NOKTU AMKIMCAN DIPTKKA. 
3G5 
I.ACX’0I»I50^»0I»A«- n. gen. 
Belongs in the Taehinina? s. str. Has much the general facies of 
a Sarcophagid. Head, thorax and abdomen of nearly same width, 
hlyes hare, extending about two-thirds distance to the oral margin. 
Front somewhat prominent, about one-third the width of head, face 
much wider; a pair of bristles at each vertical angle, the inner long 
one directed inward and backward, almost decussate with the corre- 
sponding one on the other side, the small one directed outward ; suc- 
ceeding frontal bri.stles directed inward, decussate, except the poste- 
rior two pail’s; three orbital bristles, sometimes a well developed 
fourth one; short hairs outside the frontal bristles. Sides of face of 
moderate width, with a row of bristles from the base of antenme to 
the lower border of eyes, otherwise bare. Face much hollowed, not 
long, rather wide, fiicial ridges bristly nearly half the way up from 
the oral margin, the decussate vibris.sse being inserted in the midst 
of these, at a constriction of the facial ridges, and considerably re- 
moved from the oral margin ; cheeks bare on forward portion, except 
for terminal bristles of row on sides of face, wide, nearly one-half 
the eye-hight, very widely replaced beneath the eyes by the hairy 
occipital area. Antenme much shorter than the face; first joint 
v'ery short, second about twice as long, or a little longer; third joint 
about twice as long as second, considerably widened and convex be- 
hind ; arista thickened for half its length, minutely pubescent, dis- 
tinctly 3-jointed, the second joint not elongate. Probo.scis fleshy, 
about as long as bight of head, labella well developed ; palpi mod- 
erately large, club-shaped, very considerably thickened at tip. Apical 
pair of scutellar maci’ochpetae sti’ongly decussate, reaching about as 
far as to the base of third abdominal segment; a small discal pair 
in front of them, and two strong lateral jiairs. Abdomen broad 
ovate, flattened, first segment hardly shortened ; macrocluetm onlv 
marginal, on segments one to four. Legs rather long ; claws and 
pulvilli considerably elongate. Wings longer than abdomen, rather 
broad, with small costal spine, third vein spined a short distance at 
base; apical cell ending a little before tip of wing, open ; fourth vein 
bent at an angle, without stump, but with a slight wrinkle at the 
bend; hind cross-vein curved, well approximated to bend of fourth 
vein. TyP^j sarcophagina n. sp. 
The wide cheeks of this genus exhibit, posteriorly, a peculiai’lv 
complete invasion by the occipital area, which almost entirely re- 
places the original genal surface below the eves. 
Aa/c/co5 (a hollow) 7Tp6<;(OTToi> (face). 
