ATTEMPTED DIVISION OF BRITISH INSECTS. 421 



tables, feeding on the Aphites which infest them. Cacicula, 

 Chilochorus, Coccinella. 



Natural Order. — Cassidites, Tortoise-beetles. 



Larva more obese and obtuse, spiny or radiated round the margin ; 

 the tail furnished with a remarkable forked appendage, on which 

 the excrement accumulates, forming a kind of umbrella, which 

 protects it in some degree from observation. Inhabits and feeds 

 on vegetables. Pupa changes in the same situations. Imago, 

 with moniliform antennse ; mandibles and maxillae obtuse and 

 minute ; galea palpiform, exarticulate ; head completely hidden 

 by the prothorax, which, together with the fore-wings, form a 

 complete covering, like the carapax of a tortoise; tarsi four-jointed; 

 form nearly hemispherical. Inhabits vegetables, on which it 

 feeds. Cassida. 



Natural Order. — Chrysomelites. 



Larva still more obese, inactive ; legs short. Feeds on the leaves 

 of vegetables. Pupa sometimes attaches itself, and changes in 

 the same situations, and sometimes in the earth. Imago, with 

 moniliform antennae, inserted far from each other ; mandibles 

 rather obtuse ; maxillae obtuse ; galea palpiform, exarticulate ; 

 head nearly concealed by the prothorax ; tarsi four-jointed ; legs 

 not formed for leaping ; form very globose, inactive ; flies seldom. 

 Inhabits vegetables, on the leaves of which it feeds. When 

 touched frequently emits a red fluid from the mouth. Crypto- 

 cephalus, Clythra, Chrysomela. 



Natural Order. — Halticites, Flea-beetles. 



Larva and pupa nearly as in the preceding Order ; the former 

 rather less obese. Imago, with much longer and more filiform 

 antennae, and inserted nearer together ; more acute mandibles ; 

 maxillae obtuse ; galea palpiform and articulate ; hind-legs in- 

 crassated, formed for leaping ; form less globose. Inhabits and 

 feeds on vegetables ; its size is little larger than that of a flea, 

 an insect which it emulates in the activity of its leaps ; it is 

 excessively injurious to crops, sometimes causing a total failure 

 of turnips, rape, &c. Haltica. 



Natural Order. — Galerucites. 



Larva and pupa nearly as in the Chrysomelites. Imago, with long 

 filiform antennae, inserted much nearer to each other than in 

 either of the two preceding Orders ; mandibles acute ; maxillae 



