NO. 1124. REVISION OF THE MELANOPLI SC UDDER. 381 



obtusely and bluntly angulate; lateral lobes vertical, their lower border 

 very obtusely angulate in the middle. Prosternal spine prominent, 

 subcylindrical, bluntly pointed, laterally compressed at the base, at 

 least in the male; mesosternal lobes narrowly separated in both sexes; 

 metasternal lobes subattingent (male) or as distant as the mesosternal 

 lobes (female). Tegmina and wings variable, but at least as long as 

 the pronotum. Hind femora reaching or generally surpassing the tip of 

 the abdomen, moderately stout but tapering very regularly, unarmed 

 above, the inferior geuicular lobes produced but apically rounded, 

 marked at base with a transverse dark bar; spiued margins of hind 

 tibiae smooth, scarcely dilated toward the tip, provided on outer margin 

 with nine to thirteen, generally eleven, spines, the larger number being 

 more common in the female. Subgenital plate of male short, transverse, 

 of subequal width throughout, more or less tumid, the lateral margins 

 ampliate at the base; anal cerci of male long, laminate, subclepsydral 

 in shape, incurved; edges of inferior valve of ovipositor smooth. 



This genus bears a close general resemblance to the gerontogeic 

 genus Oxya, but differs strikingly from it in the separated metasterual 

 lobes of the female, the blunt tips of the inferior genicular lobes of the 

 hind femora, the smooth edges of the hind tibiae and the absence of 

 the terminal spine of the outer series of the same. It is very narrowly 

 separable from Melanoplus, and I do not see how it could be distin- 

 guished from it if we include in it, as Stal did, his Pezotettix plebejm 

 and rusticus. The combination of such peculiarities as the long- 

 antennae and strongly transverse subgenital plate of the male with 

 the long and parallel- sided prouotum of both sexes serves to distin- 

 guish it from Melanoplus, as here limited; while the strongly banded 

 sides of the body and the long and clepsydral cerci of the male in all 

 the species mark it as a peculiar type even if these markings and form 

 of genitalia do occur in certain species of the diversified genus 

 Melanoplus. 



Three species are known and appear to be confined almost entirely to 

 our Atlantic and Gulf borders, though some of the species occur as far 

 inland as Indiana, Ohio, and Michigan. It is unknown west of the 

 Mississippi, except in Louisiana and Texas (though Professor Bruner 

 suspects its presence in Nebraska). They inhabit moist places. 



The type is P. floriclana. 



ANALYTICAL KEY TO THE SPECIES OF PAROXYA. 



A 1 . Antennae and cerci of male relatively short; fnrcnla of male consisting of a 



pair of triangular plates; teguiina at least as long as body 1. atlantica (p. 382). 



A-. Antennae and cerci of male relatively long; furcula of male consisting of a pair 



of subequal ringers; tegmina variable. 



ft 1 . Furcula coarse, heavy, and depressed, generally straight; supraanal plate 



short triangular; tegmiua much shorter than body 2. hoosicri (p. 382). 



6*. Furcula relatively slender, cylindrical, often divergent; supraanal plate long 

 triangular ; tegmina normally as long as body but very variable . 3. floridana(p. 383). 



