194 VIVIPAROUS FLY. 
any had been lost during the act of capture. I put the parent fly 
and about half her progeny into spirits. They were quite active in 
the strong 95 per cent. alcohol, and lived a good while, although 
the fly soon died. 
Dr. Packard has kindly determined the species for us, and its 
systematic name is Sarcophaga carnaria Linn. (Fig. 34). Though 
ignorant of the habits of this curious fly, I resolved to make an ef- 
fort to raise the remaining larvae. They were now three hours old, 
and the little things were becoming less active because of the de- 
Fig. 34. 
The Viviparous Fly and its Pupa Case. 
siccating effect of the hot atmosphere. There was no time to lose, 
took a flower-pot, and filled it with porous or sandy earth, 
and set the pot in a saucer with. sufficient water to make it a little 
moist. Next a bit of fresh kidney fat was put on the earth. On 
this flesh I laid the tiny grubs, and was soon gratified with seeing 
the most vigorous of them instinctively recede into the folds of the 
fat, and thus disappear. A glass tumbler was next put over all, 
: and the arrangement was complete. 
Four days’ absence from home, and no observations. The larve 
were now a little over five days old and, with the exception of one, 
