ANTHKIBIDAE. 239 



J. Eyes entire. 



1, Thorax flattened, angular at sides ; eyes with 

 distinct orbit. 



Eostrum parallel-sided, somewhat transverse, truncate in 

 front ; antennae scarcely reaching middle of thorax, first 

 two joints longer than rest ; transverse ridge on thorax 

 placed before base, curved, interrupted and near base in 

 middle, rounded obliquely at ends, reaching middle of 

 sides ; first tarsal joint scarcely longer than second. 



Platyrhinus, Clairv. 



2. Thorax more or less convex, not angular at sides ; 

 eyes without orbit. 



Eostrum square or somewhat elongate ; antennae short ; 

 transverse ridge on thorax placed before base ; first tarsal 

 joint much longer than second. Tropideres, Schoenh. 



II, Eyes slightly emarginate. 



Eostrum much longer than broad, slightly dilated in 

 front, apex strongly triangularly emarginate ; antennae of 

 male as long as body, with first joint very large, second 

 very small, next six elongate, about equal, last three form- 

 ing an elongate club ; antennae of female scarcely reaching 

 base of thorax, joints two to eight elongate, third a little 

 longer than rest, last three forming a moderately large 

 club ; transverse ridge on thorax confused with base, ends 

 turning at a right angle, and reaching middle of sides ; 

 anterior coxae placed rather far apart ; body oblong. 



Anthribus, Geoffr. 



b. Scrobes forming a long furrow, reaching whole length 

 of sides of rostrum and much approximated beneath. 



Eostrum very short, cut obliquely on each side, truncate 

 at apex ; antennae a little longer than head and thorax 

 together, first two joints larger than rest, about equal, next 

 six very short, last three forming an oblong club ; eyes 

 entire; tarsi short and rather broad, first and second 

 joints about equal ; body short or oblong oval. 



Brachytarsus, Schoenh. 

 S, Antennae inserted on upper surface of rostrum. 



Eostrum strongly transverse, very slightly rounded in 

 front, scrobes small, rounded ; antennae of male a little 

 longer than thorax, of female scarcely as long as thorax ; 



