LOCUSTID.E. 475 



three spines each and one with two ; hind libice with eight minute spines 

 on eaeli side and with two beneath ; tarsi slender. 



Allied to Gryllacris. 



1. Penalva lateralis. 



Mas. Picea, sublus testacea ; caput lestaceum, plaqa apnd verticem 

 magna picea strigam testaceam incladenle ; palpi pallide testacei ; 

 antenna picecB, basi testacea; prolhorax teslaceo sorclido subnebulosus, 

 laleribus pallide iuteis"; pedes testacei, spinis apice nigris. 



Male. Piceoiis, testaceous beneath. Head testaceous ; a large piceous 

 patch on the vertex including a short testaceous streak, which proceeds 

 from the hind border. Eyes piceous. Palpi pale testaceous. Antennc-e 

 piceous, testaceous at the base. Prolhorax indistinctly mottled with dull 

 testaceous; sides pale luteous. Legs testaceous ; spines of the hind tibiee 

 with black tips. Length of the body 12 lines. 



a. Australia. Presented by the late Earl of Derby. 



Genus NOIA. 



Fccm. Corpus gracile, fere lineare. Caput valde convexura, prolho- 

 vace paullo latius, antice nitens, vertice anlice et fronte supra lanceolalis 

 contiguis. Oculi paivi, prominnli, fere rotundi. Palpi maxillares graciles ; 

 articulus 5us subclavatus, 3o longior, 4o plus duplo longior. Antennae 

 longffi, graciles. Prothorax longiusculus, transverse bisulcatus, margine 

 antico lateribusque fere rectis, margine postico snhrotundato. Oviductus 

 arcuatus, serralus, abdominis dimidio longior. Pedes graciles, femoribus 

 libiisque spinulosis. Alee auticce valde deflexse, abdomen paullo superantes. 

 Alee posticae nullae ? 



Female. Body slender, nearly linear, not shining. Head a little 

 broader than the prothorax, very convex above ; fore part shining ; vertex 

 and front lanceolate, where they are contiguous between the antenute, which 

 are approximate to each other. Eyes nearly round, small, promiuent. 

 Maxillary palpi slender ; fourth joint more than half the length of the third, 

 less than half the length of the fifth, which is subclavate. Antennae long, 

 slender. Prothorax elongate, with two transverse furrows, of which the 

 hinder one is angular ; an indistinct longitudinal furrow ; fore border and 

 hind border nearly straight; hind border slightly rounded. Sheaths of the 

 oviduct deep, curved upward, more than half the length of the abdomen, 

 minutely serrated beneath and more strongly serrated above and at the lip. 

 Legs slender ; femora and four anterior tibiae with two irregular rows of 

 minute spines ; hind femora slightly incrassated for half the length from 

 the base ; hind tibiae with two rows of small spines above and with a few 

 smaller spines beneath. Fore wings much deflexed on each side, extending 

 a little beyond the lip of the abdomen ; veins between the scapular and the 

 costa regular, numerous, oblique, connected towards the base by a few 

 veinlets. Hind wings not developed. 



