12 THE SPECIES OF THE GENUS MELANOPLUS. [Jan. 15, 



y\ Interspace between mesosternal lobes of 

 female strongly transverse ; lateral carinae of 

 pronotum rounded so as to be subobsolete ; 

 postocular piceous band generally distinct, 



complete, percurrent pacificus. 



f. Interspace between mesosternal lobes of 

 female subquadrate or feebly transverse ; lateral 

 carinae of pronotum distinct ; postocular 

 piceous band generally obsolete or wholly 

 wanting, and even when distinct wholly con- 

 fined to the prozona borckii. 



P. Posterior margin of pronotum mesially emar- 

 ginate ; tegmina distinct, lateral, 

 y^ Color testaceous with feeble or no postocular 



dark belt ienuipennis. 



J^. Color dark fuscous, with distinct and 

 broad postocular band, at least in the male. . . 



7?iissio7iujn. 

 h\ Subgenital plate of male distinctly tuberculate 

 at tip. 



/\ Tegmina more or less widely separated, rarely 

 attingent ; interspace between mesosternal lobes 

 of male twice or nearly twice as long again as 



broad ; cerci not finely acuminate at tip 



fuscipes. 

 P. Tegmina attingent ; interspace between meso- 

 sternal lobes of male only slightly longer than 

 broad ; cerci tapering, rather regular, subfalcate, 



finely acuminate at tip.. scitulus. 



e". Cerci of male feebly compressed, substyliform, taper- 

 ing almost uniformly throughout, apically acuminate 

 (Puer series). 

 /\ Tegmina attingent ; subgenital plate of male short 

 and broad, its apical breadth surpassing the length of its 



lateral margin, not elevated apically .flabellatiis. 



f'\ Tegmina distant ; subgenital plate of male distinctly 



narrower than long, elevated apically puer. 



P. Cerci of male more or less expanded apically, so as to be 

 broader at some point beyond the middle than at the middle, 



