NORTH AMERICAN DIPTERA. 
371 
hyaline, deeply tawny on basal and costal portions, without costal spine, third 
vein not spined at base; apical cell closed in border, slightly before tip of wing; 
fourth vein rounded at bend, without stump or wrinkle ; hind cross-vein not 
straight, a little nearer the bend of the fourth vein ; tegulse deep tawny ; halteres 
fuscous, tawny at base. Length 5.5 — 6 mm. ; of wing 4.5 — 5 mm. 
Described from two S specimens received from i\lr. Clias. Rob- 
ertson. Carlinville, 111., and So. Florida. 
E n. gen. 
Metallic dark green or blacki.sh species, difiering from Clida and 
Phasioc/ista chiefly in the hairy eyes. Head slightly wider than 
thorax and abdomen. Eyes more or le.ss thickly pubescent, closely 
apjtroximated in front of ocelli in S ; front much widened before, 
somewhat prominent, frontal bristles weak, mostly on forward por- 
tions : no orbital bristles ; sides of face as wide as facial depression, 
with rows of hairs ; face hardly receding; vibris.ste situated well 
above oral margin at a contraction of the facial ridges, the latter 
bare. Sides of face and cheeks divided by a more or less distinct 
suture extending obliquely from lower border of eyes to base of an- 
tennse. Cheeks nearly as wide as half the eye-hight, more or less 
hairy. Antennae half the length of the face, third joint a little 
longer than second ; arista very short pubescent, 3-jointed, second 
joint not elongate, third joint thickened at base. Proboscis short, 
fleshy, labella and palpi well developed, the latter nearly cylindrical, 
somewhat thickened toward tip, bristly. Thorax and scutellum with 
macrocluetae. Abdomen as wide as thorax, not elongate, rounded, 
first segment hardly shortened, macrocluetce only marginal. Legs 
bristly ; claws and pulvilli of Z elongate. Wings longer than 
abdomen, narrowed toward tip, without or with a very small costal 
sj)ine ; apical cell open or closed in border immediately before tip 
of wing; curvature of fourth vein rounded, without stuni]) or wrinkle; 
hind cross-vein sinuate, nearer to bend of fourth vein, or in the mid- 
dle between the bend and the small cro,ss-vein ; 9 unknown. Type, 
E. clistoides n. sp. 
Eiiiiyoininii elistoides n. sp. 'J, . — Differ.s from Phasioclista metallica as 
follows: Eyes thickly pubescent; second antennal joint bright rufons, thiid 
joint but little longer, dark brown ; arista distinctly 3-jointed, not so bulbous 
at base; cheeks very wide: sides of face hairy, obliquely cut out below; palpi 
blackish. A short pair of median marginal macrocbsetie on second abdominal 
segment, a bristly hair at sides; third segment with about ten marginal macro- 
chsetse, last segment with about eight above. Tibise quite bristly. Apical cell 
* (to clothe) -j- 6/n/aa (eye). 
