144 ' ENTOMOLOGICAL NEWS. [April, ’08 
nearly adult and were probably the stem mothers. During 
the earlier part of the year it required twelve to fourteen days 
for them to become mature, but later in the warmer summer 
months the period for maturity was much shorter. The num- 
ber of young per female was, in two instances, 106 and 109, 
respectively. The length of time required to give birth to 
these young were I5 and 21 days respectively, or an average 
of 7 plus in the first case and 5 plus young per day in the 
second. 
The lice were evidently partial to the young tender shoots, 
but later in the summer when these became crowded, some 
of the aphids were obliged to secure their food supply from 
the leaf petioles or the undersides of the leaves. 
The first adult winged form was noticed May aist, it hav- 
ing been born May oth or toth. The lice continued to in- 
crease in numbers until about the middle of July, but from 
then until about August 12th, only occasional specimens were 
found, the others having become winged and having prob- 
ably migrated to other places. They began to be more num- 
erous, however, August 12th, and by August 19th were com- 
paratively abundant, most of them being immature individ- 
uals. This second appearance of the aphids in numbers was 
not due to return migrants, but rather to the progeny pro- 
duced by the few wingless forms that had remained. I was 
unable to follow up the appearance of the bisexual genera- 
tion, but when examinations of the vines were made the first 
part of October, wingless oviparous females and winged males 
were found im copula, and also a few eggs deposited upon 
various parts of the vine. Later in the fall but occasional 
eggs could be found upon the vines and I concluded that the 
ant (Cremastogaster lineolata) had carried them to its nest. 
From the very first appearance of the aphids and throughout 
the summer this ant had been in constant attendance upon 
them. The lice secreted, from the anus, a somewhat milky 
fluid which soon became more or less solidified. Upon the 
parts of the plant occupied by the lice many of these globules 
were usually found. 
