184 Mr. A. G. Butler on the 
of the secondaries less distinctly spotted with white than in 
the northern form. The expanse of wings varies from 76-106 
millim., the females being not unfrequently dwarfed. 
St. Thomas, March 1878. 
The northern form, A. pleaippus, is the type found in the 
Australian region. 
NYMPHALINZ. 
2. Dione vanille. 
Papilio vanille, Linneus, Mus. Lud. Ulz. p. 806 (1764). 
St. Thomas, March 1878. 
The North-American species, which has hitherto stood as 
a synonym of this butterfly, being perfectly distinct both in 
size, form, pattern, and colour, must henceforth stand as 
Dione passiflore (under which name it was figured by Abbot). 
3. Junonia cenia. 
Junonia cenia, Hiibner, Samim. exot. Schmett. (1816-24). 
St. Thomas, March 1878; Bermuda, in April. 
Hrzriconin#. 
4, Fleliconius charithonia. 
Papilio charithonia, Linnteus, Syst. Nat. i. p. 757 (1767) ; Cramer, 
Pap. Exot. ii. pl. exci. F (1779). 
St. Thomas, March 1878. 
The examples from St. Thomas are typical, and therefore 
distinct from those of Mexico and St. Domingo; the latter 
represent a larger longer-winged insect, with much narrower 
yellow bands; why it should not have been considered dis- 
tinct by lepidopterists generally it would be hard to say. 
Lycenide. 
5. Tmolus columella. 
Hesperia columella, Fabricius, Ent. Syst. iii. 1, p. 282. n. 83 (1798). 
g. St. Thomas, March 1878. 
Papilionide. 
PrerinZ. 
6. Appias Poeyt ? 
Appias Poeyi, Butler, Proc. Zool. Soc. 1872, p. 49. 
3d. St. Thomas, March 1878. 
