LOCUSTID.E. 287 



Abflomeii fiisifonne. Oviductus vix arcuatus, abdomine lonj^ior. Pedes 

 bial giaciles; femora quaiuor anteiiora trispinulosa ; feinoia poslica bi- 

 seiiatim spinulosa; lihife quaiuor anteriores biseriatim spinosap ; libigB 

 posticae quadriserialim spinulosis. Alee anticce couferte reiiculatae. Alte 

 posticae paullo breviores. 



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

 rower than ibe protliorax, wiih a liitle porrect nl)tuse keeled horn between 

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

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

 than the fourth; fifih subclavate, very much longer than the third. An- 

 tennae slender, much longer than the body ; first joiut 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; f(mr 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. NiCSARA TRIGONALIS. 



Foem. Testacpu ; caput nigra sex lineaiuni, f rente nigra maculam stri- 

 gasqne dims teslncens includente, labro luteo ; nntennce nigra, articulo 

 lo testaceo nigm-vittato ; prolhorax vitiis dwtbns nigricantibus tes- 

 taceo conspersis postice furcatis el connexis, iilura intermedia fusca 

 cruciformi ; femora nigro conspersa ; femora postica nigra bifasciata 

 el nnivittata ; tibice basi nigrce ; tibiae quaiuor anteriores supra nigra 

 consperscp ; alee einerecB ; alee anticcB fusco varicc, albido venasce ; alee 

 posticce nigra 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. Antenna? black ; first joint testaceous, striped with black. 

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

 taceous and are Ibrked and united hiudward ; 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; tibiae black at the base; four anterior tibiae speckled with 

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

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

 Far."^.— Triangular sj)ot on the front of the head nearly obsolete. Length 

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



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



b. Ausiralia. Presented by the Haslar Hospital. 



