220 ZYGiENID^ AND BOMBYCID^ 



A. virguncula, Kirby, is in reality the A. persephone of that author ; 

 and Mr. Packard that Ardia nais of Saunders' Synopsis is A. virgun- 

 cula, Kirby, while the A. virguncula of the same synopis, is the species 

 allied to A. virgo and subsequently separated by Grote under the name 

 of A. Saundersii. 



I have been unable to find any record of the larval stages of this 

 species. 



U.-AECTIA ANNA. (Plate 9, fig. 6, ? .) 



Arciia anna, Grote, Proc. Ent. Soc. Phil. vol. 2, p. 335, pi. 8, 

 fig. I, ?. (1863.) 



" Head between the eyes pale yellow, without spot. Disc of the 

 thorax and each tegula black bordered with pale yellow ; collar yel- 

 lowish with two black spots ; base of the thorax showing a few reddish 

 colored hairs. Upper and under surface of abdomen immaculate and 

 with under surface of thorax, legs and antennae, deep brownish black. 

 Palpi black." 



" Anterior wings deep velvety black striped with pale yellow. Costa 

 black with a small pale yellow streak at base ; subcostal vein to apical 

 third, median vein and its two middle branches and submedian vein 

 narrowly striped with pale yellow. A broader pale yellow band trav- 

 erses the wing longitudinally from base to external margin, becoming 

 slightly forked at internal angle, and upon which, in the terminal half 

 of the wing, rests a series of pale yellow stripes in the shape of the 

 letter K, with the straight stroke turned towards the base of the wing 

 and the upper limb reflexed, at the apex, towards the costa. In the 

 discal area is a narrow transverse spot, apparently the remains of an 

 obsolete band.* Internal margin rather broadly striped with pale 

 yellow ; fringes brownish black. 



"Posterior wings brownish black, immaculate; fringes of a more 

 brownish shade. Under surface of the wings dark brown, and show- 

 ing, on the anterior pair, traces of the broader yellow bands of the 

 upper surface. 



Expanse of wings, 1.85 inches. 



Habitat. — Pennsylvania, (coll. Phil. Ent. Soc.) 



" The blackish, immaculate abdomen and posterior wings separate 



*Thi8 spot is not noted in Grote's original description. 



