CONTENTS. Vn 



Page. 

 'The Genotypes op the Sawflies and Woodwasps, or the Superfamili- 



Tenthredinoidea S. A. Rohwer. . 09 



Introduction 69 



An alphabetical catalogue of the generic names used in the Tenthredinoidea, 



with their type speoies 69 



The designation of the type species of genera 69 



Rules of zoological nomenclature for the designation of type species. . 71 



Catalogue 72 



An index to the genotypes 92 



Synonymy of certain genera 98 



The work of William H. Ashmead on the Tenthredinoidea 102 



An alphabetical list of the genera of Tenthredinoidea described by 



William H. Ashmead, with the determined synonymy 103 



Bibliography of the more important writings of William H. Ashmead 



on Tenthredinoidea 104 



Description of the genera and species 104 



A PvEvision of the Powder-Post Beetles of the Family Lyctid^e of the 



United States and Europe E. J. Kraus and A. D. Hopkins. . Ill 



Introduction Ill 



History 112 



The principal characters of the family Lyctidse 114 



Synopsis of genera 115 



Revisional notes - 115 



Synopsis of species of the genus Lyctus 116 



Systematic notes 121 



Genus Lyctus Fabricius 121 



Lyctus impressus ComoUi 121 



Lyctus punctatus (Le Conte) 121 



Lyctus californicus Casey 121 



Lyctus parallelopipedus (Melsheimer) 121 



Lyctus curtulus Casey 122 



Lyctus politus n. sp 122 



Lyctus hrunneus (Stephens) 123 



Lyctus pubescens Panzer 123 



Lyctus opaeulus Le Conte 123 



Lyctus suturalis Faldermann 124 



Lyctus cavicollis Le Conte 124 



Lyctus planicollis Le Conte 124 



Lyctus parvulus Casey 125 



Lyctus linearis (Goeze) 125 



Genus Lyctoxylon Reitter 126 



Lyctoxylon japonum Reitter 126 



Genus Minthea Pascoe 126 



Minthea rugicollis (Walker) 127 



Minthea stichothrix (Reitter) 127 



Bibliography 128 



Appendix. Notes on habits and distribution, with list of described species. 130 



Habits 130 



Distribution 132 



The Lyctidai represented in the collections examined by Ki-aus and 



Hopkins (classification according to Kraus) 136 



List of described species, with synonymy according to the literature 



and recent studies by the authors 137 



