NEW AMERICAN CYNIPIDS FROM GALLS—-WELD 3 
Types.—U.S.N.M. No. 56371: Type and seven paratypes. Para- 
types in Chicago and American Museums of Natural History, Museum 
of Comparative Zoology, Academy of Natural Sciences of Philadel- 
phia, and California Academy of Sciences. 
Host.—Quercus gambeliz. 
Gall (pl. 2, fig. 16).—Ellipsoidal, dark colored, 1.2 by 0.9 mm. by 
0.6 mm. high, firmly attached to underside of leaf in numbers close to 
main veins. Kach is covered, except in center where there is a shght 
papilla, with radiating straight silvery single-celled hairs about 0.5 
mm. long. Exit hole near one end. 
Habitat—The type material was collected by Mrs. N. W. Capron in 
Oak Creek Canyon, Ariz., in November 1937 when adults were then 
emerging. Galls were seen at Grand Canyon also. Similar galls 
were collected on Q. subturbinella at Camp Creek and Mayer, Ariz. 
NEUROTERUS CLAVENSIS, new species 
Female.——Black; region around mouth, base of antennae, trochan- 
ters, knees and tarsi yellowish. Head coriaceous; from above trans- 
verse, as broad as thorax, occiput concave; from in front interocular 
area square, malar space 0.3 eye with groove, cheeks broadened be- 
hind eyes, antennae 13-segmented, lengths as (scape) 11(5):6: 
13(2) :9:8:8:8:8:7:7:7:6:8. Mesoscutum as broad as long, with- 
out grooves, microcoriaceous as are scutellum, sides of pronotum, and 
mesopleurae. Wing pubescent and ciliate (except on proximal half 
of front margin), first abscissa of radius strongly angulate and 
clouded, areolet reaching one-fifth way to and cubitus reaching basal 
below middle, a faint cloud in first cubital cell and below the break in 
median, Abdomen collapsed, second tergite reaching about one-third 
way back. Ventral spine in side view scarcely longer than broad, 
sheaths upturned. Tarsal claws simple. With width of the head 
used as a base, the length of mesonotum ratio is 1.1, antenna 2.2, wing 
3.7, ovipositor 3.5. Length 1.3-2.15 mm. Average of 28 specimens 
1.75 mm. 
Types.—U.S.N.M. No. 56372: Type and three paratypes from Flag- 
staff, Ariz. Other paratypes are from Prescott, Ariz., and from 
Las Vegas, N. Mex. Paratypes in the Chicago and American Mu- 
seums of Natural History, Museum of Comparative Zoology, Acad- 
emy of Natural Sciences of Philadelphia, and California Academy of 
Sciences. 
Host— Quercus gambelit. 
Gall (pl. 2, fig. 21) —Resembles the white-oak club gall externally 
but with a different internal structure, having a compact nest of cells 
on one side imbedded in brownish corky tissue. 
