REPORT OF THE STATE ENTOMOLOGIST IQ17 147 
This reddish brown male was taken June 11, 1906 on Mayapple, 
modophylium peltatum, at Albany, N. Y. 
Male. Length 2 mm. Antennae as long as the body, thickly 
haired, dark brown, yellowish basally; 14 segments, the fifth 
trinodose, with the two longer stems two and one-half and two times 
their diameters; terminal segment, basal portion of the stem greatly 
produced, distinctly swollen near its middle, the distal two enlarge-- 
ments separated by a short stem, the distal one obpyriform and with 
a thickly haired, slender, spindle-shaped appendage, the latter 
swollen basally. Palpi; the. first segment quadrate, the second 
twice the length of the first, the third a little longer than the second, 
more slender, the fourth a little shorter, more slender. Face yel- 
lowish. Mesonotum dark brown, the submedian lines yellowish, 

Fig. 51 Youngomyia podophyllae, palpus of male 
(enlarged, original) 
sparsely setose. Postscutellum yellowish. Abdomen reddish brown, 
the basal segments darker, each segment margined posteriorly with 
fuscous setae. Wings hyaline, costa light brown. Halteres yellowish 
transparent basally, yellowish fuscous apically. Legs pale brown, 
lighter. ventrally; tarsi slightly darker; claws stout, slightly curved, 
unidentate. Genitalia: basal clasp segment stout, internally with 
a heavy, subquadrate basal process; terminal clasp segment slightly 
swollen at the base; dorsal plate broad, deeply and triangularly 
emarginate, the lobes long, slender, narrowly rounded; ventral plate 
stout, tapering, subtruncate. Type Cecid. 207. (See plate 7, fig. 2) 
Youngomyia rubida Felt 
1908 Felt, E. P. N. Y. State Mus. Bul. 124, p. 399 
The dark red male was taken June 29, 1906 on sedge, Carex, 
an Nassau, N. Y. 
Male. Length 2 mm. Antennae twice the length of the body, 
thickly haired, light brown, yellowish basally; 14 segments, the fifth 
trinodose, with the two longer stems each with a length twice their 
diameters: terminal segment, basal portion of the stem much produced, 
the middle enlargement slightly prolonged and well separated from 
the distal enlargement, which latter is obpyritorm and apically 
bears a long, fusiform appendage. Palpi; the penultimate segment 
long, stout, tapering at both extremities, the terminal one a little 
longer, more slender. Face pale yellowish. Mesonotum dark brown, 
