THECLA 1. 



Secondaries have a long discal streak, a eurv(>(l ti-ansverso row of black spots 

 and streaks, each surrounded or edjicd l>y white, the six from costa nearly round, 

 the fifth being anterior to the general line, the seventli long and bent towards anal 

 angle, the last a streak running up the margin and bent near its inner extremity ; 

 hind margin edged with whitish and bordered by a vermillion (sometimes orange) 

 band which is divided by the nervures into sjiots, each of which is arched above 

 and edged with black on which rests a line of bluish white ; this band extends 

 some distance uj) the abdominal margin and encloses, on hind margin near anal an- 

 gle, a large rounded space sprinkled with blue atoms; the three or foyr red spots 

 next outer angle partly obsolete and the spot next the blue j^atch sometimes edged 

 on the marginal side by black ; in some specimens a black edge at anal angle. 



Body above dark brown, below greyish-white ; legs greyish-white ; jialpi white, 

 at extremity black tipped with white ; anteume black anuulated with white ; club 

 black, reddish at ti[). 



Female. Same size. Similar to the male, only wanting tlieoval spot on pri- 

 maries. 



Taken in Canada, near London, and in various jtarts of New England and 

 New York. 



I have received from Mr. Saunders a description of the larva and chrysalis 

 of this species as follows : 



" Found feeding on willow, June 11, 18(35, June 18, 1806, and about middle 

 of June 1807 and 1808. Lengtli 0.03 inch ; onisciform. Head very small, pale 

 brown and shining, drawn within the second segment when at rest. Body above 

 green, of a moderately dark shade, thickly covered witli very short whitish hairs, 

 scarcely visible without a magniiier. Body tliickest from third to tenth segments ; 

 a dorsal line of a darker shade of green than the rest of body. Dorsal region flat, 

 rather wide and bordered with a raised whitish-yellow line, beginning at the third 

 segment and growing fainter on twelfth and thirteenth. Sides of body inclined at 

 an almost acute angle and striped with faint ol)lique lines of greenish-yellow. A 

 whitish-yellow line borders the under surface beginning at the anterior edge of sec- 

 ond segment, and extending entirely around the Ijody to a point opjiosite the jjlace 

 of beginning ; this line is raised in the same manner as that bordering the dorsal 

 ridge. Twelfth and thirteenth segments much flattened. Under surface similar 

 to upper, with the same coating of short fine hairs ; feet and prolegs partake of the 

 general color. In a younger specimen the head was almost black with a streak of 

 white across the mandibles. The under side was rather deej^er in color than ujiper, 

 with a faint bluish tint. 



"Clirysalis 0.32 inch long; greatest width 0.15 inch; thickly covered with 

 minute hairs. Color pale brown with many dots and patches of a darker shade ; 



