DIAPHORA MENDICA, FORM VENOSA, N.F. 79 



DIAPHORA MENDICA, FORM VENOSA, N.F. 

 By Robert Adkin, F.E.S. 



Male, white-grey with a faint brownish tinge, veins darker 

 grey, fringes paler. Female white-grey, veins darker grey, 

 fringes white. 



The form above described somewhat approaches rustica, and, 

 as in that form, individuals vary somewhat in depth of colour, 

 but differ from rustica in the general tone of colour inclining 

 towards grey instead of ochreous shades. In the lightest males 

 it is very pale grey with the slightest tendency towards a 

 brownish tinge, while in the darkest the grey takes a somewhat 

 more brownish tone, whereas in rustica there is always a sus- 

 picion of an ochreous tone even in the palest specimens, the 

 darkest being a decided, although it may be pale, ochreous 



brown. Moreover, the dark grey veining, especially in the more 

 strongly marked specimens of both sexes, is a character that at 

 once separates venosa from other forms of the species. This 

 form is also less densely scaled than rustica, which gives it a 

 semi-transparent appearance which is more particularly notice- 

 able in the female. Both sexes have the black spotting common 

 to the species more or less well-defined and agreeing as to the 

 number of spots. 



The race occurs in the lowlands of County Tyrone, Ireland, 

 and a few specimens, reared from a captured female, bred true 

 to form. . 



Types, male and female, in the collection of the British 

 Museum (Natural History), and co-types in that of the Trmg 

 Museum and my own. 



Eastbourne ; 



February, 1922. 



