LOCUSTIDjE. 451 



veins brownish ; areolets large, regular ; scapular vein parallel and approxi- 

 mate to the externo-medial till near the tip, where it diverges to the costa. 

 Hind wings cinereous. Length of the body 18 lines; expansion of the fore 

 wings 48 lines. 



a. Pura. From Mr. Badgerly's collection. 



32. MERONCIDIUS RUFICORNIS. 



Mas. FerrugineuSy sat gracilis ; caput anlice fulvum ; palpi testacei ; 

 antennae rvfce ; prothorax tuberculatus ; styli lonyi, cylindrici ; alee 

 anticce breviusculce, margine interiore rufo, venis testaceo variis ; al<e 

 postic(B nigricantes. 



Male. Ferruginous, rather slender. Fore part of the head tawny ; 

 front thinly punctured. Eyes whitish, prominent, nearly round. Palpi 

 testaceous. Antenna3 red, ferruginous at the base. Prothorax tuberculate, 

 with two strongly impressed transverse lines, between which there is a slight 

 longitudinal impressed line. Abdominal appendages pilose; cerci stout, 

 lanceolate. Styles of the subgenital lamina long, cylindrical. Legs stout ; 

 spines testaceous, with black tips; hind femora a little shorter than the 

 lore wings. Fore wings not extending to the tip of the abdomen ; interior 

 border red; veins partly testaceous; areolets mostly large and regular; 

 scapular and externo-medial converging from the base to near the tip. 

 Hind wins blackish, a little shorter than the fore wings. Length of the 

 body 17 lines; expansion of the fore wings 24 lines. 



33. MERONCIDIUS INDISTINCTUS. 



Mas. FulvuSy sat gracilis; caput antice lulescens,vertice viridescente ; 

 prothorax tuberculatus; styli graciles, cylindrici ; pedes sat graciles ; 

 al<e anticce cinerece, sat angustce, fusco notat&y testaceo reticulatcc et 

 venoscB ; alee posticte nigricantes,fulvo venosce. 



Male. Tawny, rather slender. Vertex of the bead pale greenish ; 

 fore part pale luteous ; front rather thinly punctured. Eyes reddish, very 

 prominent. Proihorax tuberculate, with two strongly impressed transverse 

 lines and with a slight longitudinal impressed line. Abdominal appendages 

 pilose ; cerci curved, obtuse, very thick ; styles of the subgenital lamina 

 slender, cylindrical. Legs rather slender ; spines with black tips ; hind 

 femora a little less than two-thirds of the length of the fore wings. Fore 

 wings cinereous, rather narrow, with several small irregular brown marks ; 

 veins and reticulation pale testaceous; areolets mostly large and regular; 

 scapular vein parallel to the externo-medial till near the tip, where it 

 diverges to the costa. Hind wings blackish ; veins tawny. Length of the 

 body 17 lines; expansion of the fore wings 42 lines. 



a. Mexico or Brazil. From Mr. Argent's collection. 



34. MEBONCIDIDS TESSELLATUS. 



Mas. Fulvus, sat gracilis; vertex et prothorax ferruginei ; prothorax 

 luberculatus ; pedes sat graciles ; alee anlicce angusla, pallide lutea-, 

 venis testaceis, fusco marginatis ; alte posticce nigro-cinerece. 



