916 CHARLES PauL ALEXANDER 
They may be swept from rich vegetation in company with such char 
acteristic species as Limnophila brevifurca, L. fuscovaria, L. subtenuicornis 
Adelphomyia minuta, Rhaphidolabina flaveola, Molophilus hirtipenni 
Erioptera venusta, E. stigmatica, Gonomyia florens, G. subcinerea, an 
Tipula oropezoides. 
The elongate larvae of this fly were very common in rich organic mu 
taken from Bool’s hillside, Ithaca, New York (as discussed under th 
account of Bittacomorphella jonesi, page 780), where they were associate 
with a ‘crane-fly fauna characteristic of such situations. The larvae, 1 
life, are pale yellowish, with the food contents, of a chalky white colo 
showing thru the integument. The head capsule and the spiracular dis 
are very small; the inner face of each lobe of the latter is very narrowl 
lined with black. The species was reared many times during late Ma 
and early June, 1917, the length of the pupal existence indoors being seve 
or eight days. 
Larva.— Length, 10.4-11.6 mm. 
Diameter, 0.7-0.75 mm. 
Coloration very pale yellow; contents of alimentary eanal chalky white. 
Form tercte, elongated, body tapering gradually to the postericr end, just beyond gi 
(Plate LXVII, 358) suddenly constricted; last segment elongate-cylindrical, tapering grad 
ally to the very small spiracular disk. Body covered with a short, appressed pub 
cence, on last segment this pubescence coarser and more erect, with a few elongate hai 
interspersed; lateral parts of body at caudal margins of segments with short transver 
lines of small, erect setae; a few other similar rows at about midlength of certain of ti 
Segments. Spiracular disk (Plate LXVII, 357) very small, tending to be eliminated 
reduction; lobes short and blunt, dorso-median lobe the smallest; ventral lobes with t 
short brown lines, not connected distaily, the proximal line a little longer than the late 
line of each lobe; the pale space between these lines a little less than diameter of o 
lateral lobes with two similar divergent lines, the dorsal one attaining inner level 
spiracles; dorsal lobe with two small, indistinct, brown lines; on disk between spiracles t 
small round spots which do not touch spiracles; lobes fringed with short hairs near t 
and capable of close approximation so that disk is often entirely closed. Spiracles lar, 
nearly circular. 
Head capsule small, very long and slender, greatly dissected, the three bars of either si 
long and delicate; dorsal bars at their articulation joined with a short longitudinal bar n 
whose anterior end the antennae are inserted; ventral bars of capsule not conspicuou 
expanded at their anterior end, and apparently not toothed as in other species of this ge 
and in Molophilus. Labrum and epiphs:rynx long and narrow, lying between anten 
bases; epipharyngeal region densely clothed with short setae at tip and with two para 
brushes on ventral face. Mentum apparently not formed as in E. chlorophylla, a sligh 
