LEPIDOPTERA HETEROCERA. 449 



Nearly allied to the preceding genus, from which it may be 

 distinguished by its crested abdomen. 



Certila flexuosa. 



Mas. Cinerea, nigra conspersa ; caput et thorax anticus nigro 

 cinerea ; thorax nigro vittatus ; abdomen nigro cristatum ; 

 alee anticce fascia antemedia lata nigricante nigro marginata 

 lituras pallidas includente, linea exteriore flexa nigra, spatio 

 marginali migricante lineam cineream indeterminatum in- 

 cludente ; postica linea exteriore undulata spatioque marginali 

 nigro-cinereis. 



Male. Cinereous, black-speckled, paler beneath. Head 

 and fore part of the thorax blackish cinereous. Antennae 

 blackish. Thorax with a slender black stripe. Abdomen with 

 blackish crests. Tarsi with black bands. Fore wings before 

 the middle with a broad blackish black-bordered band, which 

 includes some pale marks, and is dilated along the interior border 

 and towards the base of the costa ; an exterior outward-bent black 

 line, which is very oblique towards the interior border ; space 

 between this line and the exterior border blackish, including a very 

 incomplete cinereous line. Hind wings speckled; exterior un- 

 dulating line and marginal space blackish cinereous. Length of 

 the body 6^—7 lines; of the wings 15 — 16 lines. 



a, b. North America. From Mr. Carter's collection. 



Genus MISOGADA. 



Mas. Corpus robustum. Proboscis nulla. Palpi porrecti, 

 brevissimi ; articulus 3us minimus. Antennae pectinatae, apice 

 setulosae. Abdomen lineare, alas posticas longe superans ; 

 fasciculus apicalis subquadratus. Pedes breves, graciles, femoribus 

 tibiisque late fimbriatis ; pedes antici densissime pilosi; tibiae 

 posticae calcaribus quatuor longis. Alae spissae, subelongatae ; 

 anticse subacutae, vitta basali subtus lanuginosa, margine exteriore 

 convexo sat obliquo. 



Male. Body stout. Proboscis obsolete. Palpi porrect, very 

 short, not extending to the front of the head ; 3rd joint extremely 

 small. Antennae moderately pectinated, setulose at the tips. Ab- 

 domen linear, extending much beyond the hind wings ; apical tuft 

 subquadrate. Legs short, slender; femora and tibiae broadly 

 fringed ; fore legs very densely pilose ; hind tibiae with four long 

 spurs. Wings thickly clothed, slightly elongate, moderately broad. 



