3f38 



PSYCHE. 



(June .899. 



Melanoplus sylvaticus n. sp. — Medium 

 size, brownish fuscous above, yellowish 

 below; head testaceous, or brown much in- 

 fuscated above and with a broad post-ocular 

 stripe ; occiput moderately tumid, slightly 

 elevated above the pronotum ; interspace 

 between the ejes a little narrower {$), or 

 half as broad again ( $ ), as the first antennal 

 joint ; fastigum rather steeply delivent, 

 deeply,. ((J) or distinctly, ( ? ). sulcate ; 

 frontal costa slightly narrowed above, other- 

 wise equal in width and nearly percurrent, 

 distinctly sulcate ((?) at and below the ocel- 

 lus, or slightly sulcate for a very short dis- 

 tance below the ocellus ( 5 ) punctate 

 throughout and about as broad as the inter- 

 ocular space; eyes rather large, somewhat 

 prominent, a little longer than the infra- 

 ocular portion of the genae ; antennae dark 

 brown somewhat {$), or scarcely, (?), 

 longer than the head and pronotum. Prono- 

 tum faintly (<?), or decidedly, (?) expanding 

 posteriorly; above infuscated (J) or some- 

 times, (?) ferruginous; on the sides flavous 

 or flavo-testaceous below, Avith the upper por- 

 tion occupied by a broad shining piceous 

 stripe broadening slightly on the metazone ; 

 disk convex, passing by a slightly angulate 

 shoulder into the anteriorly somewhat 

 tumid lateral lobes; median carina distinct 

 on the metazone, variable and more or less 

 indistinct on the prozone but least apparent 

 between the second and third sulci ; front 

 margin slightly convex or a little emarginate, 

 hind margin very obtusely angulate ; prozone 

 decidedly (J) or faintly (?), longitudinal 

 and about half as long again as the densely 

 punctate metazone; prosternal spine conical, 

 bluntly pointed ; space between the meso- 

 sternal lobes as long as (J), or not so long 

 as ( ? ) broad. Tegmina slightly shorter than 

 the pronotum, scarcely twice as long as broad 

 elliptical, overlapping a ve.ry little, fuscous 

 or brownish fuscous. Fore and middle 

 femora slightly tumid in the male, green or 

 flavous ; hind femora rather slender but 

 thick, flavous with the outer and inner faces 



dark green or ferruginous, never in the least 

 fasciate outwardly, sometimes with very 

 faint infuscations on the upper surface and 

 with a more or less deeply infuscated geni- 

 cular spot; hind tibiae green with the 

 extreme base more or less infuscated but 

 without a pale ring basally ; spines black, 

 ten or eleven in the outer series. Extremity 

 of abdomen in the male clavate scarcely at 

 all recurved ; the supra-anal plate triangular 

 with the sides gently convex, the median 

 sulcus very broad and deep, equal and 

 terminated about the middle by a short 

 transverse ridge; furcula very small, distant 

 triangular denticulations; cerci shorter than 

 the supra-anal plate, straight, rapidly tapering 

 from the base to the middle, beyond very 

 slightly tapering substyliform and bluntly 

 pointed, the width at the middle being less 

 than a third the width of the base ; subgenital 

 plate somewhat longer then broad, scarcely 

 elevated apically and ending in a small 

 tubercle. 



Length of body, male, 17 mm. female, 25 

 mm. 



Length of tegmina male, 4 mm. female 54 

 mm. 



Length of hind femora, male, 11 mm. 

 female, 14 mm. 



Seven males, three females, along 

 wooded clifts in Carroll, Boone, and 

 Newton counties. 



This seems to be an uncommon 

 species though probably widely scat- 

 tered. It is very closely related to MeU 

 anoplus viridipes Scudd., though it does 

 not fall in the same part of Scudder's 

 key owing to the differently shaped 

 cerci. It is readily distinguished from 

 that species by the straight, tapering, 

 comparatively short cerci, the little 

 recurved extremity of the male abdo- 

 men, the absence of post-femoral bands 



