OETHOPTEEA OF INDIANA. 329 



ually, but not always, only a single cluster of eggs is deposited by 

 each female. Frequently there are two, and in extreme eases per- 

 haps even three, of these clusters deposited by a single female." 



75. Melanoplus bivittatus (Say). The Yellow-striped Locust. 



Gryllm bivittatus Say, 138, IV, 1825, 308; Id., 139, H, 1859, 237. 



Caloptenus hivittaim Uhl., in Say, 139, II, 1859, 238; Pack., 104, 

 1869, 570; Glov., 62, 1872, Plate I, Fig. 16; Thorn., 206, V, 

 1873, 166; Id., 2 11, IX, 1880, 91, 96, 126; Riley, 119, 1877, 89, 

 194, Fig. 38; Id., 2 14, I, 1878, 220, 226, 327, 459, Fig. Ill; Id., 

 122, II, 1884, 194, Fig. 272; Id., 127, XXV, 1891, 31, Fig. 9. 



Melanoplm bivittatus Scudd., 148, I, 1874, 376; Id., 179, XXXVI, 



1897, 31, 35; Id., 18 1. 1897, 138, 363, Plate XXIV, Fig. 5; Id., 

 188, 1900, 54; Bl., 4, XXIH, 1891, 99; Id., 1 !, XXVE, 1894, 



244; Id., 16, 1899, 244, Fig. 70; Brun., 2 8, XXVLQ, 1893, 19, 

 Fig. 8; Id., 30, 1893, 461, Figs. 104-105; Id., 3 1, 1894, 163, 

 205, Fig. 71; Id. 35, 1899, 133, Fig. 80; Id., 36, 1899, 247, 270, 

 Fig. 50; Bent., 3, VI, 1894, 308, Plate VEI, Fig. 8; Liigg., 84, 



1898, 206, Figs. 133-135. 



Caloptenus femoratus Burna. , 40, 11, 1838, 638. 



Melanoplus femomt us Scudd., 163, XIX, 1878, 284, 288; Id., 16 1, VI, 

 1878, 43, 47; Id., 179, 1897, XXX\T:, 31, 35; Id., 18 1, 1897, 

 138, 360, Plate XXIV, Fig. 4; Id., 188, 1900, 58; Oomst., 4 1, 

 1888, 108, 110, Fig. 99; Fern., 53, 1888, 31, Fig. 13; Morse, 

 100, Vni, 1898, 257, 258, 294, Plate 7, Fig. 45. 



Acridium Jtavovittatum Harr., 7 1, 1841, 140; Id., 7 2, 1862, 173; Emm., 

 49, V, 1854, 147; Rathv., 109, 1862, 384. 



Size, large. Vertex gently swollen, but little elevated above the 

 pronotimi; the interspace between the eyes about three times the 

 width of first antennal joint; the front half feebly sloping, broadly 

 and shallowly sulcate. Frontal costa broad, sub-equal, feebly sul- 

 cate at and below the ocellus. Antennae about as long (male) or 

 two-thirds as long (female) as the hind femora. Pronotum enlarging 

 feebly on posterior half, more distinctly in female, the disk nearly 

 flat, the hind margin broadly rounded; the median carina low but 

 visible throughout; the prozona fully a half (male) or about one- 

 third (female) longer than the closely and delicately punctate meta- 

 zona. Tegmina reaching or a little surpassing the hind femora, 

 sometimes a little shorter in the female, tapering regularly and grad- 

 ually from base to tip. Hind femora rather long and moderately 

 stout. Extremity of male abdomen but little upcurved; the cerci very 

 stout, large and broad, the basal half narrowing gently, and beyond 

 the middle expanding into two lobes; an upper, ovate, compressed 

 one, nearly as long as the basal half, directed upward and backward; 

 and a lower, short triangular one, broader than long, directed down- 

 ward. Furcula consisting of a pair of short, much swollen, triangu- 



51-Geol. 



