132 
Psyche 
[September 
cross-vein in the fourth posterior cell, dividing off the basal 
fourth of the cell. 
Hirmoneura (Hirmoneurilla) vitalisi, new species 
Male. — A large, thickset fly, similar in appearance to 
H. austeni Lichtwardt, characterized by the abdomen uni- 
formly covered with pale yellowish pubescence, the russet- 
yellow antennae, palpi and legs, the dark brown pilosity of 
the eyes and the nearly hyaline wings. 
Integument almost uniformly dark chestnut-brown, some- 
what darker on the dorsum of the thorax, paler ventrally 
on the abdomen; hind margin of abdominal tergites, espe- 
cially the second and third, very narrowly black. Legs 
yellowish-red, the hind tibiae and tarsi darker, chestnut- 
brown. Ocellar triangle and frons black, face dark brown ; 
proboscis and palpi russet-yellow; antennae pale chestnut- 
brown, apical third of style black. Pruinosity on under 
side of thorax white. Pilosity very abundant, dense, erect; 
black and long on ocellar triangle, frons and sides of face, 
russet on palpi, white on jowls and occiput; first and sec- 
ond antennal segments with long, black hairs; pilosity of 
dorsum of thorax and abdomen uniformly pale yellowish, 
with a few black hairs on the hind margins of the second, 
third and fourth tergites ; that of under side of thorax and 
abdomen whitish-yellow, more or less matted ventrally, erect 
on the sides. Hairs of coxae and base of femora long and 
white; those of remainder of legs mostly yellowish; those 
of hind tibiae and tarsi mostly black, forming rather dis- 
tinct fringes on the sides. 
Head (Fig. 2B) large, hemispherical in profile, a little 
narrower than the thorax seen from above, about as wide 
as high seen in front. Eyes uniformly and densely covered 
with long, erect, blackish-brown hairs, contiguous over the 
upper half of the frons below the ocelli. Ocellar triangle 
short, almost as wide as long, scarcely depressed behind the 
anterior ocellus. Antennae (Fig. 2C) small, crowded to- 
gether; first segment short, slightly swollen, about twice 
the length of the second ; second segment very short, trans- 
verse; third segment flattened, triangular in outline, wider 
than the second and about as long as wide. Style longer 
