GOMPHOCEEUS. 93 



right angle ( c? ) or greater ( ? ) . The anterior tibiae rather heavy 



apically. [Alpine.] [3. charpenterii, Thorn.] 



A\ Fastigium of the vertex rounded and with the lateral foveolae obscure. 



Posterior femora robust 4. meridionalis , sp. n. 



[l. Gomphocerus clepsydra, Scudder. 



Gomphocerus clepsydra, Scudd. in Dawson's Rep. Geol. 49th Par. p. 344 (1875) l ; Rep. Chief 

 Eng. p. 506 (1876) 2 ; Bruner, Third Rep. U.S. Ent. Comm. p. 56 (1883) 8 ; McNeill, Proc. 

 Dav. Acad. Nat. Sci. vi. p. 266 (1897) \ 



Gomphocerus euterpe (Dodge, MSS.), Bruaer, Canad. Ent. ix. p. 144 (1877) 5 ; Third Rep. U.S. 

 Ent. Comm. p. 56 (1883) 6 . 



Gomphocerus antennaria (Scudder, MSS.), McNeill, Proc. Dav. Acad. Nat. Sci. vi. p. 266 (1897) 7 r 



Hab. North America 1_7 , plains of the Saskatchewan to New Mexico and Texas. 

 An insect occurring at moderate elevations.] 



[2. Gomphocerus Clavatus, Thomas. 

 Gomphocerus clavatus, Thomas, Rep. U.S. Geol. Surv. v. p. 96 (1873) l ; Bruner, Third Rep. U.S. 

 Ent. Comm. p. 56 (1883) 2 ; Publ. Nebr. Acad. Sci. iii. p. 22 (1893) 3 ; McNeill, Proc. Dav. 

 Acad. Nat. Sci. vi. p. 265, fig. 27 (1897) \ 



Hab. North America 1_4 . 



This insect has much the same distribution as the preceding, but frequents somewhat 

 different localities.] 



[3. Gomphocerus charpenterii, Thomas. 



Gomphocerus charpenterii, Thomas, Bull. U.S. Geol. Surv. Terr. ser. 1, no. 2, p. 65 (1874) 1 ; 



Glover, Illustr. Amer. Ent., Orthopt. t. 16. fig. 8 (1874) 2 ; Scudd. Apalachia, viii. t, 41. 



figg. 1, 2 (1898) 3 . 

 Stenobothrus charpenterii, Thomas, Proc. Dav. Acad. Nat. Sci. i. p. 251 (1876) *. 



Hab. North America 1-4 , Kocky Mountain region from the northern boundary of 

 the United States southward into New Mexico. 



Unlike the two preceding species, this locust appears to be strictly alpine in its 

 distribution, occurring from 8000 to 13,000 feet above sea-level. It is found at various 

 widely isolated localities on mountain peaks and high plateaux.] 



4. Gomphocerus meridionalis, sp. n. 



A moderately robust insect, with long, heavy hind femora. General colour brownish-cinereous, streaked with 

 testaceous and varied with fuscous and black. 



Head a trifle wider than the front edge of the pronotum ; occiput on the same level with the disc of the 

 pronotum, somewhat rugose and provided with a percurrenfc median carina ; fastigium short, blunt, and 

 furnished in front with low, coarse carinas which are evenly curved; lateral foveolae inconspicuous, 

 elongate-oval or elliptical; frontal costa rather prominent, evenly divergent below, the surface gently 



