OF NORTH AMERICA. 131 



1 -SPILOSOMA VIEGINICA, (PI. 6, fig. 6 $ .) 



Bombvx virginica, Fabr. 



Arclia virginica, Harris, Cat. Ins. Mass. Hitch, Rt. )). 591. (1833.) 



Arctiavirginica, Harris, Ins. Inj. Veg. p. 248. (1841). 



Spliosoma virginica. Walk. Cat. Lep. B. M. vol. 3, p. 668. (1855.) 



Spilosoma virginica^ Fitch, 3rd Rep. Ins. N. Y. (1856.) 



Spilosoma virginica, Clem., Proc. Acad. Nat. Sci. Phil. p. 531. 

 (i860.) 



Spilosoma virginica, Morris, Sym. Lep. N.Am. App. p. 342. (1862). 



Arctia virginica, Harris, Ins. Inj. Veg. 3rd ed. fig. 168, larva 167. 

 (1862.) 



Spilosoma virginica, Saund., Syn. Can. Arct. p. 14. (1863.) 



Spliosoma virginica. Pack., Proc. Ent. Soc. Phil. vol. 3, p. 125. 

 (I864.) 



Spi/osoma virginica, Riley, 3rd Rep. Ins. Mo. p. 68, fig. 28, a. 

 larva, b Pupa, c. imago. (1871.) 



S. ?. — Head, prothorax, patagia and thorax, white, hairy, less 

 so than in S. vestalis. Palpi white tinged with yellow beneath. Ab- 

 domen and thorax white beneath, the former orange yellow above, 

 (except the last segment which is white) with a dorsal and lateral row 

 of black spots. Legs white, tarsi sub-annulate with black, coxo^ and 

 femora of the anterior pair inwardly orange yelknv, with a black dot 

 at the base of the coxse, another on the inside of the femora, the hips 

 of the latter and the anterior edge of the tibiae being also touched 

 with black. 



Wings pure white above and beneath. On the primaries there are 

 two minute black dots, one at the base of the 3rd median nervule, 

 and one between it and the margin. The secondaries have three 

 larger black dots, one discal, one near the anal angle and one near 

 the apex. These spots are seldom all present, those which are most 

 frequently present being the discal dot on the primaries, and the anal 

 spot on the secondaries. lieneath, the discal spot on the anterior 

 wings is usually visible, while on the posterior wings the discal spot 

 is more conspicuous and that at the anal angle is nearly always clearly 

 defined. 



Expanse of Wings, i. 70-1 .90 inches : length (t/* ^;^v 0.70 inch. 



Habitat — Eastern States generally. California.^ (Coll. Stretch.) 



Larva. — The following description is taken from Harris Ent. Corr. 



