Occasional Papers of the Museum of Zoology 27 



Amblycorypha ohlongifoUa Conoccphalus Jiigroplciirus* 



OrchcUmum gladiator* Nemobius fasciatus fasciatus* 



Orchclimum nigripes Nemobius carolimis carolinus 



Conoccphalus fasciatus fasciatus* Occanthus quadripunctatus 



Conoccphalus brcvipennis* Occanthus nigricornis 



Btiftonbush sivarnp habitat. A few buttonbush swamps of 

 moderate size are found in the flood-plain of the Gahen River 

 on and near the Warren Woods Preserve. In the nnpastiired 

 flood-plain the swamp is surrounded by the flood-plain forest, 

 and has not changed at all from natural conditions. Here the 

 buttonbush {Cephalanthiis occidcntalis L.) is practically the 

 only plant present ; it grows in a close tangled thicket from 

 five to ten feet high. The ground beneath is bare, soft muck, 

 with no vegetation except where here and there a rotting log 

 lies on the surface, offering a foothold for mosses and an 

 occasional fern. The only Orthopteran taken here is Orchdi- 

 mum nigripes Scudder, found stridulating among the leaves 

 of a tall buttonbush. 



In the flood-plain south of the river is a large swamp, from 

 which the forest has been cleared away on several sides, and 

 the accessible margins of which have been heavily pastured. 

 Here Orchelimum nigripes Scudder and Melanoplus bivittatus 

 (Say) were taken among the branches of the shrubbery, and 

 Acrydium arenosum aiigustuiii Hancock from the mucky mai- 

 gin of a pool under the shade of the bushes at the edge of the 

 swamp. 



Artificial Habitats 



Cultivated Held and orchard habitat. This is a grouping of 

 a series of artificial habitats for the sake of convenience, and 

 not a natural division. Many of the conditions comprised 

 under this heading could no doubt be classified under one or 

 another of the preceding habitat divisions, such as bare ground, 

 grassland, etc. However, since detailed notes were not kept 



