284 LEPIDOPTERA HETEROCERA. 



3. Ctenucha venosa. 



Fusca, subtus nigra; caput et thorax antice maris rufo, foeminse 

 flavo-hirta ; thorax flavo bivittatus ; ala antica albido 

 UneatcB ; poslicce et abdomen maris cyanea, fceminae nigri- 

 cantia. 



Lithosia venosa, MSS. 



Dark brown, black beneath. Head and fore part of the thorax 

 clothed with bright red hairs in the male, and with yellow hairs in 

 the female. Antennas of the male rather deeply, of the female mo- 

 derately pectinated. Thorax with two yellow stripes. Wings 

 fringed with white, moderately broad. Fore wings with four yel- 

 lowish white stripes; first costal ; second short, near the tip ; third 

 and fourth, the third forked near the tip. Hind wings and abdo- 

 men of the male dark blue, of the female blackish. Length of the 

 body 5^—6 lines ; of the wings 15 — 16 lines. 



a t p Presented by E. Doubleday, Esq. 



b. Venezuela. From M. Becker's collection. 



c. Mexico. From Mr. Glennie's collection. 



4. Ctenucha ruficeps. 



Cyanea ; capitis vertex et prothorax subtus coccineo-hirti ; palpi 

 basi coccinei ; thorax tegulis duabus lateralibus ; humeri albi ; 

 pedes subtus albi ; ala nigro-fusca, basi cyanea?, ex parte albo 

 ciliata ; antica costa vittaque discali interrupta albis ; postica 

 vitta basali discali alba. 



Blue. Head above and thorax in front beneath clothed with 

 crimson hairs. Palpi black, with crimson hairs towards the base. 

 Proboscis black. Thorax with a lappet on each side, and a white 

 spot on each shoulder. Legs white beneath. Wings blackish 

 brown, blue at the base. Fore wings with a white costa, and 

 a white interrupted stripe extending from the base to near two- 

 thirds of the length in the disk. Hind wings with a white discal 

 stripe tapering from the base to half the length. Length of the 

 body 5^ lines ; of the wings 14 lines. 



a. Mexico. From M. Hartweg-'s collection. 





