1897.] THE SPECIES OF THE GENUS MELANOPLUS. 9* 



7'. Tegmina as long as or longer than the pro- 

 notum, apically acuminate ; cerci of male short 

 and not very slender, rather strongly bent- 

 arcuate, as seen laterally cancri^ 



p. Subgenital plate of male distinctly narrower than 

 long, often narrowing apically. 

 g^. Cerci of male tapering but little, generally rather 

 stout, or if slender then tapering almost not at all in 

 apical half, which is never less than half as broad as 

 the base and is blunt-tipped, rarely, as in M. ju- 

 vencus, angulate below. 



h^. Interval between mesosternal lobes of male at 

 least half as long again as broad, sometimes fully 

 twice as long; hind tibiae usually blue or green 

 (Dawsoni series). 



P. Cerci of male apically turned sharply inward 



at right angles or even less reflexus. 



P. Cerci of male straight or gently incurved, 



sometimes curved more strongly at apex, but not 



bent abruptly at right angles. 



y^ Lateral margins of subgenital plate of male, 



as seen from above, regularly convergent nearly 



to the tip ; furcula developed only as slightly 



swollen lobes ?nertdwnalis. 



f\ Lateral margins of subgenital plate of male, 

 as seen from above, basally subparallel, apically 

 rather broadly rounded ; furcula developed as 

 a pair of projecting spines or fingers. 



k^. Tegmina much shorter than the prono- 

 tum, widely separated ; interval between 

 mesosternal lobes of female distinctly trans- 

 verse, as broad as the lobes; subgenital 

 plate of male with distinct though minute 



apical tubercle mi it tarts. 



Jr. Tegmina longer than the pronotum, 

 overlapping ; interspace between mesoster- 

 nal lobes of female quadrate ; subgenital 

 plate of male with minute apical tubercle or 

 none. 



/^ Subgenital plate of male not pyra- 



