270 THE CANADIAN ENTOMOLOGIST 



vein, while others have spots on only two or three veins. Terminal area and 

 sagittate mark as in hastata. 



Secondaries. — It is on these that the most striking difference occurs, the 

 large black basal area of hastata giving place to a small, dusky basal patch, the 

 rest of the wing, nearly to the outer margin, being clear white, with the exception 

 of a narrow, irregular, broken, black, post-median band which is more pro- 

 nounced in the holotype than in most of the other specimens. The black 

 outer margin is slightly narrower than in hastata. Underneath, all the markings 

 of the upper side are reproduced in detail. Another slight difference which 

 appears fairly constant is in the fringe of the primaries, which in hastata is regu- 

 larly and evenly black and white checkered, but in albodecorata it is quite black 

 from the apex to the sagittate mark, below which it becomes as in hastata. 



Alar expanse 31-34 mm. 



Described from 28 specimens, 14 cf's and 14 9 's taken by the author at 

 Coldstream, B. C. 



Holotype. — cf  Coldstream, B. C, June 7th, 1916. 



Allotype.— 9 , Coldstream, B. C, May 18th, 1915. 



Paratypes.—lZ &'s, Coldstream, B.C., May 8th, 20th, 1915; June 11th, 

 1913; June 3rd, 1915; June 6th, 7th, 8th, 1916; 13 9 's, Coldstream, B.C., 

 May 8th, 1915; June 3rd, 1915; June 6th, 7th, 9th, 1916; July 4th, 6th, 1916. 



Types and paratypes in the author's collection.+ 



At first I thought this new species was a white form of hastata, but having 

 had both species under observation for several years, I came to the conclusion 

 that they were distinct. 



In the first place, albodecorata is on the wing from a week to ten days earlier 

 than hastata, although the date of appearance depends upon the season. Dur- 

 ing the years 1915-16 and '17 I gave special attention to the dates of their ap- 

 pearance, arid although the season varied in each of those thriee years (1915 

 being an especially early year) hastata never put in an appearance until the 

 new species had been flying for at least a week. Secondly, although both 

 species are subject to a certain amount of variation within certain limits, I 

 have never known them to intergrade and when one is acquainted with both 

 species, it is comparatively easy to sort them out by their general habitus. 



Pyramd.^. 

 Herculia florencealis, nov. sp. 



Palpi deep yellow with a few scattered red and black scales exteriorly. 

 Face and head light fawn, thorax a darker shade of same colour. Antennae 

 fawn, but the scales on each segment are dark tipped, giving them an annulated 

 appearance. Abdomen deep cream colour, each segment ringed with dark 

 brown, posteriorly. Primaries, basal area fawn colour, with a few scattered 

 black scales which are accentuated along the costal region, central area a wide 

 brown band with its interior edge strongly dentate from costa to inner margin; 

 the exterior edge extends obliquely outward from costa to veing b, thence 

 curving gently inward to inner margin and being finely crenate. 



On the costal margin of this band are five small sub-quadrate yellow patches. 

 Bordering the wide median band is a narrow yellow streak beginning at costa 

 where it is widest and extending to vein 6 where it becomes obsolete. The 



