43 
anal spiracle nearly as long as ovipositor. General color black, some- 
what metallic, notal sclerites of thorax having a greenish luster, while 
abdomen appears bluish; antennae black, with funicle joints 2 and 4 
silvery white, and apical three- fourths of club light brown, with a 
somewhat silvery tinge. Head in life, and shortly after the insect has 
issued, whitish, with occiput yellow-brown and occipital line black; 
brown patch including ocelli. Eyes bright red. In dry mounts the 
head shrivels considerably and becomes light brown in color. Legs 
dark brown; all tibiae with a silvery white distal apex. Spurs of mid- 
dle tibiae black; tarsal joints 1, 2 and 5 dark brown or black; 3 and 
4 whitish. Fore-wings with proximal three-fourths deeply and uni- 
formly infuscated, except two light longitudinal streaks near base; 
apical one-fourth hyaline; discal cilia very minute, but closely placed; 
sparse, however, toward distal anal portion and toward base of wing. 
Eedescribed from ten freshly issued females reared July 6 and 7, 
1894, from female specimens of Chionaspis furfurus, District of Colum- 
bia. Mr. W. Gr. Johnson has also reared two females from a species of 
AspkUotus on pear and apple at Champaign, 111. 
In view of these rearings, as well as from the well-known and quite 
uniform host habit of the group, it becomes probable that Mr. Ash- 
mead's type came from a scale insect in the near vicinity of or perhaps 
hidden by the Clisiocampa eggs from which he thought he reared it. 
PHYSCUS new genus. 
Type: Coccopliagus varicornis Howard. 
Female. — Antennae 7-jointed; inserted at border of clypeus; scape 
slender; pedicel as long as first funicle joint; second and third funicle 
joints subequal and each longer than joint 1; club long, ovate, acute, 
2-jointed; joint of division before middle. Eyes hairy. Mesoscutar 
parapsides very narrow; axillae also narrow; scutellum nearly as long 
as broad. Discal cilia of fore-wings uniform in distribution, but those 
proximad of stigma shorter and considerably more delicate than those 
distad; marginal vein about as long as submarginal; stigmal short, but 
with a well-defined neck and with a rounded knob; radial angle nar- 
row. Marginal cilia rather short; discal cilia of hind-wing very deli- 
cate and rather sparse. First tarsal joint of front and hind legs as 
long as two following joints; first tarsal joint of middle legs as long 
as three following joints; middle tibial spur long. Ovipositor slightly 
extruded. 
Male. — No fresh or balsam-mounted males are at hand, and charac- 
ters can not be studied from the poor material which we have. 
Physcus varicornis (Howard). 
Coccopliagus varicornis Howard. Ann. Rept. Dept. Agr. 1880, p. 360. 
lemale. — Length, 0.7 mm.; expanse, 1.4 mm.; greatest width of fore- 
wing, 0.25 mm. Mesonotum very faintly longitudinally shagreened> 
