INSECTA. 129 



Section II. Heteromera. 



Five joints to the four first tarsi; one less in the two last. 

 One remarkable genus. 



GENUS CANTHARIS. 



Elytra soft and flexible ; head a little wider than the cor- 

 selet, which is nearly ovoid, and reflexed anteriorly ; antennae 

 filiform ; tarsi with entire joints and cleft hooks ; diverse 

 species are employed externally as epispastics. They are 

 seen in May and June, principally upon the ash and lilac. 



Section III. Tetramera. 



Four joints to each tarsus ; they live on flowers or the 

 leaves of plants. Two remarkable genera. 



GENUS I. CALANDRA. 



Antennae clubbed and inserted upon a sort of trunk pro- 

 duced by the anterior prolongation of the head; larvae without 

 feet, and formidable for their devastations among grain, of 

 which they devour the interior without touching the bark ; 

 a pair will produce from six to fifteen young in a month. 

 The most common species are known in the larva state by 

 the name of Weevil. 



GENUS IT. PRIONUS. 



Body depressed ; corselet spiny ; antennae very long, like 

 bristles and placed between the eyes; all the species are 

 generally remarkable for the elegance of their forms and the 

 brilliancy of their colours ; they live in woods upon the trunks 

 of trees, in the interior of which they exist as larvae, nymphs 

 and perfect insects. 



Section IV. Trimera. 

 GENUS COCCINELLA. 



Little Insects with hemispherical bodies, adorned with 

 beautiful colours ; their larvae live principally upon grubs ; 

 and on this account are useful in gardens. 



