76 [June 



angle, a single black sub-costal spot beyond this series of terminal spots. 

 Under surface of wings paler, yellowish along all the margins, reflect- 

 ing indistinctly the markings of the upper surface. Tegulge and disc 

 black bordered with flesh color, collar with two black spots ; head 

 flesh color, immaculate above ; antennre, palpi, legs and under surfice 

 of abdomen smoky-black, anterior femora touched with yellowish infe- 

 riorily ; abdomen pale yellowish pink above with a doi'sal row of re- 

 duced black marks. S Exp. IJ inches. 



Hah. Canada West. (Coll. Ent. Soc. Philad.) Common. 



Larva. " Head small, black, reddish at the sides. Body dull-black, 

 rather glossy, with a slight reddish tinge. On each segment is a trans- 

 verse row of black tubercles, emitting tufts of stifi" bristly hairs of the 

 same hue. Hairs on the two broader segments longer than those on 

 the others. A faint whitish dorsal line from the head to the third 

 segment. Under surface dull-red, feet and prolegs of the same color.." 

 Saunders. 



The imago of the present species closely resembles A. virgo Linn., 

 in coloration, and is distinguishable from that species by its smaller 

 size, the stripes on the veins on anterior wings being confined to the 

 vein, linear, not spreading out on either side, and by the absence of 

 central and discal spots on the posterior wings. The larva has also 

 been ascertained by Mr. Saunders to be distinct, as will be seen by his 

 description which I have quoted above. 



It afi"ords me much pleasure to dedicate this species to Mr. Wm. Saun- 

 ders, who first suggested its distinctiveness from A. virgo Linn., while 

 erroneously regarding it as Kirby's A. virguncula. 



From the absence of comparative allusion it would appear that Kirby 

 in describing his Calliinorpha parthenice, was unaware of the existence 

 of the description of Linnaeus' virgo, and whether or no there be two 

 large distinct forms included under the latter name, which I much doubt, 

 I am of opinion that partlienice Kirby, should be regarded as a simple 

 synonym of virgo Linn. Kirby's description presents some resem- 

 blance to A. Saundersii, but the (S ) expanse given (If in.) is larger. 

 A. partlienice Saunders, appears to me a modification of A. virgo Linn., 

 with brown antennge and apparently broader stripes, but I should hesi- 

 tate to assume a specific distinctiveness upon such small difi'ereuces, 

 the expanse being the same. I believe then to assume but two distinct 



