30 THE SPECIES OF THE GENUS MELANOPLUS. 



[Jan. 15. 



fully, or much more than twice as long as broad ; of 

 female generally longer than broad, rarely quadrate ; 

 prosternal spine generally long ; tegmina usually clear, 

 or with a marked distinction in color between the 

 dorsal and lateral areas, or with the angle between the 

 two marked by a conspicuous light colored stripe ; head 

 less prominent and with less prominent eyes than in the 

 alternate category, the front margin of the pronotum in 

 no way flaring to receive the head. 



g^. Furcula of male entirely absent, or present only 

 as a minute point or bead ; hind tibiae generally 

 yellow, but sometimes red fRobustus series). 



h^. Tegmina fully equal to or surpassing the hind 

 femora; hind tibias yellow. 



/^ Cerci of male boot-shaped, the foot as long 

 as the leg, the apical margin deeply emarginate 

 below ; markings of the outer face of hind femora 

 so run together as to be more longitudinal than 



transverse differentialis. 



i"^. Cerci of male apically expanded only a little 

 more above than below ; the apical margin regu- 

 larly or almost regularly convex; markings of 

 outer face of hind femora transverse. . . .robustus. 

 h'\ Tegmina somewhat abbreviated, not reaching 

 the extremity of the hind femora ; hind tibiae red 

 or reddish yellow. 



/\ Apical margin of male cerci convex or angu- 



lato-convex. 



y^ Tegmina distinctly and considerably 



spotted with fuscous on the lateral field ; cerci 



of male nearly equal on proximal half, the 



apical margin convex viola. 



y ^ Tegmina almost uniformly fuscous on lateral 

 field ; cerci of male distinctly tapering on 

 proximal half, the apical margin broadly 



angulate clypeatus. 



P. Male cerci apically forked, the apical border 



being deeply emarginate furcatus. 



g"^. Furcula of male distinctly present, though always 

 very small, angulate, the angle rarely produced ; hind 



