Holland, J. G. The Moth Book. New York, 1908. Scudder, S. H. The Butterflies of New England. Strecker, H. Lepidoptera, Rhopaloceres and Het-
eroceres, Indigenous and Exotic, etc. Read-
ing, Pa., 1872-1877. Supplements 1898-
Also numerous monographs and synopses of separate families, genera, etc., by A. S. Packard, A. R. Grote, J. B. Smith, B. Neumoegen, H. G. Dyar, G. F. Hampson and many others, in Journ. N.Y. Ent. Soc., Trans. Am. Ent. Soc., Bull. U.S.N.M., Proc. U.S.N.M., Bull. Buffalo Soc. Nat. Hist., Ent. News, Can. Ent. etc. (See " The Moth Book ").
Cresson, E. T. Synopsis of the families and genera of the Hymenoptera, north of Mexico, together with a Catalogue of the described species and bibliography (Trans. Am. Ent. Soc., supplementary volume, Part I. 1887).
Ashmead, W. H. Numerous papers on the classification of the various superfamilies; in Can. Ent., Trans. Am. Ent. Soc., and Journ. N.Y. Ent. Soc.
Also numerous monographs and synopses of separate families, genera, etc., by E. T. Cresson, W. H. Ashmead, W. J. Fox, Edward Norton, L. O. Howard and others, in Trans. Am. Ent. Soc., Can. Ent., Proc.