NO. 1988. STUDIES OF NORTH AMERICAN WEEVILS— PIERCE. 421 



BRA.CI3:YK,H:i2Sri]Sr.;E, new sizbfamily. 



Table of tribes of Brachyrhininx . 



I. Elytra scarcely surpassing width of prothorax at base, humeral angles rounded; 



body apterous; metastemum short, intercoxal piece large, broad. 



1. Tarsal claws free. 



a^. Corbels of posterior tibiae cavernous Celeuthetini, new tribe, 



a}. Corbels of posterior tibiae open. 



6'. Antennae more or less long and slender; outer joints of funicle long. 



Brachyrhinini Bedel (1885). 



b'^. Antennae at least moderate, robust for the most part; outer funicular joints 



short or moniliform Trachyphlceini, new tribe. 



2. Tarsal claws connate. 



c'. Corbels of posterior tibiae cavernous Oosomini, new tribe. 



c?. Corbels of posterior tibiae open. 



c?'. Antennal club oval, rarely oblong-oval Simoini, new tribe. 



c?2. Antennal club slender, elongate Laparocerini, new tribe. 



II. Elytra wider than prothorax at base. 



1. Body apterous; metasternum short, intercoxal piece large; tarsal claws con- 



nate; corbels of posterior tibiae cavernous Episomini, new tribe. 



2. Body usually winged ; metasternum elongate; intercoxal piece variable, 

 rt'. Tarsal claws free. 



b^. Corbels of posterior tibiae cavernous Eustylini, new tribe. 



b^. Corbels of posterior tibiae open; intercoxal piece small, ogival. 



Myllocerini, new tribe. 



a^. Tarsal claws connate; corbels of posterior tibiae open; intercoxal piece small 



ogival Phyllobiini Bedel (1885). 



No representatives of the Oosomini, Episomini, Laparocerini, or 

 Myllocerini occur in Nortli America. 



CELEUTHETINI, new tribe. 



Only one American genus, Agra'phus Schonlierr, may be pro- 

 visionally referred here. It bears a strong resemblance to CeleM- 

 thetes, but differs in important respects. 



Genus AGRAPHUS Say (1831). 

 Agraphus Say, Descr. N. A. Cure, 1831, p. 13. 

 The monotype of this genus is bellicus Say. It was originally used 

 as a subgenus in Peritelus. 



Tribe BRACHYRHININI Bedel (1885). 

 Table of genera of Brachyrhinini. 



1. Metasternal side-pieces entirely concealed by the elytra; suture obliterated. 



Hind tibiae with two short fixed spurs Brachyrhinus Latreille. 



2. Metasternal suture distinct in entire length. 

 a^. Metasternal side-pieces linear. 



b^. Hind tibiae with two short, fixed, terminal spurs; first suture of abdomen 



feebly arcuate. Front slightly transversely impressed Sciopithes Horn. 



b^. Hind tibiae without terminal spurs; first suture strongly arcuate at middle. 



Front not impressed Agronus Horn. 



o^. Metasternal side-pieces moderately wide. Hind tibiae without terminal spur; 

 first suture of abdomen strongly arcuate at middle Neoptochus Horn. 



