LOCUSTID^. 451 



veins brownish; aveolets large, regular ; scapiilur vein parallel and approxi- 

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

 Hind winjis cinereous. Length of the bod} 18 Hues; expansion of the lore 

 wiufis 48 lines. 



a. Para. From Mr. Badgerl^'s collection. 



32. Meroncidius ruficornis. 



Mas. Ferriigineus, sat gracilis; cuvul anlice fulvum ; palpi testacei ; 

 anlennce riifm ; prot/iorax tubercidatits ; sli/li limc/i, cylindrici ; alee 

 anticce breviusculcE, margine inleriore rufo, venis leslaceo variis ; alee 

 posliccB nigricanles. 



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

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

 testaceous. Antennje red, ferruginous at the hase. Prollioriix tuherculate, 

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

 lonjjiludinal impressed line. Altdominal appendages piiuse ; cerci stout, 

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

 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 fioui the base to near the lip. 

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

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



a. ? 



33. Meroncidius indistinct us. 



Mas. Fulvus, sat gracilis; caput antice lulescens, verlicp viridescenle ; 

 prothorux luberculatus ; slyli graciles, cylhidrici ; pedes sat graciles ; 

 alee anticie cinerece, sat anguslte, fusco nolalce, testaceo reiiculalic et 

 venosce ; aUe posticcB nigricanles, fulvo venosct, 



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

 fiire part pale luteons ; front rather thinly punctured. Eyes reddish, very 

 prominent. Proihorax tuberculate, with two strongly impressed transverse 

 lines and with a slight longitudinal impressed line. Abdominal apjiendages 

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

 slender, cylindrical. Legs rather slender; spines with blick 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 testacecms ; areolets mostly large and regular; 

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

 diverges to the costa. Hind wings blackish ; veins tav\ny. Length of the 

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



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



34. Mekoncidids tessellatus. 



M.is. Fulvus, sat gracilis; vertex et proihorax ferruyinei ; prothorax 

 luberculatus ; pedes sat graciles ; alee anticee angusUe, pallide luteit, 

 venis lestaceis, fusco marginatis ; alee poslicec nigro-cinereec. 



