TIXEID.E. II.VTIIIA. 29-5 



which are of a sombre tint, with irregular longitudinal marks on the 

 inner margin ; the ascending and more distinct palpi of the males, 

 and drooping ones of the females, in which sex the wings are obtuse, 

 suflficiently indicate its distinctness from the foregoing and following 

 genera. 



Sp. 1. cereana. .ilis nnticis griseis, ad marginem viternum strigis longitudina- 

 lilus abbreviails puTpureo-fuscis. (Exp. Alar. $ 1 unc. 3 — t lin.; 'i 1 uiic 

 4—5 lin.) 



Ph. Ge. cereana. Linne. — Ph. Ti. mellonelia. Donovan, v. viii. pi. 283. — 

 Ga. cereana. Steph. Catal. ii. 213. No. 7411. 



Anterior wings griseous, palest at the base and darkest on the hinder margin ; 

 near the inner are some abbreviated longitudinal purple-brown streaks; the 

 thorax is blackish behind, with a pale spot : posterior wings bright ashy- 

 grey, with the nervures and hinder margin dusky ; cilia ashy-white, with a 

 dusky or yellowish line at the base. The female has the anterior wings 

 darker than the male. 



Caterpillar flesh-colour, with a chestnut-brown head, and a palish line on the 

 back : it feeds in the hive of the Honey-bee (Apis mellifica) subsisting oii 

 the honey. 



Also a rare insect, but a considerable number of specimens have 

 been occasionally taken near Birch wood, others near Epping, and in 

 Devonshire and Norfolk, at the end of June, or beginning of July. 



Genus CCCLIX. — Ilythia, Latreille. 



Po/jBJ four; dissimilar in the sexes; in the males concealed within the scales 

 of the head ; maxillary triarticulate, with a large terminal joint, furnished 

 with very long scales; labial turned upwards, the two basal joints robust, 

 the terminal one spoonshaped, and armed with two bifid claws ; in the 

 females, the maxillary palpi are apparent, but enveloped in a tuft of long 

 scales, and the labial ones are considerably elongated, divergent, compressed, 

 porrected horizontally forwards, and with the terminal joint deflexed and 

 acute : maxillw short. Antenna: alike in the sexes, shortish, finely pubescent 

 within, with the basal joint very robust: head small, with a tuft of scales 

 in front: eyes moderate: wings convoluted during repose ; anterior rather 

 long and narrow, rounded on the hinder margin, of dissimilar habit in the 

 sexes, being narrowed and with the costa somewhat arched in the males, 

 and broad, with a straight costa, in the females ; posterior ample, and much 

 folded : cilia short : body rather long, cylindric and obtuse in the males ; 

 depressed, with elevated sides, and rather acute at the apex in the females ; 

 in both sexes with a small tuft at the apex : legs moderate. 



The sexual disparity of the insects contained in this genus is very 



