134 VIKH EEDISGS OF THE S\Tli)XAl. MfS/HM. vouxx.. 



/«'. 8n])ra:inal ]»ljit<' rej^iilarly ti ianj^nljir with straight iiiar;;iii8; sub- 

 genital plate with a postmarj^iiial tuhen-h* at apex (S. Iiiipn<li<-us 



series ) 'M. inipudiniH i p. L'04). 



/l^ Snjirannal plate with sides more or less inemilar or sinuate by 

 lateral <<»uii»ressiou or by the ilepreHsiuii of the apical half of the 

 plate; Hubjjenital ]»late with no ])ostniar!;;inal tubercle thon<rh scute- 

 times with the niar<;in itself ajiically thicken*'*!. 



i'. Interval between niesosternal lobes of male distinctly lonj;er, 

 generally much longer, th;in broad anil much narrower than the 

 lobes; metasternal Iol>es attiugeiit or subattin{j;ent in the male (12. 

 l)aws(Mii series). 

 f. Sub<;enital jdatc of male broad, at least as broad as long; 

 cerci incurved feebly and gently or not at all: hind tibiae red. 



50. (liiwHoni I p. 227). 

 _/-'. Subgenital plate of male rather narrow, narrower than buig. 

 although short; cerci abruptly incurved apically; hind tibia<( 

 yellow, 

 k . Tegmina only attaining the tip of the hind femora; supra- 

 anal plate of male suddenly depressed in apical half: furcula 

 slightly developed, sluuter than last dorsal segment. 



51. yhidstoni (Yt.22if}. 

 k'. Tegmina considerably surpassing the tip of the hind femora: 

 8Ui)raanal plate of male not apically depressed; furcula well 

 developed, about one-third as long as the supraanal ]»late. 



52. paliiieri (p. 230.. 



i-. Interval between niesosternal lobes of male quadrate, almost or 



a little transverse and but little narr«»wer than the lobes; meta- 



sternal lobes of male only approximate (17. Fasciatus series). 



/■ . Cerci no slenderer or hanlly slenderer on apical than on basal 



half, far surpassing the supraanal jdate; furcula very slight, not 



so long as last dorsal segment 77. /V/.scjV/'vs (p. 267*. 



/-. Cerci much slenderer on apical than on basal half, shorter than 

 the supraanal plate; furcula long an<l slender, reaching the mid- 

 dle of the supraanal plate 78. borealis (p. 270). 



/-. Subgenital plate of male cons])icuoiisly narrower at apex than at base 

 (generally only half as wide ), rarely at all elevated at apex above the lateral 

 margins and never notched ' : cerci always distinctly narrowing on basal 

 half, the upper angle of the ai)ex pndonged and often subacuminate (19. 

 Femur-rubrum series). 



f/'. Distal half of male cerci much less than half as broad as the extreme 

 base: interval between niesosternal lobes of male nearly or quite twice 

 as long as broad; tegmina usually surpassing the hind femora. 



hK Pronotum marked above with light cariual streaks on a dark 



ground: tegmina dark olivaceous green Si. iilniiibens (i).276). 



h-. Prouiitiim nniforiii in cnloring above: tegmina dark fuscous. 

 »■'. Furcula not reaching or scarcely reaching the middh' of the 



supraanal plate H2. femnr-ruhriim (p. 27?*'. 



«■-. Furcula extending considerably beyond the middle of the supni- 



anal jdate 83. propinqiais (p. 285). 



g-. Distal half of male cerci distinctly more than half as broad as the 

 extreme base: interval between niesosternal lobes of male scarc(dy if at 

 all longer than broad; tegmina usually falling far short of the tips of 

 the hind femora. 



' Fxcept in ^^. wonficola. where it is very broadly and shallowly notched by the 

 tubercular elevation of the lateral extremities of the apical margin. 



