298 INSECTS. COLEOPTERA. 



filiform, serrated or pectinated, composed of eleven joints ; 

 jaws bifid ; posterior thighs generally spinous ; eyes notched. 



The larvae of this genus are very destructive to the seeds of leguminous plants. 

 The perfect insect is found on the flowers of different plants. 



B. pisi, Lin. Body blackish, more or less covered with cinereous 

 hairs ; four first joints of the antennae small and reddish, the 

 others black and serrated ; extremity of the abdomen whitish, 

 with two small black spots. 2 lines long. Inhabits Southern 

 Europe and America. Lat. Hist. xi. pi. 91, fig. 4. 



TRIBE II. ANTHRIBIDES. 



Antennae composed of elongated joints, and terminated in a club, 

 formed in the greater number of the three last ; labrum very 

 small, and often inclosed in a notch of the chin ; eyes globu- 

 lar or oval. 



The abdomen in this tribe is of a long square form, and the posterior bending of 

 the elytra is more abrupt than in the preceding. The posterior feet differ little from 

 the others. The penult joint of the tarsi of many is placed between the lobes of 

 the preceding. The chin is often large and lunulated. The larvae live for the most 

 part in wood. 



I. Four joints in all the tarsi ; the second broad and strongly bilobed. 



1. Third joint of the tarsi engaged in the lobes of the preceding ; chin very large, 

 lunated, inclosing the labium in the notch. 



A. Antennae thick, almost monilifoim ; the last three joints forming a swelling in 

 the form of a solid button. 



Gen. XYLINODES. 



B. Antennae slender, terminated in an elongated and three-jointed club. 



a. Antennae of the males longer than the body, almost filiform, or scarcely clubbed, 

 terminated in an elongated conical joint ; those of the female short and clubbed. 



Gen. A&THRIBUS. 



b. Antennae of both sexes slightly different, shorter than the body, distinctly clubbed. 



Gen. PLATYRHINUS. 



2. Third joint of the tarsi projecting beyond the preceding, or in part disengaged ; 

 chin small, or of medium size, almost square, and not including the labium. 



A. Body subovoid ; rostrum very short ; antennae almost granular, and shorter than 

 the head and thorax ; anus uncovered. 



Gen. URODON, (Schcenh. ; Brucheks, Dej.) 



B. Body elongated, narrow, rostrum longer than the head, depressed, widened at 

 the end ; antennae with obconical joints, a little longer than the head and thorax ; 

 anus covered. 



Gen. RHINOMACER. (Olir. Dej.) 



II. Five joints in the four anterior tarsi, four in the posterior, all entire, or not dis- 

 tinctly bilobed. 



Body depressed, glabrous ; rostrum short, much flattened, with the maxillary 

 palpi projecting, and thickest at the end ; antennae short, granulated, the three or four 

 last joints forming the club. The larvae live in old wood, or under the bark of trees. 

 Gen. RHIXOSIMTJS, SALPINGUS. 



Gen. ANTHRIBUS, Lat. Geoff. Fab. Curculio, Lin. 

 Body more or less oblong or ovoid ; antennae longer in the males 

 than the females, the club formed of three joints ; eyes en- 

 tire ; labrum short and transverse ; mandibles with one or 



