COLEOPTERA. 



259 



Cassida. 



feeds on vegetables ; flies more readily than in the two pre- 

 ceding orders, but does not leap. Galeruca, Adimonia, 

 Auchenia, Luperus. 



Tortoise-beetles or Cassidites. Larva more obese and 

 obtuse, spiny or radiated round the margin ; the tail 

 furnished with a remarkable forked ap- 

 pendage on which the excrement accumu- 

 lates, forming a kind of umbrella, which 

 protects it in some degree from observa- 

 tion. Inhabits and feeds on vegetables. 

 Pupa changes in the same situations. 

 Imago with moniliform antenna; man- 

 dibles and maxilla 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. 



Hispites. Larva flattened, having thirteen distinct seg- 

 ments, whereof the head and prothorax are somewhat 

 corneous ; fifth to eleventh segment inclusive furnished 

 both above and below with a callous transverse spot, co- 

 vered with minute projections like a rasp : feeds on the 

 parenchyma of the leaves of plants, living entirely between 

 the upper and lower epidermis, causing brown spots to ap- 

 pear in the leaves where the parenchyma 

 has been consumed, and moving about 

 in the cavities with a wriggling motion, 

 and as easily backwards as forwards. 

 Pupa changes in the same situations; 

 very active, moving about in the cavities 

 when disturbed. Imago with moniliform 

 antenna approximate at the base ; head not hidden by the 

 prothorax, but standing out distinctly in front ; prothorax 



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