488 
[March 
generic distinctions, differs as follows:—^The antennae are a trifle slen¬ 
derer, the legs are honey-yellow instead of dull rufous, the hind femora 
and tibiae are never obfuscated, the areolet is twice as large, and the 
sheaths of the ovipositor project like a sting about .03 inch above the 
line of the back. 
9. Black oak and Laurel oak (q. imbricaria.) Early vernal 
gall q.palustris 0. S. The galls from the Laurel oak produced nothing 
but true Parasites (^Ghalcididse)^ but as the parasites were specifically 
identical with those produced from the galls on the Black oak, and as 
the two species of oak grew side by side, each full of these galls, and 
the galls themselves were indistinguishable, I have no doubt that G. q. 
palustris inhabits the Laurel oak. 
Gall-fly. G. q. palustris 0. S. 
*(*■(' Galls on Limbs. Twigs, &c. 
10. White oak. Gall q. globulus Fitch, (autumnal.) Well de¬ 
scribed and figured by Dr. Fitch, N. Y. Rep. II, §312. 
Gall-fly, Ggnips (callaspidiai) q. globulus Fitch. I have not reared 
this, but have received $ 9 from Mr. Bassett. 
Guest gall-fly, Synerges (cynips') oneratus Harris and Fitch. 
See below. 
11. White oak. Gall Seminator Harris, (autumnal.) Well de¬ 
scribed and figured by Dr. Fitch, N. Y. Rep. II, § 315, except that, 
as noticed by Osten Sacken, {Proc. Ent. Soc. Philad. I, p. 69) the 
figure does not show the numerous “angular projections” which exist 
in nature. Bather rare near Bock Island, Ill. 
Gall-fly, Gynips seminator Harris and 0. S. I have not reared 
this but have received numerous specimens % 9 from Mr. Bassett. 
Guest gall-fly ? Gynips seminator Fitch non Harris. See above, 
pp. 464—5. Mr. Bassett says that “the galls seminator and q.ope- 
rator have not yielded flies of any sort from the first of August to 
October; yet there still in October remain in many of the cells small, 
perfect, living larvae.” {Proc. Ent. Soc. Philad. II, p. 333.) Are 
these the larvae of a guest gall-fly, or of a dimorphous 9 form of G. 
seminator, destined in either case, as suggested by Mr. Bassett, (ibid.') 
