NO. 1124. iwrisroy OF THE MELAXOPLISCUDDEK. 135 



h l . Apical margin of subgenital plate not elevated where it joins the 

 lateral margins, so thut it is straight as seen from behind. 



84. extremus (p. 2X7). 



h. Apical margin of subgenital plate elevated to form a tubercle 

 where it joins the lateral margins, so that it is broadly notched as 



seen from behind 85. monticola (p. 290). 



c-. Cerci of male more or less expanded apically, so as to be broader at some 

 point beyond the middle than at the middle, spatulate or snbspatulate or 

 apically bifurcate. 



d l . Cerci of male simply spatulate or subspatulate, at most moderately broad, 

 apically entire and no broader than at base; furcula always developed as dis- 

 tinct deuticnlatioiis, generally as long or very long ones. 

 c 1 . Furcula of male long and prominent, the projecting portion much longer 

 than the last dorsal segment from which it springs, generally more than a 

 third as long as the supraanal plate. 



f l . Subgenital plate of male only moderately broad at apex, distinctly 



narrower than long, never in the least notched and rarely, and then but 



slightly, elevated apically; furcula rarely (and then but little) less, 



usually more, than half as long as the supraanal plate; hind tibiae green 



or blue, rarely (M. complan atipes} reddish yellow (20. Cinereus series). 



g l . Furcnla of male only moderately broad at base, tapering uniformly, 



not more than half as long as the supraanal plate; cerci uniformly 



incurved throughout, not nearly reaching the tip of the supraanal 



plate; the latter abruptly and strongly contracted shortly before its 



tip. 



h l . Prozona of male quadrate or transverse ; apical margin of sub- 

 genital plate of male, as seen from above, well rounded. 



86. bispinosus (p. 292). 



h 2 . Prozoua of male a little longer than its basal breadth; apical 

 margin of subgenital plate of male, as seen from above, rounded 



angulate 87. terminal (p. 293). 



# 2 . Furcula of male unusually broad at base, usually tapering unequally, 

 the narrowing beginning beyond the base and leaving a portion of the 

 apex equal and very slender, the whole considerably more than half the 

 length of the supraanal plate; cerci bent suddenly inward before the 

 tip and at the tip reassuming, at least in part, the original course, 

 reaching the tip of the supraaual plate; the latter with no abrupt pre- 

 apical constriction. 



h l . The distal twist of the male cerci conspicuous and involving the 

 apical half of the same. 



1 1 . Furcula of male narrowing uniformly or almost uniformly through- 

 out; hind margin of pronotum.very obtusangulate; disk of protiotuni 

 dotted obscurely if at all with fuscous 88. cyanipes (p. 295). 



1 2 . Furcula of male with a considerable part of the apical portion 

 equal and very slender; hind margin of pronotum only a little 

 obtusangulate; disk of pronotum generally distinctly dotted with 

 fuscous 89. cinereus (p. 296). 



A 2 . The distal twist of the male cerci inconspicuous, involving only 

 the extreme tip. 



1 1 . Tegmina long and very slender, far surpassing the hind femora, 

 without distinct spots; hind femora strongly compressed; hind 

 tibiae reddish yellow 90. complanatipea (p. 298). 



1 2 . Tegmina of normal width and but little surpassing the hind 

 femora, maculate along the discoidal area; hind femora normal; 

 hind tibiae glaucous 91. canonicus (p. 300). 



