444 PROCEEDINGS OP THE AMERICAN ACADEMY. 



e^. Median stripe of pronotum generally narrowing from in front back- 

 ward ; wings more or less and simply infumate. 

 /I. Antennse of male about one half as long again^as head and prono- 

 tum together ; tegmina immaculate, or feebly and obscurely maculate ; 



wings feebly infumate 14. Jlavofasciala. 



f'^. Antennae of male not more than one third as long again as head 

 and pronotum together; tegmina immaculate; wings distinctly infu- 

 mate 15. iiifumata. 



e^. Median stripe of pronotum broad and equal throughout ; wings flavo- 



infumate 16. cvqualis. 



d'. Lateral lobes of pronotum without markings 17. maya. 



Jfl. Pronotum distinctly obtusangulate behind, even in the male, the angle gen- 

 erally rather broadly and obtusely rounded at apex. 



ci. Pronotum never tectate, or at most but very feebly ; tegmina more or less 

 distinctly, generally distinctly, maculate throughout (or, if without maculation, 

 the head, pronotmn, and closed tegmina have no light colored dorsal stripe); 

 wings generally hyaline, occasionally lutescent basally or even throughout, the 

 veins fuscous or ferruginous, rarely luteous ; lateral lobes ofpronotimi often 

 marked conspicuously with longitudinal fuscous stripes on a lighter ground, 

 but often unmarked. 



d^. Pronotum so broadly and strongly rounded behind as to be rotundate, 

 rather than obtusangulate ; prostcnial spine somewhat retrorse. 



18. aiistralis, 

 d'K Pronotum distinctly angulate behind, the angle more or less but not 

 greatly rounded, at least in the male; in the female it is sometimes rather 

 broadly rounded. 



fii. Pronotum never tectate, generally distinctly striped on the lateral lobes. 

 f-. Hind femora not transversely fasclate. 



7^. Prosternal spine erect or suberect, straight or almost straight; 



lateral lobes of pronotum not or feebly marked, and tlien irregularly 



blotched. 



/(I. Dorsal stripe of pronotum obsolete ; maculations of distal half 



of tegmina slight and scattered, or if at all regular it is to form 



numerous narrow one- or two-celled transverse broken stripes. 



19. gulosa, 

 Ifi. Dorsal stripe of pronotum moderately distinct ; maculations 

 of distal half of tegmina massed in several rather broad oblique 



bands . 20. hogotensis. 



(J-. Prosternal spine distinctl}' curved and retrorse ; lateral lobes of 

 pronotum distinctly banded longitudinally. 



h^. Pronotum griseous, slenderly strigate with fuscous ; wings 



nearly h^-aline 21. inscripia. 



h-. Pronotum with a broad median light dorsal stripe between 



fuscous bands; wings flavo-infumate 22. idonea. 



f^. Hind femora distinctly trifasciate. 



g^. Pronotum with no dorsal stripe; tegmina distinctly maculate 

 throughout; interspace between eyes distinctly narrower than nar- 

 rowest part of frontal costa 23. literosa. 



