Male. Medium size (TL = 39-44 mm). Integument without long setae. Median carina of pronotum distinct and slightly raised, with distinct sulci. Metazona with numerous small granules. Hind angle of pronotum slightly angular. Fore and middle femur highly inflated. Epiproct with a pair of tubercles (Fig. 16). Cerci quadrate, length about the same as width, slightly inflated in the middle, distal tip bilobed (Fig. 18). Apical lobes of subgenital plate not outwardly flared, notch U-shaped (Fig. 17). Phallus: Cingulum, surfaces or rami not infolded and sinuate, thus making “basal eminence” appear hourglass-shaped and very broad in the middle (Figs. 40 and 41). Endophallus, basal valves laterally semicircular, valves of cingulum straight, slightly protruding more than apical valves of aedeagus (Fig. 42). Epiphallus, distance between lophi as long as the length of base of a lophus (Fig. 43). Lophi inflated triangular. Color: Mostly light olive green, occasionally lemon yellow or slight brown. Two forms can be distinguished based on the presence of dorsal stripe. Unstriped form: Head olive green to yellow with dark olive green to brown subocular stripe. No pair of stripes between eyes, and no dorsal longitudinal stripe on head and pronotum. Lateral lobe of pronoza without marking. Metazona sometimes with small granules. Antennae yellow. No pattern on epimeron. Tegmina light olive green to yellow without any pattern. Tegminal veins light lemon-yellow to brown. Hind wing with slightly yellow tinge. Posterior margin of abdominal tergites without a row of black dots. Dorsal and ventral hind femur yellow to olive green. Medial area white without any pattern. Hind femur without dorsal bands. Carinula without pattern (Fig. 54). Hind tibia pink, orange to red, with tibial spines yellow with black tip. Striped form: Head light olive green to yellow with faint dark olive green to brown subocular stripes. A pair of olive green stripes between eyes from upper half of frontal ridge to occiput. Head, pronotum, and tegmina with a yellow dorsal longitudinal stripe. Lateral lobe of prozona with no apparent marking, and lower half of prozona and entire metazona with yellow granules. Second epimeron sometimes with yellow marking. Antennae, tegmina, hind wing, abdomen, and hind femur same as unstriped form.

Female. Much larger than (TL = 53-63 mm). Median carina of pronotum distinctly more raised. Fore and middle femur not inflated. Otherwise same as male. Ovipositor: Ventral valves short in profile. Base of dorsal valves distinctively angular. Egg guide highly narrowing toward apex, highly curved upward. Pigmentation covering Jannone's organ distinct, sclerotized linearly at the base.

Diagnostic Characters. Schistocerca shoshone can be easily distinguished by the absence of black markings on the abdominal tergites. These black markings appear to be the universal color pattern in Schistocerca species, but S. shoshone always lacks this pattern. This species is closely related to S. lineata, because both share the similar phallic morphology and inflated fore and middle femora in males.