278 FAMILY VI. ACRIDID.E. THE LOCUSTS. 



locally between June 24 and October, its stridulation being "a 

 rapid and rather loud rattling sound resembling that of Arphia 

 sitlplntrea." Morse (1907,37) says that: "It is one of the few 

 sylvan geophilons locusts, its distribution coinciding with that of 

 dry woodlands. In the Northern States it frequents old sandy 

 fields as well as the more open woods and forest paths and mar- 

 gins. It is widely and generally distributed in suitable localities 

 throughout its range, never becoming abundant even locally." 



Individuals of 8. Itolli, like those of /). Carolina and other Oedi- 

 pods, have, in late summer, the peculiar habit of sustaining them- 

 selves in the air, about three feet above the ground, for several 

 minutes. While poising in this manner above one spot, they make 

 a dry, rustling note, which is perhaps a call to some nearby mem- 

 ber of the opposite sex. The 8. balteatnm Scudder (1875a, 469) is 

 a synonym of 8. bolli. 



119. SPIIARAGEMON CREPITANS (Saussure), 1884, 140. Crepitating Locust. 



This form was separated by Saussure as a variety of bolli, his brief 

 differential diagnosis, freely translated, being as follows: "More slender: 

 crest of pronotum lower, scarcely arcuate, dorsum (of pronotum) densely 

 granulate. Wings narrower, the apex hyaline; humeral field narrower, 

 with apex subparabolic, the fuscous fascia of disk narrower. Hind femora 

 more slender, their lower margin less dilated. Length of body, 9, 36; 

 tegmina, 36 mm." 



8. c-repitans was placed as a distinct species by Morse (1895a, 

 290) and I believe justly so. The two forms can be readily dis- 

 tinguished by the characters given in the key; R. & H. (191G, 185) 

 stating that numerous specimens show clearly that "the caudal 

 tibia* are never as highly colored as in 8. bolli. and are in the ma- 

 jority of cases cinnamon-buff." The specimens at hand show that 

 the median fuscous band of wing is wider than in Itolli, not nar- 

 rower as stated by Saussure ; and that the disk of pronotum does 

 not appreciably differ in its granulation or rugoseness. However, 

 the front margin of prozona is more distinctly angulate and the 

 genera] coloration more uniform. 



Saussure's type of crepi tents, evidently a unique female, was 

 from Georgia, and the species is known only from that State and 

 Florida. In Florida it has been recorded by R. & H. (loc. cit.) 

 from Jacksonville, Carrabelle, Cedar Keys and Key West, they 

 stating that it has never been found far inland from the ocean. 

 However, specimens in the Gainesville collection were "taken 

 July 28, on a dry slope in an open field near a stream, about a mile 

 west of the University." (Watson.] At Cumberland Island, Ga., 

 it was found by R. & H. to be "abundant on the sandy soil of a 



