X MONTHLY PROCEEDINGS 



Oaks and their Galls," p. 57, published in the Proc. Entom. Soc. Phila. 

 1861. He says: 



'■'■Quercus virens, Live Oak. — Small, globular galls on the under side 

 of the leaf. Diam. 0.15 to .2." Pale brownish when ripe; filled inside 

 with a spongy, cellular mass, which is more dense than that of the pre- 

 ceding {C. conJiue7is), and not unlike the pith of a reed in texture. 

 Single kernel in the centre. 



" I am indebted for these pretty galls to Dr. Foreman, who brought 

 them from Greorgia, and although I do not know the fly, I have no doubt, 

 from the structure of the gall that it is the produce of a C^nips." 



In this supposition my researches prove him to be correct. Early 

 this winter, I procured specimens of this gall from a tree, the leaves of 

 which were literally covered with them, and from which I have bred the 

 gall-fly and its parasites, the latter will be described in a future paper. 



Cynips q. virens n. sp. 



Galls. — Small, globular, the size of a pea or slightly larger ; from two 

 to ten, attached to the under side of the leaf; pale brownish in color, 

 filled inside with a dense, yellowish-brown, spongy, cellular mass. A single 

 kernel in the centre. Diameter 0.15 to 0.25 inch. 



Gall-Fly. — 9 • — Length .15 inch. Head reddish-brown, finely punctate, pubes- 

 cent; mandibles black; antennae 13-jointed, reddish-brown, first two joints some- 

 what fulvous, nearly connate, third longest, about five times as long as second, 

 following joints gradually decreasing in size, excepting thirteenth which is slightly 

 longer than twelfth and infuseated; thorax brown, coarsely punctate, pubescent; 

 parapsidal grooves distinct, two longitudinal grooves on preescutellum blackish ; 

 scutellum round very finely rugoso-punetate, pubescent; wings hyaline and re- 

 markably long, veins brownish and thick, radial area almost closed, areolet distinct, 

 petiolated, abdomen dark reddish-brown, all segments visible, basal half of second 

 light reddish ; legs light reddish-brown, posterior femora slightly infuseated. 



Described from one bred specimen. Although I have nearly two 

 hundred specimens of the galls in boxes, I have raised but a single 

 Ci/iiips, and that issued from the gall early in February. 



The Live Oak Potato Gall. 



By the above name I designate a gall which is found quite abundantly 

 on the twigs and branches. It is evidently the same mentioned by 

 Baron Osten Sacken (loc. cit. p. 259, 1862-). He says: 



"Quercus vlrens, Live Oak. — Woody swellings on the limb. The 

 specimen communicated by Mr. Grlover is _a fragment of a branch about 

 one and one-half inches long, with two such swellings ; the one is rounded 

 about 0.7 long and 0.5 broad ; the other much smaller. I opened the 

 latter and found on the inside a small hollow from the structure of which 

 I have no doubt that the gall is the produce of a Oj/nips." 



