Dalla Torre, 1893, Cat. Hyman., II, p. 64. Bridewell, 1899, Trans. Kans. Acad. Sci., XVI, p. 203. Dalla Torre and Kieffer, 1902, Gen. Ins., Hymen., Cynip., p. 58. Cook, 1905, 29th Report Dept. Geol & Nat. Res. Ind., p. 832, fig. 25; 1910, Mich. Geol. & Biol. Surv. Publ. 1, p. 28. Jarvis, 1906, 37th Report Ent. Soc. Ont., p. 70. Flt, 1906, Ins. Aff. Pk. & WoodlTrees, II, pp. 619, 627. Thompson, 1915, Cat. Amer. Ins. Galls, pp. 15, 35. Fagan, 1918, Amer. Nat., LII, p. 157. Lutz, 1918, Field Book Ins., p. 462, P1.XCVII, fig. 4.
Biorhiza fulvicollis Ashmead, 1885, Trans. Amer Ent. Soc., XII, pp. 296, 304. Packard, 1890, 5th Report U. S. Ent. Comm., pp. 106, 110. Dalla Torre and Kieffer, 1910, Das Tierreich, XXIV, p. 402.
Biorrhiza fulvicollis Dalla Torre, 1893, Cat. Hymen., Cynip., II, p. 60. Dalla Torre and Kieffer, 1902, Gen. Ins., Hymen., Cynip., p. 56.
Philonix erinacei Beutenmüller, 1909, Bull. Amer. Mus. Nat. Hist., XXVI, p. 247 [first description of adult named erinacei], P1. XLIII, fig. 24. Smith, 1910, Ins N. J., p. 598.. Cosens, 1912, Trans. Canad. Inst., p. 341, fig. 64.
Acraspis quercus-erinacei Dalla Torre and Kieffer, 1910, Das Tierreich. XXIV, p. 413, fig. 118.
