44 
have overlooked gygrnaea, Tgstr., seeing that it is quoted by Aurivillius, 
whose work (Nordens Fjdri'lar) he has freely used. 
The following are all the separable forms known to me : — 
1. Venivda cambrica, Curt, (type form).—Ground-colour light 
bright grey, well freckled with pale brown, and with the lines, etc., on 
the forewings distinctly marked. This seems to be the commonest 
form, at any rate in Britain. In Curtis’ figure the central area is not 
narrowed, but this narrowing often happens without any other deviation 
from type. Barrett (Leg. Brit., iii., pi. 349, fig. 1) also figures the 
type form. Nebnlosaria, Frr. (Feu. Beitr., vi, pi. 528,5) is virtually 
synonymous with the type ; it is a <? , figured from a worn specimen, 
allowing for which (and for manifestly poor execution), I do not see 
anything aberrant in it* * * § . His later figures (pi. 546, 2, 8, 3 and $ ) 
are of the whitish form (no. 2, infra) but cannot take the name 
nebnlosaria, which is preoccupied at pi. 528. 
2. Ah. erutaria, Bdv. (Gen. et Ind. Meth., p. 203), Dnp. (Hist. 
Nat. Sapp., iv., pi. 54,4).—Ground-colour much whiter than in the 
type, markings well pronounced. Boisduval says “ alte alhidte,” and 
Duponchel gives a very respectable figure of the whitest normal form. 
Herrich-Schaffer (Sgst. Bearb., iii., fig. 258, 259) figures a less strongly 
marked example, but still belonging to these pale aberrations. Whitish 
specimens (almost unfreckled) seem commoner in Scotland and on the 
continent of Europe than in England!. 
3. Ab. scitnlaria, Walk. (List, xxi., p. 406).—Rather dirtier-looking 
than the type (though not actually infuscated), the lines somewhat 
less-strongly expressed, the normally black ones less black, so that 
the whole effect is less sharply contrasted and nearer to the allied 
American Venusia (or Euchoeca — Hydrelia) coinptaria, Walk. Besides 
Walker’s type specimen (from New York) the British Museum has a 
similar one from Anticosti. It may well occur also in the Old World. 
Both the specimens adduced are rather small, but I should not insist 
upon this characteristic in applying the varietal name. 
4. Ab. pygmaea, Tgstr. (Cat. Leg., in Acta. Soc. F. F. Fenn., x., 
p. 31).—Small, with central area constricted, and hindwings almost 
without markings.^ None of the Finnish specimens in the British 
Museum entirely agree with this, w'hich must be a rare aberration ; 
but they have the “ posticis subinnotatis§. 
5. Ab. latefasciata , Strand (Nyt. Mag. Nat., xxxix., p. 59).— 
* It would be just p issible to use the name for aberrations with the second line 
on the forewings nuusually distinct com pared with the other markings, if such occur 
in a state of nature ; for Freyer’s figure hns this line rather thick and black, 
while the other markings are comparatively weak. 
t Some intermediates occur between the type and ab. erutaria, and sometimes 
they have quite a bright light-brown tinge; but they do not seem to admit of 
being named separately. 
J “ Multo minor, strigis transversis alarum antiearum ambis approximatis et 
confiuentibus (posteriori itaque a limbo magis distante) alisque posticis sub- 
innotatis, albidis, ad Petrosavodsk a Gunther deprehensa, vix propria efficit 
species” (Tgstr., loc. cit.). 
§ I may here remark that the hind-wing varies (in more or less normal 
specimens) from having four to only one transverse line perceptible. Thus H.-S. 
258,9 and Frr. 528,5 show only one (central) line, Frr. 546,3 only two (submarginal), 
Frr. 546,2 all these three, whilst Dup. 54‘4, Word 1724 and Pack. viii. 27 all these 
four (a central pair and a submarginal pair). The type figure (Curtis) also has all 
these four, but none very strong, the inner pair the weaker and less complete. 
