146 Psyche [August 
FamILty PTEROMALIDAE. 
SUBFAMILY PTEROMALINAE. 
TRIBE EUTELINI. 
Muscidifurax gen. nov. 
Type: M. raptor sp. nov. 
Female. Normal in stature and aspect for the tribe. The general aspect 
of Tritneptis Girault, 1908, and of Celopisthia suborbicularis Prov. 
(Ashm.); moderate in size, the head rounded and prominent; submetallic, 
black. 
Head (cephalic aspect) subcircular, moderate in size, the line of the 
vertex, however, somewhat flattened, slightly bi-lobed, the facial (mesal) 
impression containing the scapes distinct, moderately deep, but gentle, mod- 
erately defined and narrow, its lateral margins obtuse, the scrobes sub- 
obsolete dorsad, distinct near the bulbs, the latter separated; face broad, 
the clypeus sub-hemispherical, its surface not impressed below the face, 
but with close, fine, longitudinal, converging striz, its sutures obsolete, 
its apical (ventral) margin truncate but laterad, on each side of the 
comparatively broad entire mesal portion of the margin near the lateral 
termination of the sclerite is a small subacute notch or incision; (lateral 
aspect) head distinctly bulged or convex below (ventrad) its middle, form- 
ing in the cephalic aspect, a rounded, convex facial prominence just ven- 
trad of the insertion of the antenne; head widest just ventrad of the 
ventral ends of the eyes and then ventrad of the insertion of the antennez 
obliquely truncate (cephalo-caudad), the line of the face sloping gently 
from the vertex to the antennal insertions and then abruptly, obtusely 
changing angle and nearly truncately cut off; obovate; eyes elliptical-ovate, 
about a fourth longer than the gene, practically naked, but bearing sparse, 
very minute, erect hairs; head with no acute margins; genal sulcus obso- 
lete. (Dorsal aspect) head somewhat wider than the greatest width of the 
thorax, about three times wider than long at the vertex, the latter slightly 
narrowed at the meson, but rounded and slightly convex at its apex at the 
ocelli, the occipital margin concave, narrowly rounded; the cephalic margin 
of the vertex obscure, subacute; the cephalic ocelli circular, larger than the 
ovate lateral ones, all in a flat or obtuse triangle in the center of the 
vertex, distant from the eyes, the lateral ocelli about twice the distance 
from the eye margins on each side as they are from the cephalic ocellus, 
and a little less than that distance from each other than each is from the 
cephalic ocellus, the group near the obscure cephalic margin of the vertex; 
visible margin of the eyes convex, entire; eyes widely separated. Antenne 
inserted about two-thirds of the way down to the clypeus, below the middle 
of the face and about on an imaginary line drawn between the ventral 
ends of the eyes, or slightly ventrad of it, the scapes long and slender, 
1 Muscidae and furagr, inclined to steal. 
