1864.] 523 



nereous, reflecting faintly the markings of the upper surface. Head 

 and thorax covered with dull blackish hairs, those on metathorax pale 

 cinereous; abdomen cinereous. % . Exp. 1.35 inch. 



ffahifat.—CauAdii (Quebec), Mr. Bowles. (Coll. Ent. Soc. Phil.;) 

 This delicate species is very fragile in appearance, the wings being 

 very thinly covered with scales, more so than any species of the genus 

 known to me. 



I am indebted to Mr. J. O. Bowles, of Quebec, for the typical speci- 

 men of this hitherto undescribed species. 



ARCTIA, Schrank. 

 Arctia Blakei, nov. sp. (Plate 5, tig. 2. 9 •) 



Anterior wings blackish, bands very pale creamy white. A mode- 

 rately broad band runs from the base of the wing, below the median 

 vein, longitudinally to internal angle, where it becomes furcate, and 

 upon which, in the terminal half of the wing, rests a series of similar 

 bands resembling the letter K, with the straight stroke turned towards 

 the base of the wing and the upper limb, not attaining the external 

 margin, reflexed very obliquely to costa ; a narrow perpendicular stripe 

 runs from the costa across the disc, joining the longitudinal band, some- 

 times appearing in the interspace below it; two costal spots, the outer 

 the larger, and from which latter a very narrow stripe runs interrupt- 

 edly to the longitudinal band and appears below it, broader, distinct, 

 and continued to internal margin. Median and sub-median veins at 

 base striped with same color as the bands; internal margin and fringes 

 l«ale creamy white, costa striped with the same color except for a nar- 

 row space before the apex ; under surface reflecting the ornamentation 

 of the upper surface with a few yellowish scales at base. Posterior 

 wings deep yellow, with a dull red tinge; a series of terminal black 

 spots becoming fu,sed at costal angle, the one at anal angle the largest; 

 discal, costal, sub-costal and super-anal spots, present, black ; under surface 

 resembling upper, but greatly paler. Abdomen creamy white, shaded 

 with yellowish red on its upper surf:ice and at ba.se, with a broad dor- 

 sal segmentary series of black maculations, and lateral ones reduced ; 

 beneath largely marked with black. Head and palpi creamy white ; 

 orbits of the eyes black; a black spot on the vertex between the anten- 

 na?, which latter are moderate, bi-serrate, blackish, whitish on their 

 outer surface except at extreme tip. Thorax rather deeper creamy 



