1 5 University oj Michigan 



spread over the ground and hang in tangled masses from the 

 shrubbery. 



Although the conditions grouped under this heading are 

 quite diverse in character, they appear to form a natural hab- 

 itat unit so far as the Orthoptera are concerned. In this hab- 

 itat the following species were found : 



Chortippus curtipennis* Scudderia curvicauda curvicauda* 



Melanoplus gracilis* Scudderia furcata furcata* 



Melanoplus walshiif Amblycorypha oblongifolia* 



Melanoplus mexicanus atlanis Neoconocephalus ensiger 

 Melanoplus fcmur-rubrum femur- Orchelimum vulgare* 



ruhriim* Orchclimjivi gladiator* 



Melanoplus differentialis Conocephalus brevipennis* 



Melanoplus bivittatus* Nemobius fasciatus fasciatus 



Scudderia texensis* Occanthus quadripunctatus 



Scudderia pisfillata* Occanthus nigricornis* 



Upland thicket and scrub habitat. The typical example of 

 this habitat is the thicket which normally borders the upland 

 forest wherever it gives place to grassland. The plant species 

 composing it vary from one locality to another ; young trees, 

 hawthorn, sumac, brambles, many species of shrubs and 

 bushes, and grape and other vines are found here, and among 

 these in the more open parts grow tall composites, grasses, 

 and other herbaceous plants. This forest margin thicket is 

 absent over much of the area in which it should occur in this 

 region, chiefly on account of its destruction by stock grazing. 

 On the Warren Woods Preserve it is absent or greatly modi- 

 fied in all portions accessible to the cattle and horses pastured 

 there, and similar conditions prevail throughout the region. 

 On the other hand, as noted under the discussion of the low- 

 land thicket, the shrubby growths of roadsides and fence-rows 

 may be considered an extension of this habitat, at least as 

 regards most of the insect inhabitants. 



Differing chiefly from the forest margin thicket in extent 



