60 THE CANADIAN ENTOMOLOGIST. 



north of Miller's, Lake County, Indiana, and within one-half mile of the 

 shore of Lake Michigan. On the following day a single pair were taken 

 from a similar locality near ToUeston, in the same county, and about 

 four miles from the lake, but still within the sand-covered area. It was 

 usually found clinging to the stems of the tall rushes and grasses common 

 in such locations, and when disturbed the males used the wings in a 

 noiseless flight, while the females depended upon their leaping powers to 

 escape. When closely followed, they would attempt to hide by burrow- 

 ing in the fallen grass. 



The form is more closely allied to P. atlantica Scudder, than to 

 either of the other two known species of the genus, but its smaller size, 

 longer cerci, and the different shape of the male furcula at once dis- 

 tinguish it. I take pleasure in naming it in honour of Mr. S. H. Scudder, 

 who in the past has rendered me much aid in my study of Acrididse, and 

 who has done far more than any other man towards putting the study of 

 North American Orthoptera on a substantial basis. 



Tettigin^. 

 7. Tettigidea armata Morse. 



Tettigidea armata Morse, Journ. N. Y. Ent. Soc, III., 1895, 107. 



This species was described from specimens collected by me in Vigo 

 County. It was formerly confounded with T. lateralis Say, but is dis- 

 tinguished by having the anterior margin of the pronotum produced in a 

 sharply pointed cusp, instead of being rounded or obtusely angulate, and 

 in having the dorsum of pronotum strongly rugulose, with the median 

 carina sharp and distinct. One pair, m coitii, were taken June 20, 1894, 

 from the wooded margin of a large pond in the lowlands of the Wabash 

 River. It has also been taken about the margin of a lake near Waterloo, 

 DeKalb County, and, according to Morse, near Dallas, Texas. 

 7a. Tettigidea armata depressa Morse. 



T. armata depressa Morse, loc. cit-, 107. 



This differs from the above in that the pronotum only reaches the 

 tip of the hind femora instead of much surpassing them. A single 

 female in my collection from Vigo County served as one of Morse's 

 types, the others being from Florida and Louisiana. According to Han- 

 cock (Trans. Am. Ent. Soc, XXIII. , 1896, 242), Tettigidea acuta 

 Morse, occurs at Chicago and Riverside, Illinois. It is therefore, doubt- 

 less, a resident of Indiana. 



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