714 CATALOGUE OF 



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

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

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

 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 wings pellucid; veins black, whitish towards 

 the base and along the 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. 

 Ommatolarapis, Burm. Handb. Ent. ii. 636. Sauss. 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. \. 2, 703. Stall, Saut. et 

 Grill, pi. 8 b. f. 28 Gryllus perspicillatus, Fabr. Ent. Syst. i\. 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 stout. 



a. Hind tibiae luteous. .... morosus. 



b. Hind tibiae red. - - cervinus. 



B. Body slender. - includens. 



1. PLATACANTHUS MOROSUS. 



Fcem. Sordide fulvus, robustus ; caput et prothorax nigricante quadri- 

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

 notatis, fasligio truncato-conico ; prothorax subtiliter scaber, disco 

 subtricarinato fere piano ; prosterni spina pallide testacea, transversa, 

 incisa ; pedes piceo notali^femoribus posticis latis abdomini cequi- 

 longis intus luteis nigro late vittatis, tibiis posticis luleis nigro 

 strigatis ; alee anticce cinerece, abdomine breviores, plagis maculisque 

 e venis nigricantibus. 



