58 NATURAL HISTORY OP INSECTS. 



CHAPTER X. 



HOW TO IDENTIFY THE ORDERS OF 



Those insects which, when they first issue from the egg, 

 closely resemble the parents, are always provided with six 

 legs. Those which are furnished with a beak belong to the 

 Order Hemiptera, such as the larvae of the Cabbage-bug (Fig. 

 66, a), and the larva of the Soldier-bug (Fig. 43, b). Those 

 which are provided with jaws belong either to the Orthoptera 

 or the Neuroptera; if aquatic, they belong to the latter Order; 

 but if terrestrial, they belong to Orthoptera, such as the larva 

 of the Earwig (Fig. 41, a). 



Those which are worm-like when they issue from the egg, 

 and are destitute of legs such as those which are commonly 

 called " maggots " or " grubs " belong either to the Order 



Fig. 169. 



Coleoptera, Hymenoptera, or Diptera. If the body is flattened, 

 like the larva of the Broad-necked Prionus (Fig. 169), the 

 larva belongs to the Coleoptera, and is probably the larva of 

 a Long-horned Borer, or of a Saw-horned Borer; if they live 

 in nests stored with dead insects or with pollen, they belong 

 to the Order Hymenoptera; if they have a soft retractile head, 

 of no definite shap^e, they belong to the Order Diptera, as the 

 larva of the Ox Bot-fly (Fig. 170). In the Lepidopterous 

 families Lycsenidse and Bombycidse, a few larvae have the legs, 

 so small as to be scarcely distinguishable; these larvae or 

 caterpillars live exposed upon the leaves of plants and trees. 



Those larvae which are worm-like and provided with six 

 legs, and commonly also called " grubs," as the larva of the 



