August, '10] PIERCE : ECONOMIC WEEVILS 359 



b. Antennae stout, last joint of funicle short, broad and very close to 



club, first two joints of tarsi glabrous Graphorliinus Schonherr 



bb. Antennae more slender, joints of funicle conical, the last distant from 



the club; tarsi pubescent Epicccrus Schonherr 



aa. Articular face of hind tibiae scaly; support of deciduous piece very 



prominent; antennae rather slender, club distinct .... Ano^nadus Horn 



II. Side-pieces of mesosternum diagonally divided and equal or very nearly 



so, episternum distant from the elytral margin, separated by the epi- 



meron Group Artipi 



c. Tenth elytral strias entire. 



d. Genae feebly emarginate; anterior tibiae not denticulate within but 

 with a row of sharp spines; second segment of abdomen not longer 



than the two following. Omileus Horn 



dd. Genae strongly emarginate; anterior tibiae denticulate within; sec- 

 ond segment of abdomen usually as long or longer than the two 

 following, 

 e. Tips of hind tibiae with, at most, a double row of fimbriae. 



f. Second joint of funicle elongate, longer than first Aramigus Horn 



ff. Second joint of funicle shorter than first Lepiclocricus n. g. 



ee. Tips of hind tibite with oval scaly space; second joint of funicle 



elongate, longer than first PJiacepTiolis Horn 



cc. Tenth elytral striae confluent with the ninth; second segment of ab- 

 domen longer than the two following; genae strongly emarginate. 



Artipus Schonherr 



GrapJiorhinus Schonherr 



Graphorhinus vadosus Say is the only representative of this genus. 

 It has been taken feeding on clover leaves. 



Epiccerus Schonherr 



The genus .Epicterus presents considerable difficult}^ in its study on 

 account of the great variation in color pattern and the sexual dif- 

 ferences. It seems probable that the many references of injury to 

 economic plants charged against Epiccerus imhricatus Say are ap- 

 plicable to a number of different species. 



In general the females are characterized by the more inflated abdo- 

 men, the thorax broadest at base and the apical declivity generally 

 concave. The males have the body more cylindrical, the elytra not 

 inflated, the thorax broadest at middle and the apical declivity straight 

 or convex, seldom shallowly concave. It is therefore erroneous to 

 base a table of differentiation of species upon the widest part of the 



# 



thorax. 



Table of Species 



A. Frontal fovea round; beak not sulcate and seldom even shallowly depressed 

 on median line, not densely clothed with 'scales, 

 a. Frontal fovea small; beak medianly shallowly depressed; pronotal 

 punctuation very fine, with few large depressions, median line broadly 



