SUBFAMILY III. LOCUSTIXJ3. 327 



uncommon. It matures late, young being common until Septem- 

 ber, and the adults even seem relatively soft bodied, and usually 

 discolor to a dull brown in drying. It is very sluggish, relying 

 upon its protective coloration rather than activity, to escape de- 

 struction." 



III. EOTETTIX Scudder, 1897a, 198. (Gr., "eastern" + "grass- 

 hopper.") 



Small or median sized species, having the body slender, elong- 

 ate, feebly compressed ; head short but rather large and promi- 

 nent; vertex narrow between the eyes, the fastigium slightly de- 

 clivent, broadening and more or less sulcate or concave in front 

 of them ; face slightly oblique ; frontal costa about as wide as the 

 interocular space, shallowly sulcate, with sides usually feebly con- 

 verging below the antennae, slightly narrowed near vertex; an- 

 tenna feebly flattened, slightly, female, or distinctly, male, longer 

 than head and pronotuni together; eyes large, prominent, longer 

 than the cheek below them ; pronotuni with disk feebly tectiform, 

 prozoua smooth, metazona finely rugose, its hind margin broadly 

 obtuse-angulate, median carina distinct, rather sharp ; tegmina 

 less than half the length of abdomen, broad, their inner margins 

 usually meeting; hind femora reaching tip of abdomen, female, 

 distinctly surpassing it, male; hind tibia? with 11 12 spines on 

 outer margin; abdomen of male compressed ; furcula distinct; 

 cerci styliform. Three species 51 are known, all from the Southern 

 Atlantic States. 



KEY TO SPECIES OF EOTETTIX. 



a. Hind tibiae red; tegmina oval or ovate-lanceolate, their inner mar- 

 gins meeting or feebly overlapping. 



l>. Tegmina ovate-lanceolate, as long as or longer than pronotum, 



their tips acute or obtusely-angulate; apex of supra-anal plate 



of male bluntly rounded; larger, length of body, male 18 or 



more mm. 141. SIGXATUS. 



bb. Tegmina oval, shorter than pronotum, their tips rounded; apex 



of supra-anal plate acutely rounded; smaller, length of body, 



male, not over 16 mm. 142. PALUSTRIS. 



GO. Hind tibiae greenish-yellow; tegmina subcircular or broadly ovate. 



shorter than pronotum, their inner edges not attingent; still 



smaller, length of body, male 10 12 mm. 143. rrsuxrs. 



141. EOTETTIX SIGNATUS Scudder, 1897, 54. 



Size medium, robust for the genus, the females distinctly the larger. 

 Pale bluish-green fading to greenish-yellow, shining; face and vertex 

 marked with fuscous; side of head with a narrow, postocular shining black 



51 The Eotcttix davisi and E. quercicola Hebard (1918, 153, 156) have been placed in 

 the Scuddcri Group of the genus Mclanofliis. 



