SCUDDER SUPPLEMENT TO A REVISION OF THE MELANOPLI. 20I 



the apical margin a little elevated, well rounded, entire, occasionally 

 (by accident ?) feebly notched. 



Length of body, cf, 19 mm., ?, 24 mm.; antennae, d'^S 5 mm., 

 ?, 8 mm.; tegmina, cJ*, 5 mm., ?, 5.5 mm.; hind femora, d^, 11 

 mm., ?, 12.25 i^"*"^- 



36 d, 36 9. Mary's Peak, Ben.son Co., Oregon, Sept. 16, A. P. 

 Morse. 



This species is very closely allied to the common Oregon species of 

 lower levels, M. validus just described, differing from it mainly in the 

 slenderness and apical roundness of the male cerci and the rounded 

 tips of the tegmina, characters which appear to be pretty constant. 



Melanoplus debilis sp. nov. 



Plate IX., Figure 7. 



Of rather small size and not very stout, rather dark fuscous, dull 

 flavo-testaceous beneath, with a broad, subpiceous, postocular band 

 extending to the metazona. Head moderately prominent, dull plum- 

 beo- testaceous, more or less infuscated especially above, the postocular 

 band margined with testaceous; vertex feebly tumid, scarcely elevated 

 above the pronotum, the interspace between the eyes considerably 

 broader than (cJ*) or nearly twice as broad as (?) the first antennal 

 joint; fastigium steeply declivent, distinctly (cT) or rather feebly (?) 

 sulcate ; frontal costa just failing to reach the clypeus, subequal but 

 generally a little narrowed above, especially in the male, fully as broad 

 as the interspace between the eyes, more or less sulcate below the 

 ocellus, especially in the male where it is sometimes sulcate through- 

 out, biseriately punctate above; eyes moderate, considerably promi- 

 nent in the male, much longer than the infraocular portion of the 

 genae ; antenna castaneous, often more or less infuscated, almost as 

 long (c?) or two-thirds as long (?) as the hind femora. Pronotum 

 subequal {d) or feebly enlarging from in front backward ( ? ), fuscous 

 or dark fuscotestaceous, brighter or duller testaceous below the postoc- 

 ular band, the disk gently convex and passing by a distinct but well 

 rounded shoulder into the vertical lateral lobes, which are feebly 

 tumid on the prozona; median carina feeble on the prozona, distinct 

 on the metazona ; front margin faintly convex, hind margin broadly 

 obtusangulate; prozona longitudinally (d^) or transversely (?) sub- 

 quadrate, fully {d) or nearly (?) a third longer than the finely punc- 



