496 
[March 
(pp. 464 & 483.) Thus we have certainly one and perhaps two autumnal 
galls inhabited by this Gruest gall-fly, q. ficus and q. pisum^ and one ver¬ 
nal gall, q. spongifica; whence it follows that the insect is double- 
brooded. It was shown that the gall spongifica must be punctured by 
the Si/nophrus after that gall has acquired some considerable size, say 
towards the middle of May, and not at the time when the egg that 
produces it is inserted in the bud, viz., in the June of the preceding 
year, (p. 460.) We can understand now what becomes of the Si/no- 
phrus between the June of one year, when it emerges from the spon¬ 
gifica gall, and the May of the following year, when it is necessary for 
it to be on hand to puncture the young and tender spongifica gall. 
The intermediate time is evidently passed in the larva aud pupa state 
in such autumnal galls as q. ficus. 
17. Synophrus albipes n. sp. 'S 9 • 
Differs from S. lacviventris O. S., only as follows 1st. The entire 
body, including the head with the exception of the palpi which are 
whitish or pale yellowish, is always black. 2nd. The antennae 9 are II- 
jointed, (not 13-jointed,) the last joint ^ longer than the preceding 
one. 3rd. The 2nd abdominal joint always covers the terminal joints 
both in % and 9 • 4th. The legs are whitish, scarcely tinged with yellow, 
with the tarsal tips brown, but otherwise immaculate except in a single 
S , where the hind femora and tibiae and in a less degree the interme¬ 
diate ones, are brown. 5th. The sheaths of the ovipositor do not pro¬ 
ject beyond the line of the back, or scarcely and in a single 9 only? 
though the ovipositor often projects from between them, which is not 
seen in any of my five Iseviventris 9 • —Length % .04—.07 inch, 9 .07— 
.09 inch. Twelve S , eight 9 , bred from the gall q. flocci {=q. lanaf 
Fitch), on the 4th of August, when I obtained 41 'S , 9 9 , and other 
specimens August 1st and after August 4th, all from galls of the pre¬ 
ceding year’s growth. Hence it would seem that this species is not 
double-brooded like Iseviventris. 
18. Amblynotus ensiger n. sp. ? {=A. petiolicola? 0. S.) % 9 Head 
with the face opaque with the appearance of short whitish pubescence, and a 
glabrous slightly elevated black stripe descending to the mouth from between 
the origin of the antennae; palpi honey-yellow ,* vertex glabrous, slightly po¬ 
lished. Antennae 9 with joint 3 shorter than usual, % l5-jointed with 13—15 
subequal, 9 12-jointed with 12 fully equal to 10 and 11 put together, and occa¬ 
sionally with indications of a connate medial suture on 12, % 9 honey-yellow 
