294 REPORT OF STATE GEOLOGIST. 



Measurements: Length of body, male, 25 mm., female, 42 mm.; 

 of antennae, male, 10 mm., female, 11 mm.; of pronotum, male, 7 

 mm., female, 9.5 mm.; of tegmina, male, 22 mm., female, 27 mm.; 

 of hind femora, male, 16 mm., female, 19 mm. 



This is a locust of southern range, which in Indiana has been taken 

 only in Crawford County. A single female was secured May 10, 

 1899. This was probably a migrant, as this is a very early date for 

 eggs hatched in spring to mature, and it is not known that the species 

 winters in the nymph stage. Other specimens were taken in June 

 and July, 1902. It frequents old fields and roadsides on the crests 

 of the higher hills near Wyandotte, and is probably to be found in 

 similar localities in the southern third of the State. When flushed 

 they fly long distances and often alight on the limbs of trees or fence 

 posts, around which they dodge, and from which they may often be 

 taken with the hand. 



Thomas has taken cUunnifca in southern Illinois, and Scudder says 

 that it "is a common southern species, occurring in the United 

 States east of the Great Plains, from Pennsylvania, Indiana, Illinois 

 and Arkansas to the Gulf." He gives no Indiana locality. In 1899 I 

 found it abundant at Ormond, Florida, on March 11th and later. 



57. SoHiSTOCERCA ALUTACEA (Harris). The Leather- colored Locust. 



Acridium alutnceum Harr., 7 1, 1841, 139; Id., 7 2, 186^ 173; Scudd., 

 14 1, VII, 1862, 466; Rathv., 109, 1862, 384, Fig. 25; Glov., 

 62, 1872, Plate VHI, Fig. 13; Plate X, Fig. 13; Thorn., 206, 

 V, 1873, 171; Comst., 4 1,1, 1888, 106; Fern., 53, 1888, 30; 

 Bl., 4, XXm, 1891, 79; Beut., 3, YI, 1894, 304, Plate IX, 

 Fig. 2. 



Schistocerca alutacea Brun., 29, in, 1893, 26; Lugg., 84, 1898, 172; 

 Morse, 100, Vlll, 1898, 255, 270, Plate 7, Fig. 32; Scudd., 

 184, XXXIV, 1899, 445, 464; Id., 188, 1900, 47. 



Acridium emarginntum Dodge, 44, IV, 1872, 15; Scudd., 14 7, 1872, 

 250; Thorn., 206, V, 1873, 172; Id., 2 1 1 , IX, 1880, 91, 128. 



SchiHtoccrca amarginata Bruu., 29, III, 1893, 26; Id., 33, H, 1895, 7, 

 Fig. 46; Lugg., 84, 1898, 173, Fig. 104. 



Size medium, the female much the larger, with more robust body. 

 Vertex rather prominent, narrow, the disk sub-rhomboidal, but little 

 depressed, the lateral carinse low, distinct only on front half. 

 Frontal costa narrow, sulcate below the ocellus. Antennae of male 

 one and a half times as long as head and pronotum together, 

 the joints a little flattened. Disk of pronotum flat on metazona, 

 the sides higher and sloping on prozona, the hind margin broadly 

 obtuse angled; the surface densely punctate; the median carina low 

 but distinct. Prosternal spine large, cylindrical, the apex rounded. 



