174 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



icf, I?. Corvallis, Benton Co., Oregon, May 23, June g, A. B. 

 Cordley (A. P. Morse). 



Its peculiar cerci make the species an aberrant irreuiber of its series. 



BoRCKii Series. 



The species described since the publication of my Revision, to- 

 gether with those here made known, double the number of forms be- 

 longing to this series and this necessitates a new arrangement of the ma- 

 terial, though without much disturbance of the former table, since 

 most of the species follow at the end of the previous list. They may 

 be separated as follows : 



table of the species in the BORCKII SERIES OF MELANOPLUS. 



a^. Sul^genital plate of male more or less elevated posteriorly, witli high 

 basal margins, but with no distinct apical tubercle. 



6^. Posterior margin of pronotum not mesially emarginatc ; teginina at- 

 tingent or approximate. 



c^. Attenuated portion of male ccrci hardly more than half as long as 

 basal expanded tapering portion. 

 i/K Interspace between mesosternal lobes of female strongly trans- 

 verse; lateral carinae of pronotum rounded so as to be subobsolete; 

 postocular piceous band generally distinct, complete, percurrent. 



pacificits Scudd. 

 d~. Interspace between mesosternal lobes of female subquadrate or 

 feebly transverse; lateral carinas of pronotum distinct; postocular 

 piceous band generally obsolete or wholly wanting, and, even when 



distinct, wholly confined to the prozona horckii Stal. 



A Attenuated portion of male cerci nearly or quite as long as ex- 

 panded basal portion pinctus sp. nov. 



U^. Posterior margin of pronotum mesially emarginate; tegmina distant, 

 lateral. 



c^. Color testaceous with feeble or no postocular dark l)elt. 



ienitipennis McNeill. 

 c^. Color dark fuscous with distinct and broad postocular band, at, 



least in the male 7nissionum Scudd. 



as. Subgenital plate of male distinctlv tubcrculate at tip, the basal margin 

 not greatly elevated. 

 <Ji. Tegmina distinctly shorter than the pronotum, short ovate, attingent 

 or approximate, rarely distant, apically well rounded. 



c^. Hind tibise blue; male cerci distinctly arcuate or sinuate. 



r/i. Tegmina more or less widelv separated, rarely attingent; inter- 



