250 BEPORT OF STATE GEOLOGIST. 



Three species arc known froni the United States, one of which 

 occurs in Indiana. 



37. Mecostethus lineatus (Scudder). 



Amipicra lineata Scudd., 14 1, VII, 18(52, 462; Id., 142, 11, 1868, 118 



(song of); Id., 143, XI, 1868, 313 (note of, set to music); 



Smith, 1 19, 1872, 381; McN., 88, Yl, 1891, 66. 

 Stetheophyma lineata Thorn., 206, V, 1873, 98; Id., 2 11, 1880, 104; 



Glov., 62, 1874, Plate XVIH, Fig. 9; Fern., 5 3, 1888, 38. 

 Mecostethm lineatus Morse, 9 8, VII, 1896, 327, 444, Figs. 13-13b; McN., 



8 9, 1897, 254, Figs. 22a, 22b; Bl., 15, XXX, 1898, 55; Scudd., 



188, 1900, 29. 



General color, dark brown. A narrow yellowish line extends from 

 the upper border of the eye to the pronotum, bordered below by an 

 indistinct dark band which extends along the upper half of lateral 



Fig. 48. Mecostethus lineatus iScndd.). (After McNeill.) 



lobes of the pronotum. The tegmina with a distinct pale or yellow- 

 ish streak two-thirds their length, along the scapular area. Hind 

 femora with the outer face yellowish or reddish brown, darker above, 

 the lower face either yellowish or bright coral red, the knees black. 

 Hind tibise yellowish, annulate with paler near their base, the spines 

 black. The females usually much darker than the males with the 

 yellow line on head and tegmina often obscure. The structural 

 characters are given above under the genus heading. 



Measurements: Length of body, male, 26 mm., female, 35 mm.; 

 of antennas, male, 11.5 mm., female, 10.5 mm.; of tegmina, male, 25 

 mm., female, 30 mm.; of hind femora, male, 17 mm., female, 20 mm. 



This large and handsoiiic locust occurs in isolated areas in the 

 northern third of the State, having been taken in Fulton, Lake, 

 Starke, Marshall, Kosciusko and Steuben counties. It is fouiid only 

 in low boggy meadows bordering lakes or tamarack swamps. The 

 males seem to far outnumber the females, and are much more wild 

 and active, taking to flight when a person is a dozen yards distant. 

 They use the wings only in escaping, flying swiftly and noiselessly for 

 50 to 100 feet and alighting on the stems of the tall grasses and 



