066 CATALOGUE OF 



indistinct darker dols in the disk; veins tawny or testaceous. Hind wings 

 pellucid, lurid at the lips; veins black, pale along the interior border. 

 Length of the body 21 lines; expansion of the fore wings 42 lines. 



a. China. Presented by G. T. Lay, Esq. 



b. Hong Kong. Presented by J. C. Bowring, Esq. 



23. HETERACBIS APTA. 



Fo3m. Testacea, gracilis ; caput et prothorax fulva, piceo late bivittata ; 

 fasligium conicum; prothorax subtricarinatus, subtiliter scaber ; 

 proslerni spina gracilis, acuta, subcompressa, subobliqua; alee antic<e 

 angustte, pallide cinerete, corpori aquilongae. 



Female. Testaceous, slender. Head above and prothorax tawny, 

 with a broad piceous stripe on each side. Head smooth; tip of the vertex 

 depressed, conical; front largely punctured; keels well defined; inner 

 keels parallel ; outer keels diverging slightly towards the face. Eyes ferru- 

 ginous, elliptical. Prothorax finely scabrous, excepting the two calli on 

 each side; middle keel very slight; lateral keels slight; transverse 

 impressed lines distinct; fore border very slightly rounded ; sides and hind 

 border much more rounded. Prosternal spine slender, acute, slightly 

 compressed and oblique. Hind femora rather longer than the abdomen ; 

 hind tibiae much shorter than the hind femora, their spines with black tips. 

 Fore wings narrow, pale cinereous, as long as the body; veins testaceous. 

 Hind wings pellucid; veins black, white at the base and along the interior 

 border. Length of the body 1 1 lines ; expansion of the fore wings 

 26 lines. 



a. Silhet. From Mr. Sowerby's collection. 



24. HETERACEIS STRAMINEA. 



Fcem. Straminea, gracilis; caput et prothorax fusco bivittata; caput 

 longiusculum, fastigio piano subtriangulari, fronte obliqua ; pro- 

 thorax subtilissime scaber, disco fere piano sublricarinato ; prosterni 

 spina acuta, subtransversa, mesosternum atlingens; alee anticce albidte, 

 corpore breviores, patlido venosce. 



Female. Straw-colour, slender. Head and prothorax with a brown 

 stripe, extending from each eye to the base of the fore wing. Head 

 smooth, elongate ; tip of the vertex flat, subtriangular ; front oblique, 

 thinly punctured; keels distinct; inner keels nearly parallel; outer keels 

 diverging towards the face. Eyes elongate-oval, their disks piceous. 

 Prothorax very finely scabrous ; disk nearly flat, with three extremely 

 slight keels; transverse impressed lines distinct; fore border nearly 

 straight; sides slightly rounded ; hind border much rounded. Prosterual 

 spine acute, slightly transverse, extending to the fore border of the meso- 

 sternum. Hind femora as long as the abdomen ; hind tibia? a little shorter 

 than the hind femora, their spines with black tips. Fore wings whitish, 

 rather shorter than the body ; veins pale testaceous, a few of them tawny. 

 Hind wings pellucid ; veins black, pale testaceous towards the base and 

 along the interior border. Length of the body 13 lines; expansion of the 

 fore wings 24 lines. 



a. China, Presented by G. T. Lay, Esq. 



