MISCELLANEOUS CONTRIBUTIONS TO THE KNOWLEDGE 

 OF THE WEEVILS OF THE FAMILIES ATTELABID^ AND 

 BRACHYRHINID.^. 



By W. DwiGHT Pierce, 



Of the Bureau of Entomology, United States Department of Agriculture. 



The present paper contains a large number of miscellaneous studies 

 which have been made in the taxonomy of the weevils of the tribe 

 Rhynchitini, family Attelabidse, and of the family Brachyrhinidse. 

 The paper includes fixations of the types of all of the North American 

 genera in these two groups and also descriptions of 4 new genera, 2 

 new subgenera, 24 new species, and 9 new varieties. 



A complete paper on the types of the genera of the Rhynchophora 

 for the world is in the process of preparation. 



The classification used below is to a large measure based upon 

 that proposed by Lacordaire, although many alterations have been 

 made, and group names have been given in accordance with our 

 established rules of nomenclature. 



Family ATTELABID^ Kirby (1837). 



Subfainily RIIYlSrCHITITsr.^: Fascoe (1S70). 



The following tables, while not entirely satisfactory, are the best 

 that can be offered without considerable additional study: 



Key of tribes of Rhynchitinm. 



1. Elytra striately punctate; third joint of tarsi more or less dilated. 



Rhynchitini, new tribe. 



2. Elytra not striately pimctate; third joint of tarsi not dilated. 



AuLETiNi, new tribe. 

 BHYNCHITINI, new tribe. 



Key to genera of Rhynchitini. 



Posterior coxae transverse, reaching metepistema, which are very narr 



1. Head arcuately emarginate at base; antennae with first joint, only, of funicle, 



sensibly longer than wide; centro-stemal piece separating the apices of the 

 proepimera Deporaus Leach. 



2. Head not emarginate or truncate at base; antennae with funicular joints 2 to 4, 



at least, longer than wide. 



a^. Pygidium covered by elytra Eugnamptus Schonherr. 



a^. Pygidium exposed. 



¥. Apices of proepimera separated by centro-stemal piece. . Merhynchites Sharp. 



b^. Apices of proepimera joined Rhynchites Schneider. 



Proceedings U. S. National Museum, Vol. 45— No. 1988. 



365 



