SUBFAMILY III. LOCUSTIN^. 381 



bb. Furcula wholly absent; tegmina usually less widely separated, 



often attingent. 

 d. Subgenital plate not greatly produced backward in the form of 



a conical scoop; cerci not as in dd. below. 



e. Cerci subspatulate, the apex larger and more evenly rounded 

 than in rotundipennis (Fig. 132, a); apex of subgenital 

 plate produced into a short rounded knob; tegmina sepa- 

 rated by 1.5 mm. 173. PYGM^UH. 

 ee. Cerci not subspatulate; subgenital plate witlibut an apical 



knob; tegmina subattingent or feebly overlapping. 

 f. Cerci broad at base, thence with sides almost straight, 

 feebly widening into a broad subrectangular plate, its 

 apex either subtruncate or broadly rounded (Fig. 132, b) ; 

 tegmina of female obovate, the tips subtruncate. 



174. STEGOCERITS. 



ff. Cerci broad at base, the apical half expanding into a lamel- 

 late plate resembling a scapula with apex broadly ob- 

 tusely emarginate (Fig. 132, c) ; tegmina of female elon- 

 gate-oval their tips broadly rounded. 175. SCAPULABIS. 

 dd. Subgenital plate greatly produced and compressed into a coni- 

 cal scoop with sharply rounded apex; cerci moderately broad 

 at base, then narrowing sharply on dorsal margin to half the 

 basal width at middle, again expanding to basal width and 

 finally gradually narrowing to a sharp angle (Fig. 132, e.) 



176. MIRUS. 



aa. Furcula nearly half as long as supra-anal plate, the latter with deep 

 subapical lateral emarginations which give its apex a trilobate as- 

 pect (Fig. 133, /.) 177. STRUMOSUS. 



Fig 133. a and b, Dorsal and side views of apex of male abdomen of .!/. pticr. X l -5- 

 Supra-anal plates of males of Mclaiioplus. c, stcgoccrciis; d, minis: e, scapn/aris', f, stru- 

 inosns. X I0 - (After R. & H.) 



171. MELANOPLUS PUER (Scudder), 1877a, 87. Least Short-winged Locust. 

 Very small for both genus and group, the females one-third the larger. 

 Above dull reddish-brown; beneath dull yellow. Face yellow, usually dot- 

 ted with small fuscous spots; occiput, disk of pronotum and dorsum of 

 abdomen dark reddish-brown. Male with upper half of prozonal lateral 

 lobe, meso- and metapleura and sides of two or three basal segments of 

 abdomen shining black; female with these dark markings often vague. 

 Hind femora dull yellow, their upper and inner faces usually bifasciate 

 with fuscous; lower face reddish-yellow. Hind tibiae purplish-green, the 

 base and tip dull yellow mottled with brown; spines black, pale at base. 

 Interocular space narrow, as broad as, male, or but slightly broader, female, 

 than first antennal joint. Fastigium strongly declivent, widened and 

 broadly sulcate in front of eyes. Frontal costa narrow, shallowly sulcate 

 at and below the ocellus. Eyes subelliptical, those of male very prominent 



