68 



BRANCH ARTHROPODA. 



FIG. 111. 



Fio. 112. 



Bldt' to, o ri en' ta Its. 

 Cockroach. 



ORDER ORTHOPTERA (or th6p'te 



The Orthopterous (straight-winged) Insects have an 

 incomplete metamorphosis ; the fore 

 wings are more or less rigid, reticulate, 

 and parchment-like, while the large hind 

 wings, having the veins straight, can be 

 folded like a fan. As a general rule, the 

 representatives are terrestrial and active 

 from the time they leave the egg. 



Few insects have a wider range of 

 distribution than do 

 the omnivorous 

 Cockroaches. They 

 are found in nearly 

 every climate. Not 

 only do they inhabit our houses, but 

 their flat bodies enable them to crawl 

 under the bark of trees and beneath 

 stones. They are particularly abun- 

 dant on board sailing-vessels. 



The Katydids are of much more 

 pleasing appearance. Several species inhabit our trees in 

 summer. By rasping their anterior wings, the one 

 over the other, they produce the call by which they 



are known. This 

 call may be heard 

 not only at night, 

 but also during 

 quiet summer 

 afternoons. 



Cotwceph'a lits en' si ger. Grasshopper, or Quaker. 



The Grasshop- 

 pers, which are provided with long antennae, resemble 



Cyr ta phyl' lus con cd' vus. 

 Katydid. (Reduced.) 



