LOCUSTID^E. 271 



stripe lanceolate, extending from the tip of the horn between the eyes to 

 the hind border. Eyes round, prominent. Third and fourth joints of the 

 maxillary palpi about equal in length ; fifth much longer than the fourth. 

 Prothorax elongate, wilh the stripe widening very slightly from the fore 

 border to the hind border. Abdomen with a linear stripe, which is paler 

 near the tip, where there is a blackish patch ; apical appendages large. 

 Fore femora with two minute spines beneath, three beneath the middle 

 femora ; hind femora wilh one row of seven spines and with another of two; 

 four anterior tibia? with six spines on each side ; hind tibia? with four rows 

 of spines, most of which are in the two upper rows. Fore wings with many 

 tawny points and with a brown streak along the basal part of the interior 

 border; tympanum pellucid. Hind wings pellucid, a little shorter than 

 the fore wings; veins pale. Length of the body 10^ lines; expansion of 

 the fore wings 31 lines. 



a. Demerara. From Mr. Bowers' collection. 



12. XlPHIDIUM PR^ECIPUUM. 



Pallide testaceum; caput el prothorax nigro univittata ; frons obliqua ; 

 antennae fulvce, basi lestacece ; femora guatuor anteriora trispinosa ; 

 tibia quatuor anleriores biseriatirn spinosce ; alee anticce vitla postica 

 nigricante ; alee poslica diaphance. 



Pale testaceous, paler beneath. Head with a black lanceolate stripe 

 on the vertex and with a porrect obtuse spine extending from between the 

 eyes ; front oblique. Eyes prominent. Antennae tawny, testaceous at the 

 base. Prothorax with a broad black stripe, which is narrower in front. 

 Fonr anterior femora beneath with a single row of .three minute black- 

 lipped spines ; four anterior tibiae with five spines on each side beneath. 

 Wings much longer than the body. Fore wings with a blackish stripe 

 extending for less than half the length along the hind border. Hind 

 wings pellucid. Length of the body 9? lines ; of the fore wings 33 lines. 



The specimen described is mutilated. The spines on the anterior 

 tibia? are much stouter than those of X.fuscum and of X. fasciatum ; the 

 spine between the eyes is more porrect than that of X.fuscum and more 

 acuminated than that of X. fasciatum. 



a. Demerara. From Mr. Bowers' collection. 

 West Africa. 



13, XlPHIDIUM CONTINUUM. 



Foem. Viride, rufescente univittatum ; antenna picece, basi viridesj 

 oviductus fulvus^ arcuatus, abdomine multo brevior ; aloe anticce 

 pallide fuscce, villa subcostuli e guttis obscurioribus, apud coslam 

 diaphance viridi venosce ; alee posticce diaphante, longiores, fusco 

 venosa, apud costa- apicem subfuscescentes. 



Female. Grass-green, in structure like X. fuscum. Body with a 

 reddish stripe, which widens from between the antennae to the hind border 

 of the proihorax and is continued from thence to the lip of the abdomen. 

 Eyes livid. Antennae piceous, green at the base. Oviduct tawny, curved 

 upward, much shorter than the abdomen. Fore wings pale brown, with a 

 subcostal stripe of darker brown dots; costal space pellucid, with pale 



