224 ZYG^NID^ AND BOMBYCID^ 



Strecker, having shown me a letter from that distinguished entomolo- 

 gist in which he so expresses himself. It is evidently an arctic form, 

 as the specimen from which the figure is drawn though taken in New 

 Hampshire, was found on the top of Mt. Washington. 



14.-ARCTIA BLAKEI. (PI. 9, fig. 9.) ^ .) 



Arctia Blakei, Grote, Proc. Ent. Soc. Phil. vol. 3, p. 523, pi. 5, fig. 

 2 ?. (1864.) 



" Head and palpi creamy white ; orbits of the eyes black ; a black 

 spot on the vertex between the antennae, which latter are moderate, 

 bi-serrate, blackish, whitish on their outer surface except at extreme tip. 

 Thorax rather deeper creamy white, with two prothoracic and three 

 thoracic black maculations ; legs black, marked with whitish ; posterior 

 tibiae and tarsi distinctly striped with whitish on their upper surface. 

 Abdomen creamy white, shaded with yellowish red on its upper sur- 

 face and at base, with a broad dorsal segmentary series of black macu- 

 lations, and lateral ones reduced ; beneath largely marked with black. 



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

 ately 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, and 

 sometimes appearing in the interspace below it ; two costal spots, the 

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

 ruptedly to the longitudinal band and appears below it, broader, dis- 

 tinct, and continued to internal margin. Median and submedian 

 veins at base striped with same color as the bands ; internal margin 

 and fringes pale creamy white ; costa striped with the same color ex- 

 cept for a narrow 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 fused at costal angle, the one at anal 

 angle the largest ; discal, costal, subcostal and supra-anal, spots 

 present, black ; under surface resembling upper but greatly paler." 



Grote, (loc. cit. ) 



