400 CATALOGUE OF 



5. ISOPTERYX? IiEUCOTHOALIS. 



Foem. Alba, gracilis; palpi subarcuati, oblique ascendentes, arti- 

 culo So distincto gracili brevissimo longi-conico ; antenna 

 valida, simplices, submoniliformes ; thorax nigro punctatus ; 

 abdomen attenuatum, alas posticas longe superans ; alee an- 

 gusta, fasciis cervinis indistinctis diffusis, lineis duabus fus- 

 cis undulatis interrupts, punctis marginalibus nigris ; anticce 

 punctis costalibus nigris ; posticce puncto costali nigro. 



Female. White, slender. Palpi obliquely ascending, slightly 

 curved ; third joint distinct, slender, elongate-conical, not more than 

 one-fourth of the length of the second. Antennae stout, simple, 

 submoniliform. Thorax with black points. Abdomen attenuated, 

 extending far beyond the hind wings. Wings narrow, with indis- 

 tinct and diffuse fawn-coloured bands, and with two more distinct 

 but interrupted undulating brown lines ; marginal points black. 

 Fore wings acute, with the lines terminating in black costal points. 

 Hind wings with a black costal point before the middle. Length of 

 the body 2£ lines ; of the wings 5 lines. 



a. United States. Presented by E. Doubleday, Esq. 



South America. 



A. Thorax nigro punctatus. 



A. Alae linea 3a valde sinuata. - - decostalis, Guen. 



B. Ala? linea 3a minus sinuata. - apygalis, Guen. 



B. Thorax non punctatus. 



A. Ala? anticae cervinae. - - - multiplicalis, Guen. 



B. Alae cinereo-albae. - tenellalis, Guen. 



6. ISOPTERYX MULTIPLICALIS. 



Mas. Cervina ; palporum articulus Sus brevis, truncatus ; abdo- 

 men albidum, fusco conspersum ; alee non sinuatce, linea mar- 

 ginali fusca, fimbria alba antice nigro notata ; anticce albo 

 semihyalino varies, lineis tribus venisque fuscis ; posticce sor- 

 dide albce, apice venisque pallidissime fuscis, lineis duabus 

 fuscis arcuatis denticulatis, interiore interrupta. 



Isopteryx multiplicalis, Guen. Delt. et Pyral. 227, 194. 



Brazil. 



