204 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



thorax, horizontally porrected ; second joint dilated above with 

 compressed scales, broadest before middle ; terminal joint very 

 long, slender, filiform. Maxillary palpi of $ ending in a long 

 tuft, concealed between labial palpi ; of $ short, filiform. Fore 

 wings almost parallel-sided, costa straight, curved just before 

 apex, hind margin moderately oblique ; hind wings moderately 

 broad, indented before apex. Fore wings with 11 veins ; 4 and 

 5 separate. Hind wings with 8 veins ; 2 rising before posterior 

 angle of cell ; 3 and 4 unstalked from posterior angle of cell. 



Besides the three Australian species here described, only one 

 other species of this genus is known ; which, however, possesses 

 a wide range, extending over great part of Europe and America. 

 All the species have a considerable general resemblance. 

 A. Costal edge wholly white .. ... .. 1. sinceretta. 



B. ,, above white streak fuscous 



a. Fore wings dark slate grey ; metallic 



border of first line continuous .. ... 2. Behrii. 



b. ,, pale greyish ochreous-brown ; 

 border forming three separate circular 

 spots .. ... .. ... ..3. chry sopor ella. 



Et. sincerella n. sp. 



14" Head yellow-ochreous, forehead brassy-metallic. Labial 

 palpi more than twice as long as head, brassy-ochreous, mixed 

 on sides and at apex with dark fuscous scales ; tuft of maxillary 

 palpi of ( nearly as long as second joint of labial palpi, 

 yellowish-ochreous. Antennas of $ thickened, minutely ciliated, 

 brownish-ochreous, above barred with white, with a large tuft of 

 hair-scales, blackish above, whitish towards base, in sinuation. 

 Thorax white, becoming ochreoiis-grey on sides and in front. 

 Abdomen silvery- white, posterior margin of segments whitish- 

 ochreous. Legs silvery white, tarsi infuscated beneath. Fore 

 wings elongate, tolerably broad, slightly dilated, hind margin 

 oblique, slightly rounded ; pale greyish-ochreous, becoming 

 darker clearer ochreous towards costal streak, thinly sprinkled on 

 veins with greyish-fuscous ; a tolerably broad pure white costal 

 streak from base to apex, margined at base and apex beneath by 

 short d.rk fuscous cloudy streaks ; an indistinct cloudy greyish- 



[30] 



