23O NEW YORK STATE MUSEUM 



Oligotrophus betheli Felt 

 1912 Felt, E. P. N. Y. Ent. Soc. Jour., 20: 148 



The midges were reared from a fleshy, apical gall on Juniperus 

 utahensis collected by Professor Bethel at McCoy, Col. 



Oligotrophus inquilinus Felt 



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



1909 Ottawa Nat., 22: 247 



This fuscous yellowish male was reared September 11, 1907, from 

 a large, terminal rosette gall on Solidago, probably S. cana- 

 densis. Polygnotus sp. was reared from this midge. 



Male. Length 3 mm. Antennae as long as the body, sparsely 

 haired, yellowish brown; 16 segments, the fifth with a stem one-fourth 

 longer than the basal enlargement, which latter has a length one- 

 half greater than its diameter; terminal segment produced, tapering 

 to a narrowly rounded apex. Palpi; first segment short, expanded 

 distally, second narrowly oval, the third one-half longer, more 

 slender. Mesonotum dark grayish brown, the submedian lines 

 thickly haired. Scutellum dark reddish brown with numerous long 

 setae apically, postscutellum reddish yellow. Abdomen fuscous 

 yellowish, the segments rather thickly clothed dor sally and posteriorly 

 with fuscous hairs; venter lighter. Genitalia yellowish brown, 

 thickly haired. Costa reddish brown. Halteres fuscous yellowish, 

 brown subapically. Legs a somewhat variable fuscous yellowish; 

 claws slender, evenly curved, the pulvilli as long as the claws. Geni- 

 talia; basal clasp segment long, terminal clasp segment short, 

 swollen near the middle; dorsal plate short, deeply and triangularly 

 emarginate; ventral plate short, deeply and triangularly emarginate. 

 Harpes rather long, tapering. Type Cecid. ai655a. 



RHOPALOMYIA Rubs. 



1892 Rubsaamen, E. H. Berln. Ent. Zeitschr., 37: 328, 370 



1895 Kieffer, J. J. Wien Ent. Zeit., 14: 9 



1896 Wien Ent. Zeit., 15:89 



1897 Syn. Cecid. de Eur. & Alg., p. 21 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 362-63 



1909 Ent. Soc. Ont., 39th Rep't, p. 45 



1910 Rubsaamen, E. H. Zeitsch. Wisscnschaft. Insektenbiol., 15: 330 



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

 19 1 3 Kieffer, J. J. Gen. Insect., fasc. 152, p. 43 



