16 THE ORDERS OF INSECTS. 



day. Their wings are ample, but are perfectly concealed undei 

 the short wing-covers when not in use. They are very destruc- 

 tive to fruit and flowers a hollow apple, or the flowers of the 

 dahlia, sun-flower, etc., often harbouring a considerable number. 

 The female is said to brood over her young like a hen. 



The Earwig derives its name from its occasionally entering 

 the ear a fact which has been denied, but which is indisputable. 

 The insect may be immediately dislodged from the ear by 

 pouring oil into it. 



Mole Cricket (Gryllotalpa. Vulgaris), natural siz e. 



The Cockroaches are also nocturnal insects. The commonest 

 species (Blatta Orientalis] is believed to be an importation from 

 abroad, and is generally known as the Black Beetle. This 

 description would apply well enough to Blaps ; but as Blatta 

 U not a beetle, nor even black (being of a reddish brown), the 



