584 
BIONOMIC NOTES 
Terias delia, Cram. 
Place. 
Dry. 
Intermediate. 
Wet. 
Date of capture 
Savanilla, Colombia . . 
... 
9 
6 
22 Dec., f. 
lydia. 
Colon, Panama .... 
... 
6 6 6 6 9 
28, 29 Dec., 
f. lydia. 
Constant Spring, Jamaica 
6 6 9 9 6 
6 6 6 9 6 
6 6 6 
1-8 Jan. 
Castleton, Jamaica . . . 
• • . 
9 
6 
12 Jan. 
Mandeville ,, ... 
9 
6 
22 Jan. 
Mackfield ,, ... 
9 9 9 69 
6 
6 
24-26 Jan. 
Montego Bay, Jamaica . 
9 
9 
4 Feb. 
Walderston, „ 
9 6 
12 Feb. 
Port Antonio, ,, 
9 
25 Feb. 
Constant Spring, ,, 
9 
7 March. 
Ancon, Panama .... 
9 9 9 
6 6 
11, 12 Mar. 
Savanilla, Colombia . . 
9 
15 March. 
Caracas, Venezuela. . . 
9 9 
... 
18-25 Mar. 
Total . . . 
56, 169 
86,3?; 19 
10 6 ,2 $ 
An examination of this table shows clearly that the “ dry ” form 
became more prevalent as the season advanced, whereas the “ wet ” 
form disappeared. The first seven specimens, taken at Savanilla 
and Colon, December 22nd-29th, are of the form lydia , Feld. The 
last specimen taken, at Caracas, March 25 th, is of the extreme 
“ dry ” form persistens, Butl. 
A male taken above Constant Spring, c. 1000 ft., on January 1st, 
another male taken a little to the west of Constant Spring, c. 500 ft., 
on January 8 th, and a male taken near the railway at Panama on 
March 12th, all approach the form lydia, Feld., in having the longi¬ 
tudinal black streak broader than usual. On the other hand, the 
width of the streak in the form lydia varies considerably. 
An aberrant male of the “dry” form taken on the foot-hills 
above Constant Spring on January 1st, is entirely without the black 
streak, the orange scales alone marking its position. 
Terias elathea , Cram. (Jamaica, Venezuela), appears to be specifi¬ 
cally distinct from delia , but is certainly very closely allied to 
it; the females are difficult to distinguish, and some specimens of 
the male sex not easily separable. What I take to be the “ wet ” 
form has the under side irrorated with grey; the “ dry ” form 
with reddish. 
