306 



single example of each of the last two species being seen and only a single 

 pair of Conocephalus riigropleurum. Noteworthy was the entire absence in 

 this marsh of the two most frequent marsh "long-horned" grasshoppers of 

 this region, Conocephalus brevipennis and the typical phase of Orchelimiim 

 nigripes. 



In the herbaceous thickets forming the marginal vegetation of the 

 marsh Orthoptera were not very common, the only species taken there being 

 Melanoplus differentialis and Melanoplus oboatipennis, both of which were 

 only moderately common. In the open clover held surrounding the marsh 

 the only species observed was Melanoplus femur-rubmm. 



15. This was a small lateral ravine which opened into the valley of 

 Indian Creek close to where it empties into the Wabash. It was visited 

 June 28. Orthoptera were very scarce at this time, but on a steep wooded 

 slope where there was much bare ground with scattered growth of the 

 woodland Panieum, P. huachucce, I captured a male Melanoplus fasciuius. 

 The woods here were denser than usual and were cool and shady with only 

 few scattered openings where the direct rays of the sun reached the 

 ground. The soil at this spot is mapped as Miami silt loam. 



16. This includes the east bank of the Wabash and the adjoining bot- 

 toms about 2h miles southeast of Battle Ground examined August oOtb. 

 Ihe river bank here slopes very gently and at the time of my visit was cov- 

 ered next the river with a growth of sedge, apparently Scirpus amerieauiis, 

 and landward of this by Homalocenchrus oryzoides. Above this on higher 

 ground was a fringe of woodland with a dense undergrowth of Muhlen- 

 bergia. Beyond this were the flat cultivated lands of the bottoms. At this 

 point the bottoms are about a quarter of a mile wide. At their outer 

 edge — the edge away from the river — they are characterized by the usual 

 line of high bluffs forming the edge of the neighboring upland. At the base 

 of the bluffs was the usual seepage zone, which at this place was repre- 

 sented by an extensive marsh in which Homalocenchrus oryzoides formed 

 the bulk of the vegetation. Bordering it were the accompanying thickets 

 of tall composites. 



The Orthoptera of the river bank at this place were disappointingly 

 scarce. The only species at all common was Orehelimttin nigripes which 

 was observed only in the cut-grass. A single specimen of Neoconocephalus 

 palustris was taken in the sedge, but it had apparently strayed there from 

 the cut-grass areas. No other species were noted on the river margins 

 On the cultivated parts of the flood plain there were in several places rank 



