52 
guished by having “the fasciae before and after the central area reddish- 
brown, this tint also extending to the basal area, and in one of the two 
examples being also diffused over the whole wing, of which in the 
other example the central area is whitish ; all the shades are more 
precise above the subcostal, and below the submedian vein. Hind- 
wings: shining whitish-grey.” I may add that it is not exactly repre¬ 
sented by any other form at the British Museum, and I inclined at 
first to refer it to truncata, since it lacks pure white in the coloration, 
special sharpness of markings, and the strong outward bulge in the 
central area, which is so general in citrata ; but the line on the under¬ 
side of the hindwings is pretty well right-angled, the size and the 
colour of the brown parts agree with certain Icelandic examples of 
citrata, and I have now very little hesitation in referring it to this 
species. 
Of the Indian and North American forms, I will treat very briefly 
in a final section on geographical distribution and local races, but in 
the meantime there is one British form, or species, which I have 
isolated for separate consideration, namely, the so-called “ Arran 
truncata ” which has so long been known, but is still so insufficiently 
understood. 
ClDARIA CONCINNATA (Steph.). 
The accepted synonymy of this interesting form is, I think, perfectly 
correct, namely Polyphasia concinnata, Steph. = Klectra boreata, Curt. 
= [delaria] russata var. consolidata, Gregs.; Staudinger is somewhat 
“ out of it ” in sinking concinnata as a synonym to ab. perfuscata, Haw. 
It is curious that neither Stephens’ types nor Curtis’ were distinctly 
stated to have come from Arran, whence the form is now best known ; 
Curtis explicitly states that his boreata was taken “on rocks near Arra- 
char in Scotland, on August 7th, 1825 (i.e., Arrochar, in Dumbarton, 
near the head of Loch Long, if I mistake not), and Stephens merely 
records his concinnata as from “ Scotland,” though he mentions 
specimens from Dr. Leach in the British Museum which he believes 
were from Arran. But as Wood (Ind. bint., fig. 576) quite recognisably 
figures the Arran form as concinnata , and from “ Mr. Stephens’s 
cabinet, taken in Scotland,” and as the authors who had the best 
opportunity of judging, have made boreata synonymous with concin¬ 
nata,' 1 ' I feel satisfied that we are not far wrong about these forms. 
There is no reason why concinnata should not occur locally on the 
western mainland ; probably its distribution still requires further 
working out; it (or something exceedingly similar) occurs in the 
Hebrides,! as well as in Arran. 
I think Hodgkinson (Zool., 1847, p. 1883) was the first to write of 
concinnata as a var. of russaria (truncata ) — though he uses a query— 
* Stainton ( Ent . Compan., eel. 2, p. 109) definitely uses “ var. boreata ” of the 
Arran form. 
f Weir, in his paper on the lepidoptera of the Outer Hebrides, says (Ent., 
xiv., p. 222) that C. truncata is there remarkably constant, the form being small, 
with black and grey as the prevailing colours, and the usual red markings but very 
faintly shown. This has not been borne out by subsequent investigation ; Barrett 
considers that “the richest tawny forms seem to prevail” in the Hebrides; the few 
to which I have access seem very variable, but according to an examination of the 
genetalia,made since this paper was read, not really referable to concinnata. —L.B.P. 
xviii. 
