LOCTJBTIUjE. 287 



Abdomen fusiforme. Oviductus vix arcuatus, abdomine longior. Pedes 

 sat graciles; femora qualuor anteriora trispinulosa ; femora postica bi- 

 serialim spinulosa; tibiae quatuor anteriores biseriatim spinosae ; tibiae 

 postica? quadriseriatim spinuloss. Ala? antica? couferte reliculata3. Ala? 

 postica; paullo breviores. 



Female. Body slender, convex, smooth, shining. Head a little nar- 

 rower than the prothorax, wiih a little porrect obtuse keeled horn between 

 the eyes; front slightly oblique, thinly punctured. Eyes large, nearly 

 round, very prominent. Third joint of the maxillary palpi a little longer 

 than the fourth; fifth snbclavate, very much longer than the third. An- 

 tennae slender, much longer than the body ; first joint long, stout, dilated 

 on the inner side towards the tip. Prolhorax with three slight transverse 

 furrows; sides nearly straight; hind border slightly rounded. Abdomen 

 fusiform. Oviduct hardly curved, longer than the abdomen. Legs rather 

 slender; a spine on each of the fore coxae; four anterior femora with a 

 single row of three minute spines ; hind femora with two rows of several 

 minute spines; four anterior tibiae with from five to six rather small spines 

 on each side; hind tibiae with four rows of numerous minute spines. 

 Wings longer than the body. Fore wings thickly reticulated, a little longer 

 than the hind wings. 



The short spines of the fore legs distinguish this genus from 

 Locusta. 



1. NlCSARA TRIGONALIS. 



Fcem. Testacea ; caput nigro sexlineatum, fronte nigra maculam stri- 

 gasque duas testaceas includente, labro luteo ; antenna nigrce, articulo 

 10 testaceo nigro-vittato ; prothorax vittis duabus nigricantibus tes- 

 laceo conspersis pnslice furcatis et connexis, litura intermedia fusca 

 cruciformi ; femora nigro conspersa ; femora postica nigro bifasciata 

 et univittala; tibice basi nigrce ; tibia quatuor anteriores supra nigro 

 conspersts ; alee cinerecs ; aloe antica fusco varies, albido venosce; ala 

 posticce nigro venosce. 



Female. Testaceous. Head above with six longitudinal black lines, 

 which are united in front; front black, with a triangular testaceous spot in 

 the disk and with a short testaceous streak on each side ; labrum luteous. 

 Eyes piceous. Antennae black ; first joint testaceous, striped with black. 

 Prothorax with two irregular blackish stripes, which are speckled with tes- 

 taceous and are forked and united hindward ; an intermediate brown cruci- 

 form mark. Femora speckled with black; hind femora with a black stripe 

 on the outer side and with two black bands, the first beyond the middle, the 

 second apical; tibia? black at the base; four anterior tibiae speckled with 

 black above. Wings cinereous. Fore wings speckled and dotted and 

 partly clouded wiih brown; veins whitish. Hind wings with black veins. 

 Var. (3. Triangular spot on the front of the head nearly obsolete. Length 

 of the body 14 lines ; expansion of the fore wings 44 lines. 



a. Port Essington. Presented by the late Earl of Derby. 



b. Australia. Presented by the Haslar Hospital. 



