O so 
Explanation of 
(. Euchloe cethura, Felder, var. morri- 
soni, Edwards, 
2. Euchloe creusa, Dbl.-Hew., $, un¬ 
der side. 
3. Euchloe ausonides, Boisduval, $ , 
under side. 
4. Euchloe sara, Boisduval, var. flora, 
Wright, Jh 
5. Euchloe sara, Boisduval, var. flora, 
Wright, 9 . 
6 . Euchloe sara, Boisduval, var. julia , 
Edwards, 9 > under side. 
7. Neophasia menapia, Felder, 
8 . Pier is beckeri, Edwards, 
. Pieris beckeri, Edwards, 9 • 
. Pieris protodice, Boisd.-Lec., 
Plate XXXIV 
11. Pieris protodice, Boisd.-Lec., 9 
12. Pieris sisymbri, Boisduval, 
13. Pieris occidentalis, Reakirt, 
14. Pieris virginiensis, Edwards, (f. 
15. Pieris napi, Esper, var. pallida , 
Scudder, 9 - 
16. Pieris napi, Esper, var. oleracea-hie- 
malis, Harris, <JL 
17. Pieris napi, Esper, var. bryonice, 
Ochsenheimer, 9 * 
18. Pieris protodice, Boisd.-Lec., var. 
vernalis, Edwards, 
19. Pieris napi, Esper, var. acadica, Ed- 
wards, 9- 
20. Kricogonia lyside, Godart, 
21. Kricogonia lyside, Godart, 9 * 
