186 NEW YORK STATE MUSEUM 
men nearly uniform dark brown, the terminal segments light yellow; 
rather sparsely clothed with yellowish hairs. Wings subhyaline, 
costa dark brown; halteres yellowish transparent basally, slightly 
fuscous apically. Legs nearly uniform fuscous yellowish, tarsi 
lighter, terminal segments variably and slightly tinged with carmine; 
claws long, slender, strongly curved near the middle. Genitalia 
(pl. 20, fig. 5); dorsal plate broad, deeply and narrowly incised, the 
lobes tapering; ventral plate broad, long, deeply and roundly emargi- 
nate, the lobes broad, diverging, obliquely truncate; style long, stout, 
swollen at the basal third, constricted at the distal fourth, more so 
at the distal eighth, slightly expanded and narrowly rounded. Type 
Cecid. 409. 
Itonida agraria Felt 
1908 Felt, E.P. N. Y. State Mus. Bul. 124, p. 413 (Cecidomyia) 
This pale yellowish male was captured at Newport and Nassau, 
N. Y., in June and July, 1906. 
Male. Length .75 mm. Antennae fully twice as long as the body, 
thickly haired, pale straw; fourteen segments, the fifth with stems 
each three and one-half times their diameter; terminal segment, distal 
enlargement prolonged, subcylindric, apically a nearly equally long, 
spindle-shaped process. Palpi; the first segment irregularly sub- 
quadrate, the second, third and fourth each nearly subequal, with a 
length about four times the diameter; face yellowish. Mesonotum a 
variable orange, slightly darker anteriorly. Scutellum and post- 
scutellum a variable orange. Abdomen a pale yellowish orange. 
Wings hyaline, costa very pale straw; halteres whitish transparent. 
Legs almost whitish transparent, tarsal segments annulate with light 
brown; claws slender, uniformly curved. Genitalia; dorsal plate 
broad, deeply and narrowly incised, the lobes broadly rounded exter- 
nally, irregularly and obliquely truncate, the internal and external 
angles slightly prolonged, each with a stout apical seta; ventral plate 
broad, long, deeply, broadly and roundly emarginate, the lobes well 
separated, narrow, narrowly rounded; style long, slender broadly 
rounded. Type Cecid. 247. 
Itonida terrestris Felt 
1908 Felt, E.P. N.Y. State Mus. Bul. 124, p. 413 (Cecidomyia) 
This dark yellowish male was taken June 21, 1906 ina trap lantern 
at Poughkeepsie, N. Y. 
Male. Length .75 mm. Antennae one-fourth longer than the 
body, thickly haired, light brown; fourteen segments, the fifth with 
stems three and three and one-half times their diameters. Palpi; 
the first segment irregular, subcylindric, with a length one-half 
greater than its diameter, the second with a length about four 
times its diameter, the third a little shorter and more slender and the 
fourth a little longer and more dilated than the third. Mesonotum 
