400 NEW NORTH AMERICAN MELANOPLI (ORTHOPTERA) 



Caudal 



width of Length of 



Length of Length of pronotal Length of caudal 

 body pronotum disk tegmen femur 



9 



West Point, New York 



(4) 23-24 4.9-5 3.3-3.3 5.3-6.2 10.2-11.3 



Plainfield, New Jer- 

 sey 22.7 4.9 3.2 5.7 11.2 



Collison Ridge, Vir- 

 ginia, allotype 23.8 5.3 4.4 5.4 11.8 



Collison Ridge, Vir- 

 ginia, paratypes 21-25 .5 5-5.3 3.2-3.7 4.8-5.8 1 1-12 



Snickers Gap, Vir- 

 ginia 24.5 5.2 3.9 6.4 11.9 



White Sulphur Springs, 



West Virginia 26.3 5.8 3.5 6.2 12.3 



Coloration similar to that occasionally developed in viridipes, differing 

 from the usual in that species as discussed above in the preliminary com- 

 parison. 



Male. Head reed yellow, occiput brownish olive, a broad shining black 

 postocular bar on each side, eyes and antennae cinnamon brown. Pronotum 

 with disk brownish olive, lateral lobes in dorsal section (three-fifths of great- 

 est depth) shining black, remaining portions ivory yellow. Tegmina immac- 

 ulate brownish olive. Abdomen isabella color dorsad, chamois ventrad, 

 the penultimate sternite tipped with shining black, the entire subgenital 

 plate shining black except in subchitinous portion. Cerci shining black ex- 

 cept for a quadrate dorso-proximal area of chamois. Cephalic and median 

 limbs olive-yellow, fading on median femora proximad to olive-ocher. Caudal 

 femora olive-ocher, showing two broad transverse dorsal bands of prout's 

 brown which, on the external face, run obliquely cephalad to the median 

 line, entire genicular area blackish, the paler area before this often tinged 

 with green. Caudal tibiae clear light yellowish olive, with a small black 

 basal annulus; the spines black, the spurs buffy with black tips. 



Female with less contrasting but similar coloration. Head tawny shading 

 to buff, tinged with tawny on genae and dark cinnamon-brown on occiput, 

 broad postocular bars shining blackish Drown, eyes prout's brown, antennae 

 cinnamon brown. Pronotum with disk cinnamon brown, this continued on 

 the dorsal portions of the lateral lobes, that area frequently shining blackish 

 brown along the ventral margin and cephalad; lower two-fifths of lateral 

 lobes buffy, weakly tinged with tawny. Tegmina immaculate prout's brown. 

 Abdomen ochraceous-tawny dorsad, suffused with cinnamon-brown, ventral 

 surface weak yellow ocher. Cephalic and median limbs mars brown, the 

 femora with a greenish tinge. Caudal femora dorsad vinaceous-tawny with 

 two broad transverse bars of mars brown (individually varying from weak 

 to well defined), these scarcely traceable on the russet to pecan brown exter- 

 nal face; genicular lobes, laterad only, blackish with genicular areas brown. 



