ANTHOCHARIS I. 



in advance, and an additional one behind makes a triangle with the upper pair ; 

 from 5 to front of 13 in triangle, the dorsal tubercle being on front of the seg- 

 ment, the sub-dorsal on rear, the lateral a little before the middle ; the shield on 

 13 is black and on it is a large dorsal tubewle on either edge of the band, with 

 a lesser one behind, besides two minute ones across the band at the end, in all 

 twelve black tubercles on this segment ; below shield are several white tnbercles 

 with white processes ; from 3 to 13, on the lower edge of the white band, is a 

 small black tubercle to each segment ; all the cross ridges are thickly set with 

 very fine, short black hairs, some of which^ especially on the anterior segments, 

 come from minute black tubercles, but most rise from a pale black rounded spot, 

 without tubercle ; the under side whitish, outside feet and legs yellow-green, 

 above to the band less yellow, more green ; head sub-globose, broad as high, nar- 

 rowing at top, and a little depressed at suture, broad at base ; color white and 

 pale green, with a pale black patch on the forehead on either lobe, and one below, 

 crossing the triangle ; on each upper patch is a triangle of large black tubercles 

 and on lower one two on either side the suture ; many small white tubercles 

 cover the face. (Figs./ to/*.) From fourth moult to pupation about five days; 

 from laying of egg to pupation about nineteen days. 



Chrysalis. — Length .72 to .78 inch ; slender, the abdomen long, round, taper- 

 ing to a point, the head case surmounted by a long tapering process, so that alto- 

 gether the shape of the two ends is much the same ; in some examples the dorsal 

 outline is i-egularly arcuated as in Fig. h ; in otliers the mesonotum is slightly 

 prominent, and the outline is less regular, as at /r; on ventral side the thoracic 

 segments form a prominent sub-triangular projection, compressed laterally, and 

 covered by the wing cases ; color generally of a pale yellow-brown, with a reddish 

 tint, mottled with white and darker brown about mesonotum, the process at head 

 brown ; the wing cases more or less dotted and streaked black ; on abdomen a 

 dorsal row of black dots, two to four on a segment, varying ; and a sub-dorsal 

 row of dots or points. (Figs. U^, 1^, much enlarged, h showing the natural size 

 in outline.) The chrysalis passes the winter, and the butterfly comes forth the 

 following spring. 



In Volume II. 1878, I gave all the particulars I had been able to learn of this 

 species. No one was known to have bred it, and nothing was reported of its pre- 

 paratory stages, except that Mr. Boll, in Texas, had seen the female laying eggs 

 on Cardamine. Of late years, however, some of the Washington lepidopterists had 

 become acquainted with the full history, and Mr. Henry F. Schonborn, of that 

 city, kindly undertook, in 1886, to supply Mrs. Peart with eggs, larva', and food 



