PLAIN PUG. 237 



As a British species, it was first met with in Surrey, in 1862, 

 then it was noted in Sussex, and shortly afterwards in Yorkshire. 

 At the present time, it will probably be found in any locality 

 where larch is plentiful. 



Grey Pug (^Eupithecia casHgatd), 



Although, as the English name suggests, this insect is greyish, 

 there is always a tinge of ochreous in the composition of its 

 general colour (Plate 97, Fig. 6). Not infrequently the ground 

 colour is decidedly brownish in tint. The markings vary in 

 clearness, but are most distinct in the paler forms. A blackish 

 form occurs in the north of England, and in the Clydesdale 

 district of Scotland, and was formerly known as the " Paisley 

 Pug." 



The longish caterpillar (Plate 92, Fig. i) is pale or dusky 

 olive, varying to reddish brown, with a series of darker marks 

 on the back. It feeds, from August to October, on the foliage 

 of almost any plant. 



The moth is out in May and June, and occasionally a few 

 specimens emerge in the autumn. Generally distributed over 

 the British Isles, but apparently not noted in the Orkneys and 

 Shetlands. 



Abroad, the range extends to Amurland. 



Plain Pug {Eupithecia subnotata). 



The fore wings of this species are pale ochreous brown, 

 inclining to pale reddish on the outer marginal area; the most 

 distinct markings are a pale cross band beyond the black discal 

 dot, and a pale winding submarginal line. The hind wings are 

 smoky grey, with whitish wavy cross lines, the most distinct 

 being the outer (Plate 97, Fig. 9). The stoutish and somewhat 



