. Bulletin. Natural history; Natural history. 188 ILLINOIS NATURAL HISTORY SURVEY BULLETIN XX:II1 SCHISTOCERCA—KEY TO SPECIES CONT D Cerci of male not narrowing distad, fig. 49. Pronotiil disk moderately to de- cidedly tectate 2 Cleft of male subgenital plate very narrow, fig. 59. Smaller. Form short and stocky. Antennae of male not over one-fifth longer than head and pronotum. Usually almost uniform light brown damnifica damnifica, p. 188 Cleft of male subgenital plate not as narrow, fig. 60. Larger. Form more elongate and graceful. Antennae of male more elongate 3 Lateral fields of tegmina u
. Bulletin. Natural history; Natural history. 188 ILLINOIS NATURAL HISTORY SURVEY BULLETIN XX:II1 SCHISTOCERCA—KEY TO SPECIES CONT D Cerci of male not narrowing distad, fig. 49. Pronotiil disk moderately to de- cidedly tectate 2 Cleft of male subgenital plate very narrow, fig. 59. Smaller. Form short and stocky. Antennae of male not over one-fifth longer than head and pronotum. Usually almost uniform light brown damnifica damnifica, p. 188 Cleft of male subgenital plate not as narrow, fig. 60. Larger. Form more elongate and graceful. Antennae of male more elongate 3 Lateral fields of tegmina usually mottled, when clear never deep purplish brown. Caudal tibiae reddish yellow or pale brown. Lateral projections of apex of male subgenital plate of moderate size. Medium large alutacea, p. 189 Lateral fields of tegmina clear deep purplish brown. Caudal tibiae blackish purple. Lateral projections of apex of male subgenital plate very large. Large obscura, p. 189. Fig. 157.—The long winged grasshopper Schistocerca americana americana fDrury). (.After Thomas, 9th Report State Knt. 111.) X 1. S. damnifica damnifica (Saussure).—Clarksville is a northern limital point, the species being confined to southern Illinois. Clarksville: June 14, 1933, Ic?', Prison and Ross. Albion: Aug. 22, 1887, 19, Weed. Shawneetown: Oct. 12, 1932, Icf, Frison and Ross. CartervUle: May 11, 1887, 19, Ward. Herod: Sept. 4, 1932, Ross and Horsfall. Eichom: Apr. 20, 1932, 19, Ross and Mohr. Parker: Apr. 17, 1914, May 23, 1923 and June 12, 1907, Sc^. Alto Pass: Apr. 17, 1927, IcT, Frison. Anna: Apr. 20, 1886, 19, Weed. Golconda: Oct. 13, 1932, Icf, 19, Frison and Ross. S. americana americana (Drury).—We had believed that this species would not be found north of central Illinois except during its fall migrations, when individuals are known to fly far north of the area of continuous distribution, but a female was secured at Chicago, a northern limit, by G. C. Thompson in Grant Park on May 3, 1922.
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