I20 NEW YORK STATE MUSEUM 
Contarinia coloradensis Felt 
1912 Felt, E. P. N. Y. Ent. Soc. Jour. 20:240-41 
This species produces a large, budlike deformity on Pinu; 
scopulorum, although Dicrodiplosis gillettei Felt 
probably Zoophagous, was reared from this gall. The work o 
this insect appears to be common in Colorado since it has beer 
repeatedly received from several correspondents. 
THECODIPLOSIS Kieff. 
1895 Kieffer, J. J. Soc. Ent. Fr., Bul. 64, p. 194 
1896, _ When. Ent: Zeit., 15:94, 100 
1897 —————_ "Syn: Cecid. de Eur. & Alg., p: 35 
1910 Rubsaamen, E.H. Zeitsch. Wissenschaft. Insektenbiol., 15:285 
191t Felt, E.P. N.Y. Ent. Soc. Jour., 19:51 
1913 Kieffer, J. J. Gen. Insect., fasc. 152, p. 184 
This genus may be distinguished from Contarinia by costa not 
being interrupted at its union with the third vein, and by the long, 
broadly lobed dorsal and ventral plates, in connection with the 
stout, usually not very long ovipositor of the female. The type 
species is Cecidomyia brachyntera Schw. 
The fifth antennal segment of the male is binodose, the distal 
enlargement with a length a little greater than the diameter, each 
with well-developed circumfili, the loops being rather sparse and 
moderately long. Palpi quadriarticulate, the third and fourth 
segments subequal. Subcosta unites with costa at the basal third, 
the third vein at the apex, the fifth at the distal third, its branch 
just before the basal half. Basal clasp segment stout, the terminal 
clasp segment greatly swollen basally; dorsal plate short, broadly 
emarginate, the lobes broadly rounded; ventral plate triangularly 
emarginate, the lobes divergent, hardly tapering, broadly rounded, 
setose; style short. The above characters were drafted from speci- 
mens determined by Dr J. J. Kieffer and generously donated to the 
Museum. 
Several American species have been referred to this genus. 
Thecodiplosis ananassa Riley produces a gall on cypress 
twigs, while T. liriodendri O.S. inhabitsa circular, somewhat 
convex blister mine on the leaf of the tulip, Liriodendron 
tulipiferae. 
Key to Species 
@ Small species usually yellowish and with very few or no fuscous markings 
b Fifth antennal segment having the basal portion of the stem with a length 
at least three times its diameter 
