444 



ARTICULATES I INSECTS. 



Cockroach, B. orientalis, 

 Linn. 



Fig- 34i- 



BLATTARI^:, Latr., OR COCKROACH FAMILY. This 

 Fig. 34 o. Family contains orthopterous insects 



which have the body oval, flattened, 

 the hind extremity of the abdomen 

 furnished with conical articulated 

 appendages, and the- antennae long 

 and many-jointed. Cockroaches are 

 nocturnal, and are found not only in 

 forests, but some species infest kitch- 

 ens, store-rooms, and closets, devour- 

 ing all kinds of provisions, and even 

 fabrics. The Genus Blatta contains 

 the species, of which we have several 

 that are indigenous, and one, B. orien- 

 talis, Linn., which originated in Asia. 

 PHASMIDA, Leach, OR WALKING-STICK FAMILY. This 

 Family comprises orthoptera which 

 are at once distinguished by their 

 very close resemblance to vegetable 

 structures. Some appear like dry 

 twigs ; others have wings which al- 

 most exactly resemble green or dry 

 leaves. They are sluggish in their 

 movements, and are found princi- 

 pally in warm regions, though sev- 

 eral species belong to temperate 

 climes. Three or more are found 

 in North America. Some of the 

 tropical species are very large, even 

 a foot in length. 



The Genus Diaphomera contains 

 D. femorata, Sctidd., four inches 

 long, which is one of our most com- 

 mon species. It is the Spectrum 



Walking-stick, D . femorata, femOratUIH of Say. 

 Scudd. Reduced one half. 



