LEP1D0PTERA HETEROCEBA. 585 



COSSUS TENEBRIFER. 



Mas et fcera. Nigro-fuscus, subtus ferrugineo-rufus; caput et 

 thorax cyaneo svffusa ; antennce subserratcc ; abdomen ferru- 

 gineo-rufum ; alee anticce nigro reticulata, albo subconspersce, 

 vittis duabus indeterminatis nigris ,• postica ferrugineo- 

 rufce. 



Male and female. Blackish brown, ferruginous-red beneath. 

 Palpi porrect, not extending beyond the head. Antennae minutely 

 serrated. Head and thorax with a deep blue tinge. Abdomen 

 ferruginous-red, extending for half its length beyond the hind wings. 

 Fore wings slightly speckled with white, reticulated with black ; 

 two irregular interrupted black stripes. Hind wings ferruginous- 

 red. Length of the body 18 — 30 lines; of the wings 40—66 

 lines. 



a, b. Moreton Bay. From Mr. Diggles' collection. 



COSSUS BIPUSTULATUS. 



Mas. Nigricans ; caput atrum ; proboscis vix conspicua ; palpi 

 graciles, breves ; antenna? vix serratce; thorax atro bivittatus ; 

 abdomen alas posticas longe superans ; alee anticce atro reticu- 

 lata et unimaculatce ; posticce fuscce, subreticulata. 



Male. Blackish. Head deep black. Palpi porrect, smooth, 

 slender, short. Proboscis rudimentary. Antennae hardly serrated. 

 Thorax with two deep black stripes. Abdomen extending much 

 beyond the hind wings. Fore wings irregularly reticulated with 

 deep black ; a deep black spot at the end of the discal areolet. 

 Hind wings brown, indistinctly reticulated with darker brown. 

 Length of the body 16 lines ; of the win^s 36 lines. 



a. Australia. From Mr. Darnel's collection. 



COSSUS LIGATUS. 



Foem. Cinereo-fuscus ; palpi brevissimi ; antennce graciles ; tibia 

 postica calcaribus quatuor longis ; alee obscure cinerece, longa, 

 subacuminatce ; antica strigis plurimis transversis fuscis. 



Female. Cinereous-brown, dark cinereous beneath. Palpi 

 extremely short. Antennae slender. Abdomen extending much 

 beyond the hind wings. Legs slender, slightly pilose ; hind tibiae 

 with four long slender spurs. Wings dark cinereous, long, rather 



