26 THE SPECIES OF THE GENUS MELANOPLUS. [Jan. 15, 



ing the hind femora, without distinct spots ; 

 hind femora strongly compressed ; hind tibiae 



reddish yellow complanatipes. 



{-. Tegmina of normal width and but little sur- 

 passing the hind femora, maculate along the dis- 

 coidal area; hind femora normal; hind tibiae 



glaucous canofitcus. 



fK Subgenital plate of male very broad apically, nearly 

 or quite as broad as long, apically generally notched 

 though very feebly ; furcula rarely, and then but little, 

 more than a third the length of the supraanal plate ; 

 hind tibiae usually red, but sometimes blue or green 

 (Angustipennis series). 

 g^. Hind tibiae red. 



h)-. Prozona of male subquadrate ; tegmina very 

 slender, subequal, scarcely expanded on the costa ; 

 furcula of male with straight subparallel forks. . . . 



comptus. 

 Jr. Prozona of male distinctly longitudinal, much 

 longer than its basal breadth ; tegmina of ordinary 

 breadth and costal expansion, tapering ; furcula of 



male with arcuate, strongly divergent forks 



coccineipes. 

 g"^. Hind tibiae glaucous. 



Ji)-. Furcula of male not more than a third as long 

 as the supraanal plate ; tegmina lightly maculate 



or immaculate angustipennis . 



Ii\ Furcula of male more than a third as long as 

 the supraanal plate ; tegmina usually heavily macu- 

 late impiger. 



e\ Furcula of male slight, the projecting portion not 



longer or scarcely longer than the last dorsal segment from 



•which it springs. 



/^ Subgenital plate of male broad, throughout broader 



than the extreme base of the cerci ; apical portion of 



supraanal plate suddenly depressed just beyond the 



middle ; cerci moderately broad, not much narrowed in 



the middle, more or less suddenly bent inward near tip, 



exteriorly sulcate at apex (Packardii series). 



g^. Interspace between mesosternal lobes of male 

 nearly or quite twice as long as broad. 



