456 Mr. E. Meyrick on some 



lighter, waved on lower half ; costal edge dark fuscous from base 

 to second line ; a small round black grey-centred spot in middle of 

 disc ; an indistinct dentate fuscous inwards-curved line from apes 

 to anal angle ; cilia rather dark fuscous, mixed with red. Hind 

 wings bright orange ; a moderate dark fuscous hind-marginal band, 

 attenuated towards apex, and more strongly towards anal angle ; 

 cilia reddish, towards anal angle ochreous-whitish ; towards inner 

 margin a deep longitudinal furrow on upper surface, filled with 

 dense hairs towards base. 



One specimen (Sayer). This appears to be very 

 distinct from any other species of which I can learn ; it 

 is allied to D. erotus. 



2. Deilcphila celerio, L. 

 One specimen {Sayer). 



COCHLIOPODID^. 

 Hydroclada, n. g. 

 Tongue rudimentary. Palpi moderate, subascending, densely 

 and somewhat roughly scaled. Antennae somewhat over one-half, 

 in (? bipectinated, towards apex simple. Legs densely rough- 

 scaled. Fore wings with vein 1 furcate at base, 2 from three- 

 fourths, 7 and 8 out of 9, 10 out of 9 near base, forked parting- vein 

 well-developed. Hind wings with la, 16, Ic all present, 6 and 7 

 stalked, 8 connected with cell by a bar rather near base, six 

 variably branched (from simple to quadrifurcate) pseudoneuria 

 rising from it, parting-vein well-marked. 



The structures, -which I have here called pseudoneuria, 

 appear to me at present of a very doubtful nature. They 

 are chitinous thickenings, which have all the appearance 

 of true veins, but their large number renders it im- 

 possible to suppose that they can represent any portion 

 of the original vein-system of the ancestors of the 

 Lepidoptera ; the main stems might possibly be thus 

 accounted for, but the numerous branches could not. 

 Further, the extreme variability of these branches, 

 which differ much in the two sexes, and even in the two 

 wings of the same specimen, and a certain indefiniteness 

 of outline, tend to indicate abnormality of development. 

 I prefer, however, to express no definite opinion until I 

 have examined a greater number of allied forms than I 

 have yet been able to procure. 



