578 
BIONOMIC NOTES 
the correspondence is not nearly so close as in Mycalesis , Precis and 
Teracolus. However, for convenience these are usually spoken of as 
wet-season forms and dry-season forms, or even for shortness as 
“ wet ” and “ dry.” 
When at rest, with wings closed above its back, the dry-season 
insect is usually more cryptic than the wet, resembling in some 
instances red soil, in others a dead or discoloured leaf. It is notable 
that the dry-season form is commonly more marked and more per¬ 
sistent in the female sex. 
If among Neotropical butterflies similar pairs of forms are met 
with, I propose provisionally to speak of them as “ wet ” and “ dry,” 
and then to inquire to what extent they are found in the corresponding 
seasons of the year. 
Calisto zangis, Fabr. (Jamaica). Although there is some varia¬ 
tion in the size of the ocelli on the under side of the wings in my 
specimens, I am unable to divide them into seasonal forms. 
Euptychia hermes , Fabr. {camerta, Cram). In the wet-season form 
the ground colour of the under side is of a bluish-grey, the transverse 
lines are distinct and the ocelli well marked. 
In the dry-season form the ground colour is browner in tint, the 
transverse lines are faint and the ocelli are minute. 
I give, in a tabular form, a statement of all the specimens that I 
took, divided into the three classes: “dry,” “wet,” and “intermediate.” 
The specimens classed as intermediate I have attempted to divide 
according as they seem to approach nearer to one form or the 
other. Males and females are distinguished and the dates of cap¬ 
ture given. 
Eujptychia hermes , Fabr. 
Place. 
Dry. 
Intermediate. 
Wet. 
Date of capture. 
Trinidad . . . 
6 
19 Dec., 1906. 
Panama . . . 
6 
28 Dec., 1906. 
Venezuela . . 
6 6 6 9 6 
69 6669 
9 
22-29 March, 1907. 
Trinidad . . . 
... 
6 9 
1 April, 1907. 
Tobago . . . 
6 9 9 9 6 
6, 7 April, 1907. 
Trinidad . . . 
... 
6 
6 
12 April, 1907. 
Totals . 
4<J, 1? 
Id,19; 4<J,19 
66,59 
It is somewhat remarkable that the specimens from Tobago were 
all distinctly “ wet ” though the country showed every sign of extreme 
