ZOOLOGT. 



ORDER II. 



^ * HEMIPTEEA, 



The individuals of this order are all furnished with wing 

 covers of a softer texture, than those of the preceding ; 

 these covers do not meet in a direct line, as in the Coleop- 

 terae, but the base of the left wing covers the inner margin 

 of the right ; in some, the wings nearly cross at the tips ; 

 the mouth is either situated on the breast, or inclioing 

 towards it. 



1. Blalta, Cockroach. Head inflected; antennae seta- 

 ceous, and entire ; plate 3, fig. 23 ; or setaceous and 

 jointed, plate 3, fig. 24; wings and wing'Covers flat^ 

 smooth, subcoriaceoBs ; thorax flattish, orbicular, mar- 

 gined ; feet formed for running ; abdomen terminating 

 in two or four spines. 



Many of this genus are exceedingly injurious, devouring 

 most kinds of provisions, paper, leather, and vegetable 

 substances ; they are generally nocturnal inseftts, and 

 are found in great abundance in bake-houses, and other 

 warm places. They are all killed without any external 

 injury, by emersion in boiling water. 



5. Mantis, Head unsteady ; mouth furnished "with Jaws and 

 feelers ; antennae setaceous ; thorax linear ; wings 

 four, membranaceous, convoluted ; the lower pair 

 plaited ; fore-legs compressed, serrated beneath ; 



