1914.] NATURAL SCIENCES OF PHILADELPHIA. 469 



has become covered with a low open bUieberry scrub, numerous 

 additional species are of frecjuent occurrence, such as Melanoplus 

 luridus, SpharMgemon bolli, OrphuMla pelidna, Hippisciis phoenicop- 

 terus, Dissosteira Carolina, Melanoplus fasciatus, and M. impudicus. 

 In higher and denser scrub, such as is formed by a mixture of blue- 

 berry bushes and oak saplings, the more strictly arenicolous types 

 become infrequent, while sylvan types become dominant. Among 

 these we may mention as especially frequent the following : Melano- 

 plus luridus, Spharagemon bolli, Schistocerca ruhiginosa, Melanoplus 

 impudicus, Melanoplus scudderi, Melanoplus fasciatus, Scudderia 

 curvicauda and Scudderia Jurcaia. The typical Sand Barrens faunule, 

 taken as a whole, consists of the following species : 



OrphuleUa pelidna Melanoplus scudderi 

 Arphia sulphur ea " fasciatus 



Hippiscus phoenicopferus " tribulus 



Dissosteira Carolina " impudicus 



Spharagemon bolli " luridus 



" wyomingianum " femoratus 



Psinidia fenestralis Scudderia curvicauda 

 Scirtetica marmorata '' furcata 



Schistocerca datnnijica Amblycorypha oblongifolia 



" rubiginosa " rotundifolia 



H esperotettix brevipennis Microcentrum sp. 



Belonging to this faunule, but usually rare and local in distribu- 

 tion, are the following: 



Eritettix carinatus Melanoplus stonei 

 Trimerotropis maritima " punctulatus 



Dendrotettix quercus Orchelimufn minor 



Melanoplus minor Xiphidium brevipenne 



In the more extensive clearings, such, for example, as the fire- 

 breaks along the railroads, where the scrub growth is short and quite 

 open with considerable grassy areas intermixed, a campestral-like 

 modification of the Sand Barren faunule takes place, characterized 

 by the presence of large numbers of species typical of the Coastal 

 District. The more abundant of these apparently secondary species 

 are Melanoplus atlanis, Arphia xanthoptera, Chortophaga viridifasciata 

 and Melanoplus femoratus. AVith these are the usual typical Pine 

 Barren species. 



The Peat Bog faunule of the Pine Barrens is usually typified by 

 the following species of Orthoptera: Schistocerca alutacea, Paroxya 

 scudderi, Orchelimum glaberrimum, erythrocephalum and pulchellum. 

 As rare or occasional constituents we may mention Chlcealtis conspersa, 



