178 ENTOMOLOGICAL NEWS [xxxii, '21 



Pleura bufiy gray with a conspicuous, longitudinal dark brown line 

 extending from the cervical sclerites to the postnotum, interrupted on 

 the lateral sclerites of the latter ; a small brown spot immediately before 

 the root of the halteres ; dorso-pleural membranes yellow; mesosternum 

 blue-gray. Halteres yellow, the knobs and outer ends of the stems 

 brown. Legs with the coxae grayish buff, sparsely dotted with pale 

 brown ; trochanters fight brown ; femora obscure yellow, the tips broad- 

 ly dark brown ; tibiae concolorous, the extreme bases and tips brown ; 

 tarsi yellow, the terminal segments dark brown. Wings subhyaline, 

 the costal region more yellowish ; entire surface of wing heavily suf- 

 fused and spotted with brown ; a series of dark brown areas in the 

 costal and subcostal cells, these areas more extensive than the inter- 

 spaces ; cells R, Rl and the bases of cells R2, R3 and R5 are washed 

 almost uniformly with pale brown, sparsely variegated with hyaline 

 dots; remainder of the wing surface extensively covered with circular 

 pale brown spots that are largely confluent and more extensive than the 

 restricted pale interspaces. Venation: Sc2 not indicated; Rl beyond 

 r only about one-half longer than the latter ; 7?2+3 short, about equal 

 to r ; R2 before r about equal to the deflection of R4+5; cell 1st 

 M2 rectangular, about equal to the petiole of cell Ml ; basal deflection 

 of Cul at about one-quarter the length of cell 1st M2. 



Abdomen with the basal tergites light gray, dark brown medially ; re- 

 maining tergites obscure yellow, the caudal margin broadly brown, the 

 lateral margins less broadly so ; sternites obscure yellow, the segments 

 with a broad median caudal marking ; both sternites and tergites with 

 abundant brown setigerous punctures, more numerous and conspicuous 

 laterally. 



Habitat : Argentina. Holotype, $ , Province of Buenos 

 Aires, October 10, 1920 (C. Bnich), in the collection of the 

 Museum of La Plata. 



OROLIMNOPHILA new name 



Orolimnophila, new name for Oromyia Alexander, Journ. 

 N. Y. Ent. Soc., vol. 21, p. 203, 1913; preoccupied by Oreo- 

 mysa Pokorny, 1887, Orosmya Rondani, 1856. 



Orolimnophila argentinicola new species. 



General coloration brownish testaceous; antennae of male elongate, 

 the flagellar segments densely covered with spinous setae ; wings with 

 no distinct stigma ; Sc 1 ending about opposite one-third the length of 

 Rs ; outer pleural appendage of male hypopygium elongate, chitinized, 

 the outer margin with short, appressed spines, which continue to the 

 apex. 



$ . Length about 5.5 mm. ; wing 6.7 mm. Rostrum and palpi testace- 

 ous. Antennae elongate in the male ; scape obscure yellow ; flagellum 

 brown ; flagellar segments elongate cylindrical, densely set with con- 

 spicuous spinous setae, none of which are developed into verticils. Head 

 testaceous yellow. 



Mesonotum brownish testaceous without distinct darker stripes ; post- 

 notum sparsely white pollinose. Pleura pale brown, sparsely pruinose. 

 Halteres testaceous, knobs brownish. Legs dark brown ; tibial spurs 

 short. Wings with a pale gray tinge; stigma lacking; veins pale brown. 

 Venation: Sc moderately long, Scl extending to about opposite one- 

 third Fts; Rs arcuated at origin; 7?2+3 very lonu, exceeding R3 ; R2 

 oblique; cell 1st M2 small, subrectangular ; outer deflection of Jl/3 with- 



