IN THE BRITISH ISLANDS. 7 



Thorax with whitish hairs hindward. Abdomen pale brown, whitish 

 towards the base. Forewings with paler and blackish spots along the 

 costa, and with blackish marginal lumiles ; all the other marks obso- 

 lete. Hind wings white with brownish borders." " Venezuela, from 

 Mr. Dyson's collection." 



P. var. impacta, Walker (' Lep. Het.', x., p. 338). "Cinereous 

 brown. Thorax somewhat fawn-coloured and with brown bands in 

 front. Abdomen hoary. Forewings slightly speckled with brown, 

 with indistinct, transverse, double undulated brown lines ; claviform 

 spot obsolete ; orbicular elliptical, testaceous, nearly as large as 

 the reniform which is formed as usual and is dark brown with a 

 testaceous border ; marginal lunules blackish. Hind wings pale 

 cinereous, brownish about the borders." This variety is represented 

 by specimens from " Venezuela and Rio Janeiro." Of impacta I made 

 the following note : " This is a form with the costa paler than the 

 rest of the wing. The ground colour pale reddish-brown ; the hind 

 wings of both sexes, comparatively pale, females slightly darker on the 

 outer margin, altogether a very pale form." 



7. var. intecta, Walker (' Lep. Het.', x., p. 338). " Male. Fawn 

 colour. Antenna minutely crenulate. Abdomen cinereous ; apical 

 tuft fawn colour. Fore wings with brown speckles, which are fre- 

 quently confluent. Hind wings whitish, brownish along the borders/' 

 " Monte Video." 



8. var. ambrostoides,lMLoritz. M.S.; Walker (' Lep. Het.', xi., p. 738). 

 " Female. Reddish-ferruginous. Thorax with a cinereous band. 

 Abdomen cinereous. Fore wings with a cinereous tinge between the 

 discal spots and the anterior border ; marginal dots blackish, minute, 

 indistinct ; discal spots distinct with deep red borders ; orbicular 

 oblong, subquadrate, more than half the size of the reniform which is 

 hardly excavated. Hind wings white with very narrow brown 

 borders." " Venezuela, Bogota." 



e. var. turris, Grote. This is a form in which the ground colour 

 of the fore wings is uniform (no darker costa or inner margin), being 

 strongly tinged with reddish-ochreous and the stigmata grey, otherwise 

 the specimen is very like some of the other pale varieties with uniform 

 ground coloration. It is very like impacta, Walker. 



. ? var. texand, Grote. I am in doubt whether Grote's type is 

 really referable to this species, although it appears to be so. The 

 anterior wings are of an almost unicolorous dark fuscous-grey with the 

 basal line and stigmata faintly indicated in darker ; the extreme outer 

 margin also darker, the nervures dusky, the ground colour having the 

 appearance of pale longitudinal dashes between the elbowed and 

 subterminal line. Hind wings very white and very little darker on 

 outer margin. 



Agrotis, Och., ypsilon, Rott. 



The type of this species is thus described by Rottemburg: 

 " Fore wings dark reddish-brown, shaded with black-brown. There 

 are 3 indistinct undulating transverse lines, one of which is near the 

 base, the other 2 in the middle of the wing. Each of these lines 

 consists of 2 dark brown closely united lines. Between the 2nd and 

 3rd, stands an indistinct round and a kidney-shaped spot, both are lined 

 with black, on the outer side of the reniform is a black streak, and a black 



