Gahan, Arthur Burton

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Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. Excerpt from book: Section 1A REVISION OF THE NORTH AMERICAN ICHNEUMON- FLIES OF THE SUBFAMILY OPIINAE. By A. B. Gahan, textit{Of the Bureau of Entomology, United States Department of Agriculture. It is the intention to present, in the following pages, a synoptic revision of the Braconid subfamily Opiinae for North America, including only those Mexican and West Indian species the types or paratypes of which are in the United States National Museum. Keys to genera and species are accompanied by descriptions of nineteen new species, together with some notes on described forms. With the exception of seven species described by H. L. Viereck, the types of which are in the Snow collection at the University of Kansas and not obtainable, type or paratype specimens of all the described species have been studied. Through Prof. S. J. Hunter, entomologist of Kansas University, notes on the Viereck types were obtained which, together with the original descriptions, have permitted the placing of these species in the keys. Thanks are due and are cheerfully accorded to the Rev. V. A. Huard, of the Provincial Museum, Quebec, Canada, for the loan of the Provancher types, and to Prof. S. J. Hunter for the notes already referred to. Superfamily ICHNEUMONOIDEA. Family BRACONIDAE. Subfami1y OPIINA.E. 1862. textit{Opioidae Foerster. family 24, Verh. d. Naturh. ver-Preuss. Rheinl., vol. 19, pp. 229, 258. 1885. textit{Opiides Marshall, Trans. Ent. Soc. London, p. 11. 1887. textit{Opiinae Cresson, Syn. Hym. North America, pp. 56, 61. 1888. textit{Opiidae Marshall, Spec. d. Hym. d. Eur., vol. 4, p. 67. 1901. textit{Opiinae Ashmead, Proc. U. S. Nat. Mus., vol. 23, pp. 112,133. 1904. textit{Opiinae Szeplioeti, Wytsman's Genera Insectorum, Braconidae, pp. 5 and 158. Head transverse; occiput (except in the genus textit{Ade...