ACRIDKLE. 525 



flat, setaceous. Protliarax scabrous, with three transverse impressed lines 

 and with three slight keels, of which the pair are indeterminate; two broad 

 oblique yellow stripes on each side; hind part elongated and acute. Pro- 

 sleruum with a stout erect acute spine. Legs stout; four anterior legs 

 ferruginous, their tibiae with two rows of minute spines beneath ; hind 

 femora with angular transverse ridges along the outer side, the inner lower 

 keel minutely dentate ; hind tibiae with the spines on the inner side twice 

 the length of those on the outer side. Wings rounded at the lips, a little 

 shorter than the abdomen. Fore wings with a broad green costal stripe. 

 Length of the body 13 lines ; expansion of the fore wings 18 lines. 



o. Bogota. From Mr. Stevens' collection. 



18. XlPHOCERA ELEGANS. 



Mas. Viridis ; caput el prnt/iorax albido quadrimttata ; caput antice 

 conicum ; antenna albid<e, setacece, apice picece ; prolhorax conferte 

 et subtiliter punctatus, crisla luberculata, vittis inlerioribus nigri- 

 cante marginatis, margine postico producto peraculo ; prosternum 

 spina flexa obtusa ; femora, postica supra biseriatim tuberculata , 

 subtus biseriatim spinulosa ; tibice quatuor anteriores subtus 

 biseriatim spinulosce ; alts anlicce apice rotundala, villa postica 

 albida lanceolata abbreviata ; alee posticce patlide virides. 



Male. Grass-green, slender. Head and prothorax with two whitish 

 stripes above on each side. Head smooth, conical in front of the eyes ; 

 front rather oblique, with four keels, the inner pair slightly diverging 

 towards the mouth. Eyes piceous, oblique, elongate-elliptical, prominent. 

 Antenna3 whitish, Hat, setaceous, not dilated, longer than the prolhorax, 

 piceous towards the tips. Pruthorax thickly and minutely punctured, with 

 a tuberculated crest which is slightly interrupted by the three transverse 

 impressed lines; hind part much elongated, very acute; a tuberculated 

 blackish line along the outer side of each inner stripe. Prosternum with a 

 bent compressed obtuse spine. Hind femora with minute tubercles on the 

 two upper keels and minute spines on the two lower keels; four anterior 

 tibia? with two rows of minute spines beneath; spines of the hind tibiae 

 with black tips, those on the inner side twice longer than those on the outer 

 side. Wings with rounded tips. Fore wings with a whitish tapering stripe 

 extending along the hind border for more than half the length from the 

 base. Hind wings diaphanous, rather shorter, tinged with pale green ; 

 veins pale green. Length of the body 35 lines ; expansion of the fore 

 wings 21 lines. 



a. British Guiana. Presented by Sir R. Schomburgck. 



b. Para. Presented by R. Graham, Esq. 



19. XlPHOCERA AZUREIPENNIS. 



Xiphicera azureipennis, Serv. Hist. Orth. 616, pi. 14, f. 4. 

 Java. 



