ifc ttti: fiRtTisit ISLANDS. 8? 



with the stigmata paler. In all the subterminal is very distinct, 

 and the M which it forms has the points very sharp and prolonged 

 into the fringe " &c. (' Noctuelles,' vi., p. 99). Knoch's actual type 

 is described as follows : " P. Noctua spirilinguis cristata alis de- 

 flexis crenatis: superioribus hepaticis macula conica linea terminali 

 bidentata." " Alee anteriores supra hepaticae fceminae (' Tab. iv., fig. 3), 

 furvaa, ad basin macula fere triloba fusca dilucide terminata, deinde 

 conica nigro limbata ; turn stigmatibus ordinariis valde obsoletis line- 

 aque foeminae undata transversa prseter terminalem bidentatam. 

 Posteriores pallide fuscaa nitidae versus marginem exteriorem nigri- 

 cantes, lineola ad angulum ani undata " (' Beitrage zur Insecten ' &c., 

 p. 57). Of the figures to which this description refers I wrote : " PL 

 iv., figs. 3 and 4 are both of the almost unicolorous, dark red-brown 

 form, with blackish claviform and a whitish subterminal line." The 

 variegated form is the suasa of Borkhausen, the dark ashy-grey form 

 is the w-latinum of Esper, whilst the extreme unicolorous blackish- 

 grey form appears to be the confluent of Eversmann. The aliena of 

 Duponchel appears to be a form sliightly intermediate between the type 

 and var. suasa. The following are the various forms that have been 

 described : 



1. Pale brownish, mottled with black == var. suasa, Bkh. 

 2. Dark brown, markings traceable = dissimilis, Knoch. 

 3. Dark brown, mixed with ashy-grey, almost unicolorous = var. 



w-latinum, Esp. 

 4. Blackish-grey, almost unicolorous = var. conftuens, Ev. 



Mr. T. D. A. Cockerell notes : " Hadena dissimilis var. discolor, 

 Speyer == atlantica, Grote, see ' Can. Ent.' 1877, p. 22 ; 1881, p. 128 " 

 (in. litt.). 



a var. suasa, Bork. This is the mottled form of the species, of a 

 brownish tint with pale orbicular and reniform, blackish claviform 

 leading into a black spot at the base of the reniform, and a distinct 

 pale subterminal line. Borkhausen's description is : " Anterior wings 

 liver colour or brown, mottled with lighter and darker shading. In 

 the middle of the wing towards the costa are the ordinary stigmata, 

 somewhat paler than the ground colour, but bordered with brown. 

 Under the orbicular is the dark claviform, outlined with black, touch- 

 ing which, in some specimens, is a black basal line, the angulated line 

 sometimes traceable, with a compound black mark at the angulated 

 point. Near the hind margin is the subterminal, whitish or ochreous 

 in colour, making a Latin W in the centre and edged with black. 

 Near the apex on the costa, are three pale brown or ochreous spots. 

 Hind wings pale brown darker on the outer margin " (' Naturges- 

 chichte " &c., iv., p. 457). This appears to comprise without doubt the 

 aliena of Duponchel according to his description, although his figure 

 (PL 30, fig. 1) is very unsatisfactory. He writes: "The superior 

 wings of a yellowish-grey, marbled with reddish ; the costa 

 paler; the fore wings traversed by 3 greyish- white lines, bordered 

 with brown on both sides ; the two first at the base and wavy, the 

 third is at the extremity of the wing and angulated, making in its 

 centre, a very distinct M-mark, as in suasa and oleracea, which appears 

 very distinct because shaded with dark brown ; the two stigmata 

 slightly paler than the ground colour, but indistinct ; a third, oblong 



