368 
Indiana University Studies 
Dryophanta gemmula Mayr, 1881, Gen. gallenbew. Cynip.: 35, 36. Bas- 
sett, 1882, Amer. Nat. 16: 246. Ashmead, 1885, Trans. Amer. Ent. 
Soc. 12:296, 304. Mayr, 1886, Verh. zoo.-bot. Ges. Wien 36:371. 
Cresson, 1887, Trans. Amer. Ent. Soc. 14: suppl. 179. Ashmead in 
Packard, 1890, 5th Rpt. U.S. Ent. Comm.: 106, 110. Dalla Torre, 
1893, Cat. Hymen. 2: 52. Kieffer, 1901, Andre Hymen. d’Europe 
7(1) : 621. Dalla Torre and Kieffer, 1902, Gen. Ins. Hymen. Cynip.: 
52. Beutenmuller, 1904, Bull. Amer. Mus. Nat. Hist. 20: 25. Beuten- 
miiller in Smith, 1910, Ins. N.J.: 599. 
Dryophanta gemula Ashmead, 1887, Trans. Amer. Ent. Soc. 14: 131. 
Felt, 1906, Ins. Aff. Pk. and Woodl. Trees 2:713. Beutenmiiller, 
1911, Bull. Amer. Mus. Nat. Hist. 30: 358, pi. 16 figs. 11, 12. Thomp- 
son, 1915, Amer. Ins. Galls: 11, 37. Felt, 1918, N.Y. Mus. Bull. 
200: 75, fig. 68 (11, 12). 
Diplolepis gemmida Dalla Torre and Kieffer, 1910, Das Tierreich 24: 359, 
807, 822, 835. 
[ Diplolepis gemula err. det. Weld, 1926, Proc. U.S. Nat. Mus. 68 (10) : 
26; and Weld in Leonard, 1928, Ins. N.Y.: 969, = C. pezomachoides 
erinacei form bicolens and some undescribed forms.] 
FEMALE. — Head, thorax, and abdomen piceous to black, the latter 
uniformly piceous black; the antennae rich brown with the first two 
segments yellowish, the legs amber yellow except on the hind coxae 
which are brownish basally; mesonotum mostly smooth and naked, very 
shining, very scantily hairy and sparingly roughened just lateral to and 
anteriorly about the parapsidal grooves; the grooves entirely distinct 
to the pronotum; the anterior parallel and lateral lines and median 
groove practically absent; scutellum entirely, rather finely rugose ex- 
cept in the narrow foveal groove, the ridge separating the scutellum 
from the rest of the mesonotum fine but distinct; the mesopleuron al- 
most entirely smooth, naked, and shining; areolet of moderate size or 
larger; all of the cells clear except for a trace of a blotch at the base 
and two blotches nearer the apex of the cubital cell; length 1.5 to 2.0 
mm. Figures 342, 345, 405. 
MALE. — Differing from the bisexual female as described for the 
genus. With the basal segments of the antennae light brownish rufous, 
the whole anterior half of the scutellum smooth and shining, the blotches 
absent from the cubital cell. Figure 343. 
GALL. — A small, thin-walled, elongate, egg-shaped cell in a bud. 
Monothalamous, about 2.0 to 3.0 mm. long, regular in form, nearly egg- 
shaped but somewhat more elongate, pointed apically, truncate at base; 
microscopically roughened; older galls dark brown to blackish. Very 
thin-walled, brittle when dry, without a distinct larval cell. Singly, 
deep and nearly hidden in the leaf or flower buds, or at the apices of 
young stems or on the main stems of the staminate flowers and sur- 
rounded by a few deformed bracts; on Quercus prinoides. Figures 305, 
306, 335. 
