400 THE CANADIAN ENTOMOLOGIST. 



The insect usually labelled H. autumnalis or H, trifasciata in 

 western collections is, in my opinian. Hydriomena riiberata^ Freyer, a 

 name which must now be added to our North American lists. 



My four specimens of H. Colunibiata are dated Victoria. 2gth March, 

 1903, and Wellington, i6th, 23rd and 27th May, 1904. The one taken 

 on the 1 6th of May bears the type label. 



15. IIydrio?ne?ia jnanzafiita, new species. — Expanse, 43 mm. Palpi 

 short and stout, deflected. 



Antennae of male thickened, very finely ciliate below. Head and 

 thorax dark slate colour. Abdomen pale brown. 



Fore wings, costa strongly bent at base, rather straighter than usual for 

 the remainder of its length; colour of wing slate gray, with a bluish tinge 

 in some places. Cross lines very indistinct. 



Basal line acutely angled on median vein ; intra-discal line directed 

 outward from costa to median vein, where it is twice as far from the base 

 as at its origin on the costa ; thence at right angles to inner margin. 

 Extra-discal line rather wide, evenly curved outwardly from costa to inner 

 margin, and marked on the veins with black dashes ; submarginal shade 

 smoky gray, three times as wide at the costa as on the inner margin. 



There is a bluish shade on the inner side of the extra-discal line, 

 extending from the costa to the median vein, and a blotch of the same 

 colour on the costa beyond the extra-discal line; there is also a faint sub- 

 marginal line of the same colour dislocated and enlarged at the costa. In 

 very fresh specimens there is sometimes a narrow line of this blue colour 

 bordering the extra-discal line on both sides, and the submarginal shade 

 on its inner margin. Fringe short, of the ground colour of the wing. 



Hind wing sickly pale brown, lighter basally, with a darker median 

 line and broad submarginal band. 



Beneath without markings, fore wing smoky, hind wing pale brown. 



This is a very distinct species, not likely to be confused with any 

 other American form. I have found the larvae commonly feeding 

 concealed between the leaves of the Arbutus tree. The perfect insect 

 emerges from the pupa early in April, and continues on the wing until the 

 first week in May. It has not so far been foimd on the mainland of B. 

 C, but is not rare on Vancouver Island. 



The type specimen is a ^, labelled Wellington, 21st April, 1903. 



16. Xa?it/iorhoe pofitiaria, new species. — Expanse, 35 mm. This 

 species, together with the next to be described, passed in the old 



