14 
[March 
On this spot, when full fed, the larva spins a circular whitish cocoon. 
The head of the larva is circular; body flattened, tapering posteriorly. 
Head dark brown ; second segment with a dorsal dark brown spot divid¬ 
ed by a paler vascular line; body pale yellowish-green, immaculate. 
I have before me a single specimen whose wings are not fully grown. 
Description of certain species of DIURNAL LEPIDOPTERA found within 
the limits of the United States and British America. No. 1. 
BY WM. II. ED^VARDS. 
1. 
CoLiAs Alexandra, nov. sp. 
7. Hesperia 
Logan, nov. sp. 
2. 
Thecla Clothilde, nov. sp. 
8 . 
Delaware, nov. sp. 
3. 
Hesperia Mystic, nov. sp. 
9. 
Uncas, nov. sp. 
4. 
“ Huron, nov. sp. 
10 . 
OcoLA, nov. sp. 
5. 
coNSPicuA, nov. sp. 
11. 
M AND AN, nov. sp. 
6. 
Pontiac, nov. sp. 
12. 
•' 
Omaha, nov. sp. 
13. Hesperia Wyandot. 
nov. sp. 
COLIAS 
Alexandra, nov. sp. 
Male. 
Expands from to 
inches. 
Upper 
side bright lemon- 
yellow, with a greenish tinge on the 
inner half of secondaries; base of 
wings and costa of primaries slightly powdered with black scales; fringe 
yellow. 
Primaries have a broad black marginal band, the inner edge of which 
is usually not crenated, but is parallel to the margin, with a small an¬ 
gular projection upon the submedian interspace; at the apex it curves 
slightly and extends a little way along the costal margin, less than in 
C. Pliilodice; on the inner margin it terminates as in that species; this 
band is crossed to the fringe by the yellow nervules; on the arc is a 
narrow black mark, in length not exceeding half the arc, sometimes a 
little dilated and then enclosing a yellow point. 
Secondaries have a narrow margin terminating acutely before the 
anal angle, crenated within and crossed by the yellow nefvures; some¬ 
times on the arc is a minute spot of paler color, but this is usually 
wanting. 
Under side: primaries same yellow as above, pale at apex and on in¬ 
ner margin; costal margin slightly powdered with minute black scales 
