NEW AMERICAN CYNIPIDS FROM GALLS—WELD 5 
Genus PHYLLOTERAS Ashmead 
PHYLLOTERAS SIGMA, new species 
Female—Antlike, black. Head finely coriaceous, face pubescent; 
from above massive, length to width to width of thorax as 19:31:19, 
occiput concave, slightly broadened behind eyes; from in front higher 
than broad, interocular area broader than high, malar space 0.5 eye 
without groove; antennae 13-segmented, lengths as (scape) 9:5:11: 
10:9:8:7:7:6:6:5:5:5:10. Sides of pronotum coriaceous. Meso- 
notum flattened, faintly coriaceous; mesoscutum wider than long, 
without distinct grooves; scutellum with a transverse groove at base. 
Wingless. Middle and hind coxae elongated. Hind tibia shorter 
than tarsus. Hind metatarsus as long as the three following. Claws 
with a weak tooth. Propodeum in profile continues the curvature 
of the thorax. Abdomen longer than head plus thorax as 73:45, its 
height to width as 52:23, lengths of tergites along dorsal curvature 
as 22:18:12:17:17:7, ventral spine five times as long as broad in 
side view, ventral valves protruding horizontally, ovipositor hooked 
at tip. With width of head used as a base, the length of mesonotum 
ratio is 0.55, antenna 3.1. Length of two specimens 1.7 and 2.05 mm. 
Differs from rubdina Gillette in having a narrower, nearly bare 
thorax without evident parapsidal grooves. 
Types.—U.S.N.M. No. 56374: Type. Paratype in Weld collection. 
Host.—Quercus alba. 
Gall (pl. 2, fig. 22).—Sessile on underside of leaf near edge in 
the fall. Fusiform, flattened, the ends slightly curved in reverse 
directions, up to 4 mm. long by 2 mm. wide, with the larval cell in a 
depression in the center. It starts to develop late in June. Rare. 
Habitat.—East Falls Church, Va., is the type locality. From galls 
collected October 22, 1940, a living adult was found in out-of-door 
breeding cage on March 7, 1942. Galls have been seen at Vienna, Va., 
and Cabin John, Md.; at Ithaca, Manorville (Crosby), and Nyack 
(Zabriskie), N. Y., and at Washington, D. C. (Pergande). Bassett 
collected galls in Connecticut. 
Genus LIODORA Foerster 
LIODORA VISCIDA, new species 
Female.—Pale yellow, ocellar area and flagellum brown. Head 
smooth, shining; from above transverse, not so broad as thorax, cheeks 
not broadened behind eyes; from in front interocular area as broad 
as high, malar space 0.28 eye without groove or striae, antennae 14- 
segmented, lengths as (scape) 10:6:14:11:10:10:9:8:7:7:7:6:6:9. 
Sides of pronotum pubescent, shining. Mesoscutum highly polished, 
smooth, almost bare, parapsidal grooves deep, smooth, percurrent, 
