196 LEPIDOPTERA. 



on the Dublin coast, Feriiiauagb, Armagh, Antrim, and 

 Donegal. 



Abroad its range is through Central Europe, North- Western 

 and Southern Kussia and Norway, 



4. H. viburniana,i^«?). — Expanse f to ^ inch(18-22 mm.). 

 Fore wings rather pointed, unicolorous, grey-brown or red- 

 brown ; fore wings of female more pointed. 



Antenna) of the male grey-brown ; palpi, head, and thorax 

 blackish-brown ; abdomen similar at the base, shading off to 

 pale yellow at the anal tuft. Fore wings rather thick in 

 texture, moderately broad but somewhat elongated, the apex 

 rather protruding but not sharp ; colour grey-brown, olive- 

 brown, or red-brown, usually without markings, occasionally 

 with a faint shade of deeper colour which suggests a central 

 band ; cilia concolorous. Hind wings ample, pale smoky 

 brown ; cilia white. Female stouter and often, though not 

 always, a little smaller; the fore wings narrower, with the 

 costa more undulating and the apex larger and sharper ; 

 darker brown or red, with a faintly stronger indication of a 

 central baud. 



Underside of the fore wings smoke-colour, with the margins 

 paler ; hind wings white. 



Variable in colour as already indicated ; the red-brown 

 form is found of a rich tone in the South of Ireland, and 

 shading to brown-red in the West. 



On the wing from June till August. 



Larva active, cylindrical, smoky greenish-black ; head 

 light brown with two triangular black spots at the back ; 

 dorsal plate pale brown, margined at the sides with black, 

 and with a triangle of black dots in the middle ; raised dots 

 white, rather conspicuous, hairs white. When young dark 

 olive-green. 



May and June on Voxciniwia myrtillus, Erica cinercn, 

 Mynca gale, sallow and very many low-growing plants, 

 especially those growing on heaths, bogs, and waste ground. 



