474 PROCEEDINGS OP THE AMERICAN ACADEMY. 



43. Scliistocerca americana. 



Gryllus americanus Drury, 111. Nat. Hist., I. 128, pi. 49, fig. 2 (1770). 



Acridium americantim Scudd., Bost. Journ. Nat. Hist., VII. 4'6G (1868). 



Cyrtacanthacris americana Walk., Cat. Derm. Salt. Brit. Mus., III. 550 (1870). 



Acridium (Schistocerca) americanum Stai, Rec. Orth., I. GO (1873). 



Schistocerca americana Brun., Bull. Washb. Coll., I. 136 (1885). 



Gryllus succinctus (pars) Linn., Syst. Nat., ed. xii. I. 099 (1707) t. Stal. 



Gryllus rusticus Fabr., Syst. Ent., 292 (1775). 



Acridium rusticum Burm.!, Handb. Ent., II. 633 (1838). 



Gryllus tartaricus Panz., Urury, pi. 49, fig. 2 (1785-88). 



Gryllus serialis Thunb.!, Mem. Acad. St. Pe'tersb., V. 241 (1815), 



Acridium vittatum Palis., Ins. Afr. Amer., 140, pi. 4, fig. 5 (1817). 



Acridium ambiguum Thorn., Ann. Rep. U. S. Geol. Surv. Terr., V. 447 (1872). 



Acridium obscurum Bol. (nee Fabr.), Me'ni. Soc. Zool. France, 1888, 144 (] 



Excepting S. peregrina, which has crossed the ocean and colonized 

 another world, this species of Schistocerca is the most widely distributed 

 of the genus, and merits its name, ranging as it does from North America 

 east of the Great Plains and south of about latitude 40°, through the 

 West Indies, Mexico, and Central America to South America, where it 

 occurs as far as Colombia in the west and Argentina in the east, though 

 the records of its occurrence in South America are few. North of north 

 latitude 40° or thereabouts, sporadic cases of its appearance are recorded, 

 notably in Massachusetts and southern Ontario; these are doubtless 

 accidental visitants, flying from their proper home farther south. 



I have before me specimens from Pennsylvania, Uhler; Maryland, 

 Sept. 19, 30, Oct. 6, Uhler; North Carolina, Holder, Uhler, Shute ; 

 Dingo Bluff, Nov. 15, Parker, Maynard, and Smithville, N. C, Nov. 

 22 ; Georgia, Morrison ; Florida, Norton, Wurderaann ; Jacksonville, 

 April, Maynard, Dummet's Grove, Feb., Maynard, Green Cove Spring, 

 Boardman, F'ort Reed, Comstock, Tallahassee, Glover, Indian River, 

 Palmer, Key West, Maynard, Palmer, Morrison, Burgess, and Logger- 

 head Key, Fla., Mayer; Illinois, Uhler; southern Illinois, Kennicott, 

 Uhler, and Moline, 111., McNeill ; Indiana, Oct. 15, Blatchley (Morse); 

 New Madrid and St. Louis, Mo., Engelmann ; Lincoln, Nebr., May 3 

 (Bruner); Texas, Lincecum, Belfrage * ; Goliad, Dec. 3, Palmer, 

 Dallas, Feb. 20, Mar. 12, May 26, Boll, Bosque Co., July 27, Belfrage, 

 and Carrizo Springs, Tex., Wadgymar (Bruner) ; Gulf coast of Texas, 

 Aaron ; Mexico, Packard (Mus. Comp. Zool.) ; Matamoras, Tamaulipas, 

 Couch, Uhler; Cuernavaca, May 12, Barrett (Bruner), Tepic, Calif. 



* Where it is said to be not rare and " found only in woods, particularly in pine 

 barrens, being never seen in open fields or in suuuner." 



