10 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
toothed. Abdomen shining, bare except on tergites VII and sides of 
II, length to height to width as 26: 23: 21, lengths of tergites along dor- 
sal curvature as 51:19:14:9:8:11. Ventral spine tapering, as long 
as hind metatarsus. With width of head used as a base, the length of 
mesonotum ratio is 1.8, antenna 4.1, wing 4.4. Length 2.55 mm. 
Type.—U.5.N.M. No. 56379: Holotype. 
Host.—An undetermined oak. 
Gall (pl. 2, fig. 17) —A depressed ribbed sphere produced in July 
on the side of acorn cup of several species of white oaks in the South- 
west. The gall measures 3.0 mm. in diameter, the ribbed structure 
showing best on underside when detached. 
Habitat—The single adult emerged on April 5, 1942, from a gall 
collected on an undetermined oak by Mrs. N. W. Capron in July 1940 
at Indian Creek, near Prescott, Ariz. Similar galls have been seen by 
the writer on Q. fendleri at Trinidad, Colo., and Shoemaker, N. Mex.; 
on Q. subturbinella at Tijeras, N. Mex., and on Q. gambelii at Flag- 
staff, Ariz. 
ANDRICUS FLAVOHIRTUS Beutenmueller 
Anéricus flavohirtus BEUTENMUFLLER, Insecutor Inscitiae Menstruus, vol. 1, p. 124, 
1913. 
In Proc. U. S. Nat. Mus., vol. 68, art. 10, p. 91, 1926, I erroneously 
transferred this species to Callirhytis. An examination of the holotype 
now in the National Museum shows that the claws are toothed, and 
the species should be retained in Andrvcus. 
ANDRICUS FORMOSALIS, new species 
Female.—Black; front and middle tibiae, all tarsi, and antenna 
beyond scape yellowish. Head from above transverse, not quite so 
broad as thorax, vertex granulate, cheeks breadened behind eyes, 
occiput concave; from in front higher than broad, malar space one- 
third eye, radiating ridges about mouth, antennae 14-segmented, 
lengths as (scape) 12(5):7:10(8):9:8:8:7:7:6(5) :6:6:5.5:5.5: 
8 (4). Pronotum medially smooth, sides rugose with parallel ridges 
at posterior margin. Mesoscutum bare, coriaceous, more or less ru- 
gose behind, parapsidal grooves percurrent but deeper, broader, 
smoother, and margined behind, median short, becoming an almost 
percurrent streak, anterior parallel and lateral lines distinct, de- 
pressed. Disk of scutellum rugose, pits deep, smooth, triangular, 
widely separated. Carinae on propodeum straight, included area 
rugose. Mesopleura entirely covered with parallel ridges. Tarsal 
claws weak, toothed. Wing hyaline, nonciliate, pubescence short, 
veins yellowish, first abscissa of radius arcuate, radia! cell slightly 
open at base and apex, areolet reaching about one-fifth way to basal, 
cubitus reaching basal. Abdomen (somewhat swollen in degreasing) 
