468 PROCEEDINGS OF THE ACADEMY OF [June, 



Other species regularly found in the Pine Barrens, but either 

 scarce throughout or of only local frequency, include the following: 



Syrhula admirahilis Amblycorypha rotundijolia 

 Eritettix carinatus " uhleri 



Chloealtis conspersa Conocephalus rohustus 



Hippiscus rugosus (?) Orchelimum glaherrimum 

 Hesperotettix hrevipennis " spmulosum 



Dendrotettix quercus " pulchellum 



Melanoplus tribulus " minor 



" feynur-ruhrum^^ Xiphidium brevipenne 

 " i7npudicus " strictum 



" stonei " saltans 



" punctulatus Atlanticus dorsalis 

 Scudderia texensis " pachymerus 



The species in the following list appear from available records to 

 be of only very infrequent or exceptional occurrence in the Pine 

 Barrens, and are evidently stragglers or invaders from the Delaware 

 Valley, Coastal or Cape May Districts. Certain of these forms, 

 however, may occur in fair numbers in places much modified by 

 human angency. 



Mermiria vigilans Schistocerca americana 



Orphulella speciosa ' Melanoplus minor 



Clinocephalus elegaris Paroxya floridiana 



Dichromorpha viridis Conocephalus triops 

 Stenohothrus curtipennis " exiliscanorus 



Mecostethus lineatus " lyristes 



Encoptolophus sordidus " caudellianus 



Trimerotropis maritima Xiphidium fasciatum 



As previously mentioned, we distinguish three types of Pine 

 Barren habitats, each of which is characterized by certain well- 

 defined peculiarities of moisture, substratum and flora. Correlated 

 with these we have equally well-marked differences in the Orthopteran 

 faunule of each habitat. 



The Orthopteran faunule of the Sand Barrens is a markedly 

 xerophilous one, this being especially true of those forms that inhabit 

 bare, open stretches of clear, white sand. In such places the dominant 

 species are the geophilous arenicoles, Scirtetica marmoraia and 

 Psinidia fenestralis, while associated with them are usually smaller, 

 but considerable, numbers of Spharagemon wyomingianum and very 

 rarely a few examples of Trimerotropis maritima. Where the sand 



1' Abundant locally in farming and residential districts, but scarce in typical 

 Pine Barrens. 



