196 PAMPHILA LINEA. 



them soon disappeared, but one survived till the middle 

 of November ; it was then only about 2 mm. in length, 

 so I must have mismanaged it. In July and August of 

 1875 and 1876 I caught a number of the butterflies, 

 and confined them, but could not induce them to part 

 with a single egg ; at last in 1876 I took some recently 

 dead butterflies and carefully squeezed the eggs through 

 their ovipositors, and in each case the egg which first 

 came out proved fertile, but no more. The larvae 

 began to hatch on August 15th, they soon spun little 

 ropes of silk across the blades of grass, and made little 

 web coverings for themselves, but they would not feed, 

 and an accident soon after befel their cage, and I saw 

 them no more. 



The egg is not at all like that of P. sylvanus, but is 

 considerably smaller, of a long oval figure, half as long 

 again as wide, the shell glistening, devoid of ribs or 

 reticulation ; at first white, then turning dull yellowish, 

 and at last paler again with the dark head of the larva 

 showing through. The young larva eats part of the 

 empty egg-shell ; in shape it is slender, cylindrical, 

 even in bulk, the head longer than the second segment 

 but scarcely wider ; the skin very smooth, no bristles 

 except on segments 2 and 13, and some very short 

 ones on the head ; colour pale dull yellow, with a faint 

 dorsal vessel ; head dull pale brown, and a faint 

 brownish crescent-shaped collar on the second segment. 

 (J. H., 25, 9, 85.) 



Pamphila sylvanus. 



Plate XVII, fig. 4 (see ante, p. 141). 



In 1875, June 26, I caught and confined several 

 butterflies, some of which laid eggs about July 1st, 

 and the larvae were hatched July 13th; they chose 

 cock's-foot grass tor food, and rested in the middle of 

 a blade, fastening its edges across with five or six dis- 



