668 CATALOGUE OF 



obliqui. Antennae graciles, prothorace valde longiores. Prothorax vix 

 carinatus, poslice sublatescens, lineis quatuor transversis impressis, margine 

 postico valde rotundato. Prosterni spina robusta, brevis, subobliqua. 

 Pedes graciles. Alae antica? corpori aequilongae. 



Male. Body very slender. Head and prothorax finely scabrous. 

 Head rather long; tip of tbe vertex flat, conical, very prominent; front 

 oblique; keels well defined, parallel. Eyes elliptical, oblique. Antennae 

 slender, very much longer than the prothorax. Prothorax slightly widening 

 hind ward ; keel extremely slight, only apparent towards the hind border ; 

 the usual four transverse impressed lines distinct; fore border and sides 

 slightly rounded; hind border much rounded. Prosternal spine stout, 

 short, slightly oblique. Legs slender ; hind femora longer than the abdo- 

 men ; hind tibia? somewhat shorter than the hind femora. Fore wings as 

 long as the body. 



26. HETERACRIS TENUIS. 



Mas. Pallide testacea; prothorax rufo bivittalus ; alee anticce diaphance, 

 albido venosce, apud costam rufo venosa. 



Male, Pale testaceous. Eyes ferruginous. Prothorax with a red 

 stripe on each side. Wings pellucid. Fore wings with whitish veins, 

 except along the costa for more than half the length, where they are red. 

 Hind wings with the veins mostly blackish. Length of the body 7 lines; 

 expansion of the fore wings 16 lines. 



o. China. Presented by J. C. Bowring, Esq. 

 6 d. China. Presented by G. T. Lay, Esq. 



Group. ? 



27. HETERACRIS? ROBUSTA. 



Acridium robustum, Serv. Hist. Orth. 647 Caloptenus (Div. 2) robustus, 

 Sauss. 



China. 



28. HETERACRIS? ALACKIS. 



Acridium alacre, Serv. Hist. Orth. 682 Caloptenus (Div. 2) plorans, 

 Sauss. 



Hindostan. 



Australasia. 



A. Fore wings not dilated at the base. 



a. Hind femora not black at the tips. ... antica. 



b. Hind femora with black tips. gavisa. 



B. Fore wings dilated at the base. - - simplex. 



29. HETERACRIS ANTICA. 



Fcem. Testacea, gracilis; fastigium conicum ; antenna graciles, pro- 

 thorace multo longiores ; prothorax tricarinatus, subtiliter scaber ; 

 prosterni spina gracilis t acuta, subcompressa, subobliqua ; alee anticce 

 angustcB, pallidce cinerece, corpore paullo breviores. 



