SUBFAMILY III. LOCUSTIN^E. 429 



much as in (inyustipcnnis. being shorter than supra-anal plate, 

 subspatulate, incurved, the apical third concave on outer side. 



Scudder, in his "Revision, " ascribed five species to his Pack- 

 ard ii Series. Of these but one has been recorded from our eastern 

 territory, while two others, then unknown to him, are here in- 

 cluded. 



KEY TO EASTERN SPECIES OF PACKARDII GROUP. 



a. Interval between mesosternal lobes of male fully twice as long as 



broad; general color brownish-yellow or pale grayish-brown. 



b. Lower face of hind femora yellow; larger and much more robust, 



length of body, male, rarely less than 24 mm., of female, 26 or 



more mm. 200. PACKARDII. 



lib. Lower face of hind femora bright coral-red; smaller and much 



more slender, length of body, male, less than 24, of female less 



than 26 mm. 201. FLUVIATILIS. 



aa. Interval between mesosternal lobes of male subquadrate, about as 



broad as long; general color dark fuscous-brown. 202. STONEI. 



200. MELAXOPLUS PACKARDII Scudder, 1878a, 287. Packard's Locust. 



Size usually above the medium for the genus, the sexes subequal. 

 Brownish-yellow or pale reddish-brown above; dull clay-yellow beneath. 

 Face usually uniform dull yellow, sometimes sprinkled with fuscous dots. 

 Occiput with a broad median dark reddish-brown or fuscous stripe, this 

 usually widened and extending back along the full length of the middle of 

 pronotum, but often absent from the latter; upper third of prozonal lateral 

 lobes with the usual dark postocular stripe of the genus, this often broken 

 and obscure in female. Tegmina pale grayish- or reddish-brown, often 

 immaculate, male, usually with a row of small fuscous spots along the 

 median area, female. Hind femora dull yellow, the upper half of outer 

 face usually with a narrow ill-defined fuscous stripe ; upper face with two 

 narrow fuscous cross-bars; inner and lower faces, bright to dull yellow. 

 Hind tibife either glaucous or bright red, the apical halves of spines black. 

 Occiput swollen, distinctly elevated above the pronotum; interocular space 

 half as wide again, male, or twice as wide, female, as basal joint of an- 

 tenna-; fastigium strongly declivent, widely and rather deeply concave in 

 both sexes. Frontal costa as broad as interocular space, distinctly sulcate 

 below the ocellus. Pronotum as described above, the prozona about one- 

 fourth longer than metazona. Tegmina but slightly surpassing the tips 

 of hind femora, distinctly the narrower in the male. Supra-anal plate as 

 above described, its apex acute; median sulcus broad, rather shallow, per- 

 rurrent, its apical third less distinct. Furcula consisting of a pair of short, 

 flattened, well separated, unequally tapering, widely divergent processes. 

 Cerci and subgenital plate as described above, the former with apex usu- 

 ally broadly rounded, sometimes subtruncate (Fig. 145, b. c. ) Length of 

 body, $, 2230, $, 2633; of antennae, $, 1214, 9, 10.512; of pro- 

 notum, ($, 6.5 7, $, 78; of tegmina, <J , 2124.5, $, 2224; of hind 

 femora, $, 1416, $, 1516.5 mm. (Fig. 146.) 



A species of western and northwestern range, included here 



