116 VARIETIES OF 



fully secured, and the results are before me : One very small perfect 

 specimen ; one of a smooth rich brown colour and without markings, 

 a large specimen ; and two large females having full white stigmata, 

 and a rich, distinct, wavy, light striga near the outer edge. These 

 are very striking insects." I have a very small specimen, but have 

 never seen one that could be called really brown, so that Mr. Greg- 

 son's specimen must have been a very unusual form. Taking the 

 mottled grey insect as the type, we have the following forms : 

 1. Ashy grey, mottled with darker, no ochreous colouring, white, 



reniform, subterminal line more or less obsolete = brassicce. 

 2. Grey, mottled with ochreous, distinct stigmata and subterminal 



line = var. albicolon, St. 

 3. Ochreous grey, mottled with darker, white reniform, subterminal 



line present = var. ochracea. 

 4. Unicolorous blackish grey, white reniform, obsolete subterminal 



line = var. unicolor. 



5. Very black, white reniform, white subterminal line = var. 

 albidilinea, Haw. 



a. var. ochracea, rnihi. This is the fig. d of Engramelle, 456. 

 Hiibner's figure (88) may be described as : " Anterior wings pale 

 ochreous, with darker fuscous shades ; all the characteristic lines and 

 markings of brassicce of a pale whitish ochreous. Hind wings grey, 

 margin darker than base, lunule distinct." None of our British speci- 

 mens appear to be referable to this variety. Mr. Dobree, however, 

 writes : " I have specimens from Amurland, where it is very com- 

 mon. These are of quite a pale, warm ochreous ground colour, with 

 typical faint markings. Reniform white, and more compact than in 

 British specimens, and outlined with black. Orbicular, the same as 

 ground colour, with strong black outline, and beneath the orbicular a 

 conspicuous semicircular black mark facing inwards ; the subterminal 

 line almost obsolete " (in litt.). 



/3. var. albicolon, St. This would appear to be the more common 

 form of brassicce in the southern part of England, being mottled with 

 ochreous and dark fuscous, and with distinct stigmata and transverse 

 lines outlined in pale ochieous. Stephens' albicolon (' Illustrations,' 

 &c., ii., p. 195), however, had an " obliterated claviform," which is 

 not usually the case with the mottled variety. 



y. var. unicolor, mihi. Anterior wings dull blackish grey, with 

 the subterminal line almost obsolete, the markings, blending with the 

 dark ground colour, give it a very unicolorors appearance. The outer 

 edge of the reniform white, as in the type. My specimens are labelled 

 Nottingham and Westcombe Park, but I dare say it is found occasion- 

 ally wherever the type or var. albicolon is abundant. 



8. var. albidilinea, Haw. Haworth's description of albidilinea is as 

 follows : * Alis anticis nigricantibus, striga postica alte bidentata 

 albicante." " Statura et magnitude fere N. brassicce. Alas anticse 

 stigmatibus ordinariis, strigaque alte dentata juxta marginem posticum 

 albicante, exacte ut in Noctuis vulgo dictis ' Brocades.' " This extreme 

 variety is, I believe, rare. I have only one of this intensely black 

 form with distinct white markings. My specimen was bred from 

 pupae, sent me by Mr. Mottershaw, of Nottingham. Mr. Eobson, in 

 the l Young Naturalist,' vol. ix., p. 103, referring to Mr. Gregson's 



