1897.] 



THE SPECIES OF THE GENUS MELANOPLUS. 81 



tibiae never yellow, usually red, rarely purplish and 

 yellow^at tip (Bivittatus series). 



h^. Interspace between mesosternal lobes of male 

 distinctly more than twice as long as broad ; pro- 

 notum with conspicuous light colored lateral stripes 

 on the disk, their outer margin at the position of 

 lateral carin?e. 



i^. Cerci of niale very much more expanded 

 apically above than below, the apical border 

 slightly emarginate below. 



y\ Hind tibi?e clear red throughout 



femoraius. 

 yi Hind tibiae purplish basally, yellow (rarely 



reddish) apically bivittatus. 



/-. Cerci of male apically expanded but little 

 more above than below, the apical border con- 

 vex, with no emargination below tho??iasi. 



Jr. Interspace between mesosternal lobes of male 

 a little less than twice as long as broad ; pronotum 

 unicolorous on disk, any lateral stripes being con- 

 fined to the position of lateral carin?e. 



/\ Prozona of male feebly longitudinal; apical 

 margin of subgenital plate considerably elevated 

 and truncate ; furcula formed of apically rectan- 



gulate lobes yarrowii. 



/^ Prozona of male distinctly longitudinal; api- 

 cal margin of subgenital plate considerably pro- 

 longed and subtuberculate ; furcula formed of 



rounded lobes with a slight prolongation 



olivaceus. 

 /'-. Interspace between mesosternal lobes of male sub- 

 quadrate ; of female transverse ; prosternal spine short ; 

 tegmina maculate with roundish fuscous spots ; eyes of 

 male and head prominent, the front margin of the pro- 

 notum flaring to receive the head (Punctulatus series). 

 g\ Of large size ; furcula present as a pair of very 

 small denticulations; apical margin of male cerci 

 broadly convex, feebly emarginate on the lower half. . 



arboreus. 

 ^^ Of medium size ; furcula wanting ; apical margin 



