THE CANADIAN ENTOMOLOGIST 21 



as it is through his efforts that I have been able to prepare this 

 paper I propose to describe it as follows: 



Xanthorhoe blackmorei, sp. no\ . 



Antennae broad as in pontiaria, front of head with reddish 

 tinge, thorax and abdomen fuscous ashen. The primaries are 

 fuscous ashen, a basal brown band starts at an angle from the 

 costa, turns back and goes straight to inner margin. There is a 

 pale space crossed by three scolloped hair-lines beyond the brown 

 basal patch. The intradiscal line starts at an angle below costa, 

 then curves outwardly to inner margin. In the holotype, the 

 intradiscal line curves outward from costa to inner margin and 

 lacks the sharp bend downward on costa which occurs in some 

 specirriens. The median band is usually solid blackish with a 

 wine-coloured tinge, and has a tendency to disappear below median 

 vein. In some examples the centre of the median band is pale 

 and there are the geminate intra- and extradiscal lines, as in the 

 other species. The extradiscal line runs downward from costa 

 about 3 mm. and then forms a small sinus, the second projection 

 of which is about on a line with median vein. Below the median 

 vein the extradiscal line makes two scollops inwards, then runs 

 straight to inner margin, scolloped on the veins. There is the 

 usual pale, extradiscal band and scolloped hair-lines with the 

 marginal band beyond and subterminal, white scolloped line. 

 The fringe is short with small, black dots on either side. "The 

 secondaries are fuscous ashen, with the usual lines, except that in 

 some specimens the extradiscal line is strongly angled below the 

 discal dot. Beneath the primaries and secondaries are marked 

 as above but paler, except in the basal portions, where they are 

 smoky. 



Expanse 28-30 mm. 



The early date of appearance, together with tendency of the 

 extradiscal line to be angulate, and the blackish median band of 

 prim'aries, help to separate this species from the others. 



Holotype.— d', May 2, 1915, Victoria, B.C., from E. H. 

 Blackmore, in coll. Swett. 



Allotype.— 9, May 19, 1915, Victoria, B.C., from E. H. 

 Blackmore, in coll. Swett. 



