IN THE BRITISH ISLANDS. 89 



' 1.: A dark greyish black mottled form, without the i-n-like mark 

 = gemina, Hb. 



2. A reddish or brownish grey mottled form, without the i-n-like 

 mark = var. rufescens. 



3. A grey form, with an nn-like mark under stigmata = var. 

 intermedia-grisea. 



4. A reddish or brownish grey form, with an nn-like mark 

 under stigmata = var. intermedia-rufa. 



5. A grey form, with dark blotch between stigmata from nn-like 

 mark to costa, dark outer margin = var. remissa, Hb. 



a. var. rufescens, mihi. Ground colour reddish or brownish grey, 

 with the transverse lines as in the darker type. As in the type, there 

 is no special development of the claviform, or of the darker central 

 area, which becomes so noticeable in the following varieties. Many of 

 the specimens belonging to the mottled form, taken in the South of 

 England, have a more or less reddish or brownish ground colour. I 

 believe this variety occurs in most localities in all parts of the British 

 Islands where var. intermedia and var. remissa occur. 



/3. var. intermedia, mihi. Under the head of intermedia we get two 

 subvarieties ; one grey in colour, the other reddish brown. These I 

 have called : (1) intermedia-grisea. Ground colour grey or greyish 

 brown, with the claviform developed into an h-*-like mark, which 

 joins the median transverse lines, the space between the stigmata being 

 darker than the ground colour, and thus having a somewhat banded 

 appearance. (2) intermedia-rufa. This is like intermedia-grisea, but 

 has the ground-colour brownish or reddish grey, with the same 

 characteristic markings as in that variety. This would appear to be 

 the " La Brouillee " of Engramelle. Guenee writes of it : " It is dis- 

 tinguished above all by a black mark, which unites the two median 

 transverse lines above the submedian nervure, leaving between it and 

 the internal border (i.e., below the nn-like mark) a space generally 

 paler than the ground colour" (' Noctuelles,' vol. v., p. 208). These 

 varieties appear to occur in almost all parts of the British Isles. I have 

 them from Sligo, from Aberdeen, and many other Scotch and English 

 localities. 



y. var. oblonga, Haw. Haworth describes a variety of gemma 

 under the name of oblonga, treating it as a distinct species. He 

 writes : " Alis cinereis nebulosis, costa maculaquae oblonga fuscis, 

 strigaque alba postica undulatissima." "Alse anticae longitudinaliter 

 semifuscae, in qua parte puncta costalia, apex, et stigmata ordinaria, 

 cinerascentia. Altera pars ala3 etiam cinerascit, macula majuscula 

 postica cuneiformi f usca, et alia in medio oblonga marginem tenuiorem 

 versus. Alae posticse albicantes, fimbria fusca ; caetera ut in variis 

 sequentibus (remissa) " (' Lepidoptera Britannica,' pp. 188, 189). This 

 is very little different to some forms of intermedia, but seems to have 

 a darker costal area, in which are situated the paler stigmata. 



8. var. remissa, Hb. About the synonomy of this variety there 

 seems to have been some doubt, although Hiibner, Haworth, and 

 Treitschke appear to have described rather more or less extreme forms 

 of the same variety under the same name. Dr. Staudinger, however, 

 calls the variety remissa, Tr. (why Treitschke I do not know, except that 

 Hiibner's rather more extreme forin is more rarely obtained), and says 



