NO. 1988. STUDIES OF NORTH AMERICAN WEEVILS— PIERCE. 3V3 



Subfamily ERKTvUSTIlSr.^: Pascoe (1870). 

 Table of tribes of Eremninx. 



1. Beak as large as head at base and continuous with, it Cyphicerini, new tribe. 



2. Beak narrower than head. 



a^. Pterygia of beak not or hardly divaricate Eremniki, new tribe. 



a?. Pterygia of beak more or less divaricate Phytoscaphini. new tribe. 



Only the tribe Eremiiim is represented in the United States. 



EREMNINI, new tribe. 

 Genus PHYXELIS Schonherr (1843). 

 Phyxelis Schonherr, Gen. et Sp. Cure, vol. 7, 1843, pt. 1, p. 122. 

 The type was originally designated as rigidus Say. 



E;Na?IM:i2Sr.^E, new subfainily. 

 Table of tribes of Entiminse, 



1. Metasternum very short. 



a^. Beak robust, quadrangular, more or less distinctly trisulcate above; scrobes 

 rapidly inferior, well defined. Eyes always narrow and acute below, par- 

 tially concealed by the ocular lobes Ophryastini Horn (1876). 



a^. Beak rounded at angles, subcylindrical, seldom sulcate above, at most moder- 

 ately robust; scrobes feebly inferior, usually directed toward the eyes or visible 

 from above and badly defined. Eyes oval, not acute below and usually free. 



Tropiphorini, new tribe. 



2. Metasternum more or less elongate. 



h^. Anterior coxas not contiguous Leptostethini, new tribe. 



62. Anterior cox?e contiguous. 



c'. Beak scarcely or feebly enlarged at apex; antennal club oval, rarely oblong- 

 oval Mencetiini, new tribe. 



c2. Beak robust strongly enlarged at apex in almost all; antennal club at least 

 oblong-oval, often very elongate Entimini, new tribe. 



The last three tribes are not represented in the United States. 

 Tribe OPHRYASTINI Horn (1876). 

 Table of genera of Ophryastini. 



1. Abdomen with second segment rarely as long as the two following together, first 



suture straight. Intercoxal process moderately wide. 



fli. Third tarsal joint broadly bilobed, and much wider than second, pubescent 



beneath. 



6'. Rostral striae deep, the lateral ones strongly angulate at base of beak, meeting 



the scrobes beneath the eyes; second ventral segment nearly as long as 



third and fourth combined Sapotes Casey . 



6^. Rostral striae not so sharply outlined, 

 c'. Rostral striae evideht, straight; second ventral segment much shorter than 

 third and fou'th combined. 



d^. Mentum concealing palpi entirely Eupagoderes Horn. 



rf2. Palpi projecting beyond apex of mentum (a Mexican genus). 



Caccophryastes Sharp. 

 c^. Rostral striae obsolete, indicated only by faint depressions; second ventral 

 segment subequal to the third and fourth combined. 



Amydrogmus, new genus. 



