1874.] Of) 



autl make3 albuhtnn, Tr., a variety of it. If this be correct, the varia- 

 tion is verj extraordinary. The other species of the genus Cnephasia 

 (witli the exception perhaps of nuhilana) are bo deeply involved in 

 difficulty from the extraordinary manner in which they appear 

 to run into one another, and the extreme difficulty of deciding which 

 are species and which merely local vai'ieties, that I think it best to 

 defer any detailed notice of them for the present, in the hope that some 

 satisfactory conclusions may be arrived at in the future. Of this 

 there is the greatest probability, since the investigations of Dr. Ottmar 

 Hoffman (translated by j\Ir. Stainton in the Eut. Ann., 1873, p. 50) 

 seem to point to reliable structural characters separating the species. 

 It is satisfactory to find that, as far as they have gone, his observations 

 seem to confirm the distinctness of the most puzzling allied species, 

 and to condemn Dr. Wocke's method of getting through the difficulty 

 by putting most of them together under the name of Wahlhomiana, 

 Linn. 



As Mr. Doubleday has added this name and that of ahrasana, 

 Dup., to the latest Supplement to his List, it may be well to say that 

 Wahlbomiana appears, as far as I can judge, to be the longer winged 

 form, common on some parts of the coast as well as occasionally inland, 

 which has hitherto been placed with suhjectana or virgaureana, or 

 called incorrectly by the name oi pasivana, Hiibn. 



Ahrasana, Dup., is a nearly unicolorous pale grey insect larger 

 and paler than nuhilana. 



Ablahia pratana, Iliibn. — AVocke substitutes osseana, Scop., as an 

 earlier name. 



In this family Dr. Wocke places two rather anomalous species 

 which are not iiu-luded by Wilkinson in his work: Tortricotlfs Jii/emana, 

 lib., which he changes to tortricclla, Iliibner's earlier name for the $ ; 

 and Exapate gelatella, Linn., which ho changes to congelatella, Clerck. 



Eucliromia arhufclla, Linn. 



Eucliromia fulvipunctana, Haw. — Corrected by Mr. Doubleday in 

 his List to Jlammcana, Frol., but now again altei'ed by him, as well as 

 by Dr. Wocke, to Mijgindana, Schiff., a still earlier name. 



Euchromia purjiurana, Haw. — Dr. Wocke sinks this species as 

 a variety of riifana, Scop., but I am decidedly of opinion that they are 

 distinct, the fore-wings in this species being narrower in proportion to 

 their length than in rufann. Mr. Doubleday in the last Sup[)lement 

 to his List adopts this view. 



