714 CATALOGUE OF 



nearly straight; sides and bind border slightly rounded. Prosternal spiue 

 testaceous, thick, transverse. Hind femora a little longer than the abdo- 

 men ; hind tibiae rather shorter than the hind femora, their spines wilh 

 black tips. Fore wings pale cinereous, nearly as long as the body, with a 

 pale green stripe, and with an anterior brown streak which is accompanied 

 by two whitish dots. Hind wiugs ptliucid ; veins bhick, whitish towards 

 the base and along ihe interior border. Length of the body 8 lines; expan- 

 sion of the fore wings 14 lines. 



Allied to the genus Heteracris. 



a. ? From Mr. Children's collection. 



Genus 34. OMMATOLAMPIS. 

 Ommatolampis, Burm. Handb. Ent. ii. Q'i6. Sams. Rev. Zool. xi. 393. 



1. Ommatolampis variegata. 



Acridium variegatum, Deg. Ins, iii. pi. 42, f. 8 — Ommatolampis variegata, 

 Burm. Handb. Ent. ii. 637. 



Brazil. Surinam. 



2. Ommatolampis nodicollis. 

 nodicollis, Burm. Handb. Ent. ii. 637. 

 Brazil. 



3. Ommatolampis perspicillata. 



Gryllus (Locusta) perspicillata, Linn. Syst. Nat. i. 2, 703. Stoli, Saul, et 

 Grill, pi. 8 b. f. 28— Gryllus perspicillatus, Fabr. Ent. Syst. ii. 62— 

 Ommatolampis perspicillata, Burm. Handb. Ent. ii. 637. 



Brazil. 



Genus 35. PLATACANTHUS. 



P. morosus may be considered as the type of this genus, which is 

 characterized by a bilobed or forked prosternal spine. 



A. Body slout. 



a. Hind tibiae luteous. _ . . . morosns. 



b. Hind tibije red. ---._. cervinus. 



B. Body slender. . _ - _ . includens. 



1. Platacanthus morosus. 



Foem. Sordide fulvus, robustus ; caput et prothorax nigricante qnadri- 

 vittata ; caput breve, strigis duabus lanceolatis piceis, lateribus albido 

 notatis, fastigio iruncalo-conico ; prothorax siibtiliter scaber, disco 

 subtricarinato fere piano ; prosterni spina patlide leslacea, transversa, 

 incisa ; pedes piceo nolati, feynoribus posticis latis abdomini cequi- 

 longis intus luteis nigra late viltalis, tibiis posticis luteis nigra 

 strigatis ; alee anlicce cinerece, abdomine breviores, plagis tnaculisque 

 e venis nigricantibus. 



