CHARLES W. HOOKER. 21 



Location of specimens. — I do not know what became of 

 Cameron's specimens of this species, but they are not in the 

 British Museum, and no others are recorded. 



Genus OPHION Fabr. 



Ophion Fabricius, Suppl. Ent. Syst., pp. 210, 235 1798. 



Syst. Fiez., p. 113, n. 18 1804. 



Olivier, Encycl., Meth., VIII, p. 506 1811. 



Gravenhorst, Ichn. Europ., Ill, pp. 686-706 1829. 



" Brulle, Hist. Nat. Ins., Hym., IV, pp. 75, 76, 137 1846. 



" Holmgren, Ofvers. K. Vet. Akad. Forhandl., I, 15, pp. 



321-330 1858. 



" Norton, Proc. Ent. Soc. Phila., I, p. 558 1863. 



" Gerstaecker, Handbuch der Zoologie, p. 210 1863. 



Kirchner, Cat. Hym. Europ., p. 86, App., p. 11 1867. 



" Cresson, Proc. Acad. Nat. Sci. Phila., 1873, p. 374 1874. 



" Taschenberg, Zeitschr. f. d. Ges. Natur., 46, pp. 421-438....1875. 

 " Vollenhoven, Pinacographia, pp. 44, 61; pi. 28, figs. 1-6; 



pi. 39, figs. 1-8 1880. 



Provancher, Faun. Ent. Can., Hym., IV, pp. 348-350 1883. 



Packard, Proc. Bost. Soc. Nat. Hist., 21, p. 18 1883. 



Bridgman and Fitch, The Entomologist, 17, pp. 26, 178 ..1884. 



Cameron, Biol. Centr. Amer., Hym., I, pp. 290, 293 1886. 



" Cresson, Syn. Hym. N. A., pp. 43, 149, 200 1887. 



Riley, lus. Life, I, p. 98 1888. 



Thomson, Opusc, Ent., 12, p. 1187 1888. 



Brauns, Arch. Ver. d. Nat. Mecklenb., pp. 75, 86 1889. 



'• Webster, Ins. Life, IV, p. 179 1891. 



" Ashmead, Smith'slns. N. J., p. 580 (second edition) 1899. 



Proc. U. S. Nat. Mus., No. 1206, pp. 87, 180 



(Vol. XXIII, 1901) 1900. 



Dickinson, Moths and Butterflies, p. 177, fig. 160 1901. 



Dalla Torre, Cat. Hym., Ill, p. 187 1902. 



Eliot and Soule, Caterpillars and Their Moths, p. 257 1902. 



Felt, N. Y. State Mus., Bull. 76, pp. 101, 113 (nine- 

 teenth State Ent. Rep.), 1903. 



Szepligeti, Gen. Ins., Hym., 34me Fasc, pp. 22, 29 1905. 



Schmiedeknecht, Hym. Mitteleurop., p. 593, 110 1907. 



Opusc. Ichneum., XVIII, p. 1438 1908. 



" Morley, The Entomologist, XLII, p. 136, June 1909. 



Viereck, Smith's Ins. N. J., p. 621 (third edition) 1910. 



Anterior wing with distinct stigma, discocubital vein usu- 

 ally angularly broken and appendiculate, base of radius 

 straight, not thickened, radial and cubital veins usually 



TRANS. AM. ENT. SOC, XXXVIII. 



