88 NEW YORK STATE MUSEUM 
ment with the basal enlargement slightly produced, pyriform, the 
distal enlargement produced, broadly fusiform. Palpi; the first seg- 
ment short, stout, irregularly quadrate, the second a little longer, 
roundly rectangular, the third one-half longer, more cylindric, the 
fourth one-half longer and more slender than the third, strongly 
tapering distally. Mesonotum sooty yellowish. Scutellum a little 
lighter, postscutellum darker. Abdomen yellowish, darker at the 
extremities. Wings hyaline, costa yellowish brown. Halteres yel- 
lowish transparent. Legs yellowish brown; claws long, slender, 
evenly curved; pulvilli nearly as long as the claws. Genitalia; 
basal and terminal clasp segments short, stout; dorsal plate short, 
stout, deeply, roundly and narrowly emarginate, the lobes broad; 
ventral plate long, tapering, triangularly emarginate, the lobes 
narrowly rounded. 
Female. Length 1.25 mm. Antennae pale straw, about one-half 
the length of the body; 14 segments, the fifth with the stem about 
one-fourth the length of the subcylindric basal enlargement, which 
latter has a length one-half greater than its diameter; terminal seg- 
ment reduced, broadly oval. Palpi; first segment subquadrate, the | 
second a little longer, broader, the third one-half longer than the 
second, more slender, the fourth one-third longer than the third. 
Wings with a length nearly twice the width, plainly narrower than 
in the male. Ovipositor scarcely half the length of the abdomen, 
the basal segment thick, with a length one-half greater than its 
diameter, the distal segment short, with a length about four times 
its diameter and apically with indistinct, narrowly rounded, setose 
lobes. Color characters nearly as in the male. 
This species is based upon the male, the association of the female 
being provisional only. Type Cecid. 52. 
Lobopteromyia foetedi Felt 
1908 Felt, E.P. N.Y. State Mus. Bul. 124, p. 390 € 
The yellowish male with a dark-brown mesonotum was taken 
May 16, 1906 onskunk cabbage, Symplocarpus foetidus, 
at Karner, N. Y. 
Male. Length .75 mm. Antennae light brown and a little longer 
than the body, thickly clothed with fine hairs, 14 segments, the fifth 
with stems one-half and two times their diameters respectively. 
Palpi; the first segment short, stout, subquadrate, the second a 
little longer, roundly rectangular, the third one-half longer than the 
second, tapering at both extremities, rather slender, the fourth one- 
fourth longer than the third and a little stouter. Mesonotum dark 
brown, scutellum reddish brown, abdomen vellowish transparent, 
wings hyaline, costa brownish; halteres and legs yellowish trans- 
parent, the tarsi with a few irregular dark markings, claws long, 
evenly curved, the pulvilli nearly as long as the claws. Genitalia: 
basal clasp segment short, broad; terminal clasp segment. short, 
stout; dorsal plate short, broad, deeply and triangularly incised, 
