On Hawaiian Nocturnal Lepido^ptera. 317 



logical discoveries on tlie one hand, and on tlie other those 

 which are promised to us by submarine explorations, will 

 gradually fill up these gaps, and perhaps one day enable natu- 

 ralists to grasp the relations which exist between the different 

 animals. 



Our country has not remained indifferent to these researches ; 

 the Academy at its last meeting heard the interesting details 

 given by M. de Lacaze-Duthiers upon the organization of his 

 laboratory at Roscoff and the work that has been accom- 

 plished there. For my own part I am happy to be able to 

 announce that the expedition accomplished last year in the Bay 

 of Biscay by the 'Travailleur' will not be the last of its kind, 

 and that this summer the same ship will undertake a series of 

 dredgings in the Mediterranean, of which I shall have the 

 honour to give you an account. 



XXXII. — On a Collection of Nocturnal Lepidopterafrom the 

 Hawaiian Islands. By Arthur G. Butler, F.L.S., 

 F.Z.S., &c. 



The collection of which the following is an account consists 

 of eighty specimens forwarded to me last year by the Rev. 

 Thomas Blackburn. It is particularly interesting as being 

 to a large extent composed of Micro -Lepidoptera, of which we 

 have hitherto received very few species from the Hawaiian 

 Islands. 



SpMngidge. 



1. Deilejyhila calida, sp. n. 



General size, form, and pattern of D. euphorbice^ but tlie 

 primaries coloured as in D. biguttata of Madagascar, and the 

 secondaries differing from all species of the genus in their 

 dark outer border ; on the under surface the general coloration 

 is bright brick-red. Primaries above smoky grey ; a broad 

 dark olive-brown belt across the base, three unequal subcostal 

 spots, and a tapering discal belt of the usual form and also of 

 a dark olive-brown colour; a narrow transverse fasciole 

 forking from the inner margin of the discal belt to the costa ; 

 below this fork the belt is edged internally by a golden 

 ochreous line ; outer borders of a dark and slightly purplish- 

 grey colour, decidedly darker than the central area of the 

 wing J fringe with a slender whitish basal line : secondaries 

 black with narrow diffused sooty-grey border, scarcely paler 



