51 
purple brown.” The identification with the Shetland form was, I believe, 
first put forward by Mr. South (/Tor. South Land. Nut. Sue., 1888-89, 
p. 148), : and must, in the broad sense, be accepted. I may add that 
the Doubleday collection does contain a series of Orkney or Shetland 
citrata in beautiful condition, and I learn from The lintaiuolouist, iv., 
p. 862, that he bred a series from Orkney. I believe the trade-name 
of ivunanata var. scot lea, which has appeared in several of the lists of 
Staudinger and Bang-Haas, was intended to be based on Shetland 
citrata, although four out of five specimens which I obtained under the 
name var. scot lea (through another dealer), are clearly coneinnata, 
probably from Arran, but not labelled, and only one is citrata var. 
pythnnmata. There is really considerable analogy between the two 
forms in question. 
Fuchs’ ab. hrassnojarscensis, erected as an aberration of C. truncata, 
and on a single 5 out of two specimens which he had from Krasnoi- 
arsk, southern Siberia, is at least as likely to be one of those casual 
aberrations which I dismissed under omicronata, Don., and passer aria, 
Fit., as to be a regularly recurrent form. My reason for referring it 
to citrata, rather than to truncata, is that the description best fits 
certain phases of variation of the former ; but I may further add 
that I have not yet any certain information of the occurrence of true 
truncata eastward of the Ural, in spite of many records which I must 
not set aside too hastily. Fuchs describes it as having the wings 
“elongate, like many forms from that locality, the primaries more 
pointed, the colour uniform, dull white-grey, tinged with yellow, 
almost entirely without the usual darkening of basal and marginal 
area, which are only finely dusted, and with only quite faint admixture 
of brownish in the marginal area below the costa; in consequence, the 
transverse stripes stand out prominently, especially the zig-zag outer 
line.” I have seen nothing precisely like it, brat the beautiful Nemoro 
specimen mentioned by Leach (Ann. Mag. Nat. IJist., ser. 6, xix., 
p. 669) as “ a very pale modification of the inarmorata form,” agrees 
exactly in all the essentials excepting shape, and Barrett’s pi. 858, 
fig. 1 c, also comes very near it. 
“ Polijphasia truncata subsp. rufibrunnea,” founded by Warren on 
two females! in the Tring Museum, labelled Parana, Entre Rios, 
Argentina, seems, from a careful examination of the type specimens, 
to be a rather truncata- like form of citrata. Although I know how 
careful the labelling generally is at Tring, I know too, that mistakes 
have occurred, especially in earlier years, and I feel absolutely con¬ 
vinced that the present must have been one, unless, indeed, the 
specimens have been accidentally introduced to Entre Rios by commerce. 
Not only the species, but the entire group is absent from the vast 
intervening region of tropical America, and the specimens are so 
normal in appearance as would be almost incredible on the assumption 
of an ancient geographical isolation. Warren says they are distin- 
* Mr. South here contributed (pp. 145-8) an admirable survey of the best- 
known synonyms and figures (of both Gidaria truncata and citrata), with which, 
though I have worked out my own system independently, I find myself entirely in 
agreement. 
f Mr. Warren tells me half-a-dozen examples came under his hand at the 
same time, which, perhaps, makes the matter still more curious. 
xviii. 
