103 



Dimensions. — Length, 0.65 to 0.8 inch ; elytra, 0.G2 to TT) inch. 



Massachnsetts, Maine, Now Hampshire, Connecticut (Scudder); Illinois 

 Nebraska, Colorado (Thomas). 



This is very closely allied to T. pacjfica, and, if it were not for the 

 widely-separated localities in which they are found, they might be considered 

 as varieties of one species. 



T. Tiridifasciata, Harr., Rep., 3d ed., 182, PL iii, Fig. 2. 



Syu., Gryllus viridifasciatus, Geoze., Ent. Beitr., II, 115. 

 inrginianus, Fabr., Syst. Eutoui., 291. 

 {Locusta) chrysomclas, Gmelin, Liuu., Syst. Nat., IV, 2086. 

 virginia)ius, Goeze., Eiit. Beitr., II, 106. 

 Locufsia viridifasciata, Harr., Ilitcb., Eep., 583. 



Acrydium viridifasciatum, De Geer (Geoze.), Ins., Ill, 325, Tab. xlii, Fig. 6. 

 marfiinaiiim, Oliv., Eiic. iiK^tbod., VI, 229. 

 vh-ginianum, Oliv., Ene. metbod., VI, 225. 

 liemipierwn, Pal. Beanv., Ins., 145, PI. iv. Fig. 3. 

 Gomphocerus viricUfasciattis, Uliler, in Harr., Rep., 3d ed., 182, note. 

 (Edipoda virginiana, Burni., Haudb. Ent., II, 045. 



Vertex triangular, acuminate, blunt at the tip, not deflexed ; margins 

 slightly elevated ; lateral foveolse very shallow or obsolete, triangular, the 

 apex forward. Frontal costa prominent; sides nearly parallel; solid, and 

 slightly arcuate above the ocellus, punctured ; sulcate below it in the males, 

 and slightly sulcate in the females; the margins obtuse; lateral carinse 

 slightly prominent, arcuate. Median carina of the pronotum prominent, 

 continuous, and slightly arcuate in the female ; a dim, transverse incision in 

 front of the middle is visible in some specimens ; lateral carinae obliterated 

 in front, slightly ajiparent on the posterior lobe ; front margin extending on 

 the occiput in an obtuse angle; posterior extremity acute-angled. Elytra 

 and wings pass the abdomen, obliquely sub-truncate at the apex. Upper 

 carina of the posterior femora somewhat elevated near the base ; jiostcrior 

 tibiae deeply channeled exteriorly. Antenna3 short, robust, enlarged, and 

 flattened near the apex. Sub-anal plate of the male tumid, ending in a l)!unt 

 point, entire, hairy ; cerci prominent, somewhat flattened, longer than tiic 

 triangular super-anal plate. 



Color. — Head, thorax, exterior face of the posterior femora, and a broad 

 stripe along the lower margin of the elytra grass-green. Parts of the mouth, 

 antennae entire under surface, and the four anterior legs a shining reddish- 

 brown. The upper or posterior half of the elytra asli-ljrown, witii a narrow 



