PERONEA CKISTANA, FAB., AB. NOV. SUBNIGRANA. 267 



Westwooct says of the hind femora : " subtus serratis 

 dentibusqiie tribus majoribus armatis," whereas tbej" are most 

 distinctly bidentate. Also he describes the metanotum as only 

 basally striate, but Euderlein's species has this part longi- 

 tudinally striate throughout. In this case I was misled by the 

 different sense in which the two authors understand the term ; 

 Westwood includes under it both the narrow visible strip of 

 the true metanotum, which is longitudinally striate, and the 

 median segment, Enderlein describing them separately, and 

 the latter part is rugose in both. 



The characteristic points in damellicus, Westw. are : the 

 conspicuous transverse carina on vertex, and the rather broad 

 white line under the eyes, both of which are wanting in 

 Enderlein's species ; the sculpture of the pronotum is also 

 different. 



In the 'Arkiv for zoologi,' ix, 1915, p. 1, Eoman describes 

 a species from West Australia which certainly comes very close 

 to damellicus, West., if not actually, as Eoman suggests, a dark 

 variety of it. He quotes the erroneous tridentation of the hind 

 femora as the principal difference, which now disappears. His 

 species has the carina on vertex and the white line under the 

 eyes, though apparently less developed, as they might well be 

 in a melanic variety, but the five frontal tubercles are all well 

 developed and the posterior margin of the head is not bordered ; 

 in damellicus the two posterior tubercles are subobsolete and the 

 occipital margin is strongly bordered, hence I prefer to retain 

 Eoman's name pictipes for his species, which has also the 

 intermediate tarsi basally white. 



16, Belsize Grove, N.W. 3, 

 November 12th, 1917. 



PERONEA CRIST AN A, FAB., AB. NOV. SUBKIGRANA. 

 By Prof. Selwyn Image, M.A., F.E.S. 



Palpi, head, and thorax cinereous. Fore wing divided in 

 colour diagonally from the base to near the apex into two 

 portions. Of these the upper portion, including the button, is 

 a dull strong blackish-brown ; the lower portion is shining 

 purplish-grey, with usually some small blackish tufts in the 

 tornal area. 



Subnigrana, though closely allied to the nigrana of Clark, is 

 readil}'' distinguishable from it, inasmuch as nigrana has no 

 division of colour in the fore wing, which is blackish throughout 

 and brilliantly mottled with darker colour. 



This aberration is, I think, worth a special name, because, at 

 any rate in Epping Forest, it is by far the most common form 

 of the species, and is very constant in colour and markings. 



