SCUDDER — SUPPLEMENT TO A REVISION OF THE MELANOPLI. I7I 



lamellate and rather small, as broad at base as the narrowest part of 

 the frontal costa, narrowing but feebly and straight in the basal half, 

 beyond bent a little upward, incurved, and tapering more distinctly to 

 a bluntly angulate tip, and at the same time faintly torqueate and ex- 

 ternally sulcata, the lower margin of the apical half sirai,L;ht, the whole 

 falling considerably short of the tip of the supraanal plate ; subgenital 

 plate not very large, as a whole forming a pyramidal tubercle, almost 

 as broad apically as long, the margins meeting angularly at the apex 

 of the pyramid. 



Length of body, d" , 16 mm., V , 18 mm.; antennae, d , 6.25? mm., 

 ? , 6 mm.; tegmina, d^ , 3 5 mm., V , 4 mm.; hind femora, d , 9-5 

 mm., ? , 10.5 mm. 



2 d^, I ?. Mary's Peak, Benton Co., Oregon, Sept, 16, A. P. 

 Morse. 



This species is most nearly allied to Af. scudderi of the east, differ- 

 ing from it in the shorter antennae and tegmina, the posteriorly sub- 

 truncate pronotuin. the more curved and slightly torqueate male cerci, 

 and the acutely pyramidal subgenital plate. 



Melanoplus acutus sp. nov. 



Of small size, fusco-testaceous, flavous beneath, with a very broad 

 fiisco-piceous postocnlar band, at least in the male, crossing the j^ro- 

 zuna. Head not prominent, flavous or plumbeo-olivaceous, fusco- 

 testaceous above; vertex gently tumid, scarcely elevated above the 

 pronotum, the interspace between the eyes about half as broad again 

 (d^) or nearly twice as broad (?) as the ba<al joint of the antennae; 

 fastigium steeply declivent, considerably (d^) or slightly (?) sulcate; 

 frontal cojta failing to reach the clypeus, subequal, fully as broad as 

 the interspace between the eyes, de|)ressed at the ocellus, biseriately 

 ]junctate above;. 'eves moderate, very little prominent in the male, 

 much longer than the infraocular portion of the genae; antennae ru- 

 fous, in the female two-thirds as long as the hind femora. Pronotum 

 subequal, fusco-testaceous, pallid below the postocular band, the disk 

 gently convex, passing by a distinct though well rounded shoulder 

 into the vertical lateral lobes, which are tumid on the prozona ; me- 

 dian carina distinct, percurrent, and either equal (9 ) or subdued be- 

 tween the sulci (d^) ; front margin gently convex, in the male faintly 

 and mesially emarginate, hind margin very broadly obtusangulate, the 

 angle sometimes rounded ; prozona longitudinally quadrate {d ) or 



