226 NEW YORK STATE MUSEUM 



dark brown. Wings hyaline, costa light brown. Halteres brownish, 

 fuscous basally, fuscous transparent distally. Legs dark brown, 

 lighter ventrally. Ovipositor about one-fourth the length of the 

 abdomen, the terminal lobes broad at base and broadly rounded. 

 Type Cecid. 77. 



oligotrophus Latr. 



1805 Latreille, P. A. Hist. Nat. Crust, et Ins., 14:288 



1850 Loew, H. Dipt. Beitr., 4:20, 21 (Cecidomyia m part) 



1877 Karsch, F. A. F. Revis. de Gallmucken, p. 16 



1892 Rubsaamen, E. H. Berln. Ent. Zeitschr., 37:328, 376 



1895 Kieffer, J. J. Wien Ent. Zeit., 14:10 



1896 Wien Ent. Zeit., 15:88, 89 



1897 Syn. Cecid. de Eur. & Alg., p. 22 



1900 Soc. Ent. Fr. Ann., 69:437 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 368 



1910 Rubsaamen, E. H. Zeitsch. Wissenschaft. Insektenbiol., 15: 336 



191 1 Felt, E. P. N. Y. Ent. Soc. Jour., 19:46 



1 913 Kieffer, J. J. Gen. Insect., fasc. 152, p. 49 



The type species is Tipula juniperina Linn. According 

 to Kieffer this species has triarticulate palpi, though Rubsaamen 

 holds these organs to be quadriarticulate. This species, according to 

 Schiner, has the third vein ending at the point of the wing, the male 

 antennae shorter than the body, composed of 20 segments, the three 

 basal joints sessile, the following with a stem shorter than the 

 roundish basal enlargement, which latter is provided with three 

 whorls of hairs. The female has shorter antennae, the flagellate 

 segments with only a short stem. An examination of a specimen in 

 the British Museum, identified by Winnertz as Cecidomyia 

 juniperiana Linn., shows that it has the general appearance of 

 Phytophaga rigidae O. S. The palpi are probably 

 quadriarticulate. 



Key to species 



a 13 or 14 antennal segments, abdomen dark brown 



b 13 or 14 sessile antennal segments, the fifth having the basal enlargement 

 with a length one-fourth greater than its diameter, the third palpal 

 segment twice the length of the second; female; reared from Betula 



eeds b et ulae Winn., C. 964 



bb 14 antennal segments 

 c Fifth antennal segment with a stem about one-fourth the Length oi the 



basal enlargement, which latter has a length twice its diameter, the 

 third palpal segment three times the length of the second, female 



\ er n a 1 U Pelt. C, 60 



