404 CATALOGUE OF 



14. ISOPTERYX? IMPULSALIS. 



Mas. Cervina, cinereo varia : antenna; serrata, corpore vix bre- 

 viores ; alee angustce^ nigro conspersce, fasciis duabus obliquis 

 devils abbreviatis nigricantibus albo extus marginatis, punctis 

 marginalibus nigris, fimbria alba apice cinerea ; anticce ma- 

 cula discali transversa albida. 



Male. Fawu-eolour, partly cinereous, more cinereous beneath. 

 Antennse serrated, nearly as long as the body. Abdomen extending 

 somewhat beyond the hind wings. Wings narrow, speckled with 

 black, with two oblique blackish bands, which are more or less ab- 

 breviated and irregular in front, and are irregularly bordered with 

 white on the exterior side ; marginal points biack, irregular ; fringe 

 white, partly cinereous exteriorly. Fore wings with a transverse 

 semicircular whitish spot representing the reniform mark. Length 

 of the body 2J- lines ; of the wings 6 lines. 



a. Ceylon. From Mr. Stevens' collection. 



15. ISOPTERYX? ABNEGATALIS. 



Mas et fcem. Lutea ; palpi aseendentes, obtusi, articulo So 

 minimo ; antenna , albida, valida, submoniliformes ; thorax 

 chalybeo bifasciatus ; abdomen fasciis abbreviatis nigris ; ala 

 fasciis deviis obliquis arcuatis nigro -cinereis chalybeo ornatis 

 puncta elongata flava includentibus. 



Male and female. Luteous, yellow beneath. Palpi ascending, 

 obtuse ; third joint very small. Antennae whitish, stout, submonili- 

 forin. Thorax with two chalybeous bands. Abdomen with abbre- 

 viated blackish bands. Wings with irregular oblique curved cine- 

 reous blackish bands, whose disks are chalybeous and contain 

 transverse elongated yellow points. Hind wings with fewer and 

 more incomplete bands than those of the fore wings. Length of the 

 body 3 lines ; of the wings 7 lines. 



a. Ceylon. Presented by K. Templeton, Esq. 

 b — g. Ceylon. From Mr. Stevens' collection. 

 h. Moreton Bay. From Mr. Diggles' collection. 



This or the following species may be identical with I. plum- 

 balls, but hardly accord with GueneVs description. 





