ORTHOPTEKA OF INDIANA. 279 



XXXII. Mestobregma Scudder (1876). 



Size small. Body slender, compressed. Disk of vertex with its 

 posterior portion short and broad, the front portion narro\dng rap- 

 idly and sloping strongly downward to form the sides of the frontal 

 costa; the lateral carinre high and sharp, the median carina wanting; 

 the foveolge, in our species, rather prominent, triangular. Frontal 

 costa narrow, sulcate throughout, a little constricted above the 

 ocellus. Antennas about as long as hind femora, the basal joints so 

 depressed as to form one sharp edge. Pronotum moderately con- 

 stricted in the middle, the front margin truncate, the hind margin 

 right-angled, the disk wrinkled, and bearing a number of small, ob- 

 oblique tubercles; the median carina sharp, slightly higher on the 

 prozona, notched twice in front of the middle; the lateral carinas 

 rounded, visible only on the metazona. Lateral lobes of pronotum 

 deeper than long, the front margin almost vertical, the hind one a 

 little concave, the lower margin oblique but straight, the posterior 

 angle thereby enlarged. Tegmina narrow, the apical half membra- 

 naceous and transparent. Inner wings with the basal half yellow. 

 Hind femora slender, reaching tip of abdomen in female, much sur- 

 passing it in male. 



Nine species of the genus occur in the United States, one of which 

 has been taken in Indiana. 



50. Mestobregma ciNCTUM (Thomas). The Ash-brown Locust. 



(Edipodacincta Thorn., 203, 1870, 80; Id., 204, II, 1871, 275; Id., 

 205, 1872, 464; Id, 206, V, 1873, 122; Glov., 62, 1872, Plate 

 XII, Fig. 1.3. 

 Mestobregma cinctum Thorn., 2 1 1 , IX, 1880, 90, 113; Lugg., 84, 1898, 

 164, Fig. 99; Scudd., 188, 1900, 39. 



General color ash gray, or yellowish brown, spotted with fuscous. 

 Face ash gray, with minute dark spots. Occiput and disk of pro- 

 notum darker, with often a yellowish line extending back from eye 

 along the sides of the disk. Lateral lobes of pronotum with traces 

 of alternate lengthwise bars of pale and fuscous, the former the 

 narrower. Tegmina yellowish brown or grayish, often darker in the 

 male, the lower field with two squarish dark spots separated by an 

 oblong whitish spot; the apical half transparent, often with a few 

 small dark spots along the costal margin. Inner wings with the basal 

 third greenish or lemon yellow; a narrow curved fuscous band on 

 middle third; the apical third smoky transparent, with a few fuscous 

 Aots near the tip. Outer face of hind femora ash gray or yellowish 

 with three more or less distinct black spots on the upper margin. 



