ACRIDIDjE. 759 



llie white lines diverging from the first transverse furrow to the hind 

 border, which is rounded ; a white oblique streak on each side between the 

 second transverse furrow and the hind border; two white marginal stripes. 

 Pectus with two white oblique streaks on each side. Abdomen testaceous, 

 as long as the hind femora, the latter with a whitish-bordered disk on the 

 outer side. Hind tibiae a little shorter than the hind femora. Fore wings 

 pale cinereous, with two lanceolate grass-green stripes, with a row of black 

 dots between the stripes and with several exterior blackish dots. Hind 

 wings pellucid. Length of the body 9^ lines; expansion of the fore wings 

 17 lines. 



The lateral keels are more divergent than those of S. gratiosus and the 

 hind part of the disk is broader. 



a. Santarem. From Mr. Bates' collection. 



52. STENOBOTHRUS COSTALIS. 



Mas. Viridis ; caput et prothorax fusco bilineata ; caput rufo 

 bilineatunii fastigio subtriangulari sulcis lateralibus linenribus ; 

 antenna fulvce, plance, subselacece ; prothorax disco rufencente^ 

 carinis lateralibus albidis sub/lexis; femora postica subtus fusees- 

 centia ; alee anticce fulvce, villa costali viridi, lituris nonnullis dis- 

 calibus fuscescentibus ; alte posticce diaphance. 



Male. Pale green. Head and prothorax with two brown lines which 

 border the lateral whitish keel of the latter. Head with two red lines 

 which diverge to the hind border from between the eyes ; tip of the vertex 

 depressed, nearly triangular, its breadth slightly exceeding its length ; 

 lateral furrows linear; front slightly oblique, with four slight diverging 

 keels, the inner pair connected and forming a ridge between the sockets of 

 the anteume. Antennae tawny, slightly setaceous and flattened, a little 

 longer than the prothorax. Prothorax with a reddish disk ; keels very 

 slight; lateral keels very slightly curved inward, approximating from the 

 lore border to the first transverse furrow ; hind border rounded. Hind 

 femora brownish beneath, a little longer than the abdomen, which is tawny. 

 Fore wings tawny, with a grass-green costal stripe ; some brownish marks 

 along the hind side of the latter. Hind wings pellucid. Length of the 

 body 8 lines; expansion of the fore wings 16 Hues. 



a. Brazil. Presented by Sir C. Stewart. 



53. STENOBOTHRUS CONCINNULUS. 



Mas. Viridis; caput et prothorax albido nigroque bivittata; fastigium 

 conicum, depressum, sulcis laleralibus vix conspicuis ; antennce 

 testaeece, lonyiusculcc, apice fuscescentes ; prothorax carinis laterali- 

 bus sub/lexis, margine postico rolundalo ; abdomen vittis duabus 

 basalibus nigricantibus ; alee antica> fuscce, villa postica lanceolata 

 viridit costa ba.fi dilalata ; alee postica diaphana, apice fuscce, striga 

 costali niyro-fusca. \ 



Male. Grass-green. Head and prothorax on each side with a 

 whitish stripe and with a broader exterior black stripe. Head with the 

 whitish stripes lanceolate, bordering the inner side of each eye; tip of the 



