1868.] 
329 
Hinny cells I have examined,— in the cell, but in the corklike substance 
around it, which was much eaten by them. 
Cynips q. palustris Osten Saeken.® 
I have galls and gall-flies that doubtless belong to this species. The 
galls are from Quercus ilicifolia. The flies differ from the species de¬ 
scribed by Baron Osten Sacken, but not more than different individual 
which I have examined. The wing veins are all, except the subcostal 
and 1st transverse, nearly colorless, and the areolet in most specimens 
very indistinct. Female antennae 14-, and the male 15-jointed. In 
some specimens there are pale brown bands across the abdomen where 
the segments meet; in others the abdomen is black. 
The galls are often found on the aments of this oak, as well as on the 
leaves. The sterile aments of the oak wither and fall off very soon 
after flowering, but those which produce the galls remain green long 
after the others have have fallen. 
Cynips q. fntilis Osten Sacken. 
I have reared a few flies from the galls which answer the description 
of the above species. A large proportion of the insects produced from 
these galls were parasites. 
Grails closely resembling the above from Quercus montana (Q. prinos, 
var monticola. M ichaux) are abundant, but from those I have collected 
only parasites have been produced. Are they the galls of C. q. pnpH- 
lata Osten Sacken ? 
Quercus tinctoria. 
Large oak apple galls, an inch and a half in diameter, are com¬ 
mon on this species of oak. They were fully grown so early as the 
middle of June, but no flies appeared till to-day (Oct. 24th). On cut¬ 
ting them I found the flies fully grown and lively. They agree, per¬ 
fectly, with the description of C. q. aciculofa. 0. S. 
Quercus coccinea? 
The oak apple gall from this tree and the insects produced from 
Is not the gall of this species one of those referred to by Westwood (Mod. 
Glass. VoL 2d, p. 131), as described by Bose? Bose, it seems, described eight 
species of oak galls from Carolina, but was not able to rear any of the inhabi¬ 
tants. 
