REPORT OF THE STATE ENTOMOLOGIST 1917 127 
1906 Felt, E. P. Ins. Affec. Pk. & Wdld. Trees, N. Y. State Mus. Mem. 8, 
2:732 (Cecidomyia) 
1908 ——————_ N Y. State Mus. Bul. 124, p. 393 (Contarinia) 
1910 Stebbins, F. A. Springf. Mus. Nat. Hist., Bul. 2, p. 33 (Contarinia) 
This species is not rare on the tulip in the vicinity of Albany, 
and is very common farther south, particularly in North Carolina 
where it is sometimes so abundant as to mar seriously the foliage 
soward the end of the season. Our observations at Albany show 
that there are two and possibly more generations annually, while 
J. G. Jack, who studied this insect in the vicinity of Boston, states 
-hat there are three or more generations, the broods so overlapping 
that some larvae may almost always be found. He states that the 
frst eggs are probably laid in the spring on the unfolding leaves, 
while the last larvae attain full growth about the end of September. 
They escape from the blister mine through a slit and enter the 
zround, the late appearing larvae probably remaining unchanged 
antil spring. 
Gall. A nearly circular, somewhat convex blister mine about 5 
imm in diameter. ‘There is a dark brown center surrounded by a 
ight brown, irregular area which is slightly darker on its outer 
margin. The appearance is approximately the same on both sur- 
faces, the coloration being a little deeper on the upper. The partly 
developed gall has a dark brown, slightly elevated, circular central 
part surrounded by pale green, which in turn is encircled by pale 
yellow, shading into pale green, and that into the color of the normal 
leaf tissue. 
Male. Length 1.5 mm. Antennae one-half longer than the 
body, thickly haired, light brown; 14 segments, the fifth with stems 
three-fourths and two times their diameters, respectively ; terminal 
segment, distal enlargement greatly reduced, with a length about 
one-half greater than its diameter, apically a short, stout process. 
Palpi; probably quadriarticulate. Mesonotum reddish brown, sub- 
median lines pale yellowish. Scutellum yellowish brown, postscutel- 
lum and abdomen reddish brown, the latter sparsely haired. Wings 
hyaline, costa light brown. Legs a variable brown, claws long, 
slender, strongly curved, the pulvilli apparently absent. Genitalia 
indis inet in the preparation. 
Female. Length 1.3 mm. Antennae a little shorter than the 
body, sparsely haired, light brown; 14 cylindric subsessile . seg- 
ments, the fifth with a stem about one-fourth the length of the basal 
enlargement, which latter has a length two and one-half times 1ts 
diameter and is slightly constricted near the basal third; terminal 
segment, basal enlargement slender, with a length five times 1ts 
diameter and apically with a short, stout, subglobose appendage. 
Palpi; the first segment short, stout, irregularly subquadrate, the 
second a little longer, broadly oval, the third probably longer than 
the second, rather stout, the fourth apparently twice the length 

