886 CHARLES Paut ALEXANDER 
LVI, 284) with ninth sternite elongated, cylindrical, its tip rounded, feebly split beneath 
ninth tergite very long, pointed, with a deep median split. 
Nepionotype.— Ithaca, New York, May 1, 1913. 
Neanotype.— With type larva. 
Paratypes.— Numerous larvae and pupae with types, May 1-15, 1913. 
Eriocera cinerea Alex. 
1912 Eriocera cinerea Alex. Psyche, vol. 19, p. 169-170, pl. 13, fig. 9. 
Eriocera cinerea is locally common, flying in May. The larvae wer 
found on May 16, 1917, in sand along the banks of Cascadilla Creek 
Ithaca, New York. They have been found at various dates during th 
past few years, but always in scanty numbers. Larvae found on Apri 
28 were associated with larvae of Hexatoma megacera, Eriocera spinosa 
Atherix, and other insects. The larvae are stouter than those of # 
longicornis and are pale whitish yellow, quite devoid of the greenish tint 
of the latter species. A larva found on April 28 transformed to an adul 
female on May 16. Additional larvae and pupae were found on Ma 
24, and a few pupae on May 30, 1917. 
The supposed larva of EH. longicornis described by Alexander and Lloy 
(1914: 21-23) pertains to this species; the true longicornis is discusse 
later in this paper. 
Larva.— Length, 15-16 mm. 
Diameter, 2—2.2 mm. 
Color light yellow. 
Form almost terete, abdominal segments subdivided into two annuli. Subtermin 
abdominal segment greatly enlarged, capable of great distention. Spiracular disk (Plat 
LIV, 265 and 264) very reduced, the usual four lobes exceedingly small; ventral lobes prac 
tically obsolete, not projecting, each fringed with from twenty to thirty long, golden-yello 
hairs; lateral lobes very short, triangular, fringed with from twelve to fifteen long hairs; 
a faint dusky mark from dorsal margin of each spiracle to edge of field; a faint vertical strip 
between spiracles; ventral lobes marked with brownish black, the mark of each side thre 
pointed at its inner end, the innermost of these points connected with its fellow of th 
opposite side; lateral lobes with the marks elongate, triangular, the points directed outward, 
Spiracles small, oval, separated by a distance a little less than the diameter of one. Anal 
gills four, very short and inconspicuous. 
Head capsule long and narrow, measuring about 1.5 by 0.275 mm.; dorsal plates of capsul 
with proximal anterior angles produced inward. Labral sclerite (Plate LII, 253) havin 
labrum itself subquadrate. Mental region entirely lacking strongly chitinized points as i 
this group of genera. Present species showing a structure which is probably a part of labium, 
either mentum or hypopharynx, and which has not been found in any other species of th 
