1875.1 479 [Scudder. 



Disc of pronotum nearly flat, the median carina abrupt but not 

 greatly elevated, cut into two equal halves by a distinct though slight 

 notch; lateral carinas distinct but broken, very slightly arcuate; pos- 

 terior margin of the pronotum forming a rather sharply marked right 

 angle; tegmina rather broad and short, but little surpassing the tip 

 of the abdomen, the basal half of the costal margin sinuate, the apex 

 broadly rounded, scarcely obliquely docked; wings short and broad, 

 pellucid or nearly pellucid, with a post-median costal stigma and more 

 or less duskiness near the outer border, the principal veins of the 

 front area broader than long. Type : CEdipoda sordida Burm. 



The flatter disc of the pronotum, with its slight but abrupt me- 

 dian carina and almost equally distinct lateral carinas distinguish 

 this at once from Tragocephala, with which Dr. Stal unites it. As he 

 has pointed out, the intercalary vein of the tegmina approaches the 

 ulnar vein, instead of lying midway between it and the radial vein, 

 as in Tragocephala. 



Synopsis of the species. 



1. Wings most deeply fuliginous at the apex. . . . sordidus. 



1. Wings most deeply fuliginous next the middle of the outer 



border 2. 



2. Summit of head with a faint median carina. . . . costalis. 

 2. Summit of head with a distinct, but slight, median carina, parvus. 



1. Encoptolophus sordidus. 



CEdipoda sordida Burm., Handb. d. Ent., n, 643; Scudd., Bost. 

 Journ. Nat. Hist., vn, 473; Walk., Cat. Derm. Brit. Mus., iv, 732; 

 Thorn., Syn. Acrid. N. Amer., 116 ; Glov., 111. Orth., pi. 10, fig. 11. 



Acridium (CEdipoda) sordidum De Haan, Bijdr. Kenn. Orth., 143. 



Tragocephala sordida Stal, Recens. Orth., i, 119 ; Scudd., Geol. N. 

 Hampsh., i, 373. 



Locusta periscelid'is Say. Ms.; Harr., Cat. Ins. Mass., 56. 



Locusta nebulosa Harr., Ins., Inj. Veg., 1st ed., 146 ; 2d ed., 157 ; 

 3d ed., 181 ; Emm., Agric. N. York, v, 146, pi. 9, fig. 7. 



CEdipoda nebulosa Erichs., Arch. f. Nat., n, 230; Uhl., in Harr. Ins. 

 Inj. Veg., 3d ed., 181. 



This insect is found from middle N. England to Maryland and 

 Tennessee and, more rarely, to N. Florida ; and westward to Ne- 

 braska, Iowa and Minnesota. 



