2l6 ENTOMOLOGICAL NEWS [XXXI, *2O 



from one another by a distance a little greater than the diameter of one; 

 scutum gray, each lobe with a brown mark continued backward from the 

 lateral praescutal stripes; scutellum gray, broadly margined with pale; 

 postnotum light gray. Pleura grayish, a conspicuous yellowish longi- 

 tudinal stripe across the dorsal portion of the mesosternum and the ven- 

 tral portions of the mesepimeron, beginning as a narrow point behind the 

 fore coxa, broadest above and immediately behind the middle coxa. 

 Halteres long and slender, pale, the knobs dark brown. 



Legs with the coxae dark grayish brown; trochanters brown; remainder 

 of the legs brown, the tips of the femora, tibiae and tarsi darker. 



Wings comparatively long and narrow, subhyaline, the stigma con- 

 spicuous, oval, brown; veins dark brown. Venation: Sc long, Sci ending 

 just before midlength of the long Rs; Sc2 removed a short distance from 

 the tip of Sci, Sci alone being about equal to the basal deflection of Cui; 

 Rs very long, almost straight, longer than the combined R2-\-j and Rj 

 beyond it; r on R2-\-j nearer the fork of Rs than to the fork of R2-\-j; 

 R2 approximately equal to 7?2+j; cell isl M.2 open by the atrophy of 

 the outer deflection of Mj; basal deflection of CUT a short distance be- 

 fore the fork of M. 



Abdomen dark brown, sparsely pruinose, the caudal margins of the 

 segments narrowly pale. Male hypopygium with the pleurites stout, 

 the appendages inserted near midlength of the inner face; three pleural 

 appendages, the largest heavily chitinized, bifid, the outer arm again 

 slightly split at the tip so that the entire appendage appears indistinctly 

 trifid; inner pleural appendage a flattened blade that is slightly dilated 

 distally and provided with rather numerous sense setae; outer pleural 

 appendage about as long as the second appendage, heavily chitinized, 

 sinuous, narrowed to the blunt apex. Penis-guard long and narrow, the 

 apex indistinctly trifid. Ovipositor with the valves slender, acute, strongly 

 upcurved. 



Habitat: Argentina. 



Holotype: d 71 ; Cueva Iturbe, Province of Jujuy, altitude 

 3700 meters, November 10, 1919 (Vladimir Weiser). Allo- 

 type: 9 , Hornadita, Province of Jujuy, altitude 3400 meters, 

 November 30, 1919 (Weiser). Paratypes: I 9 , with the 

 allotype; 7 c? 4 9 , Tilcara, March 20, 1920. 



This interesting fly is dedicated to its collector, Sefior 

 Vladimir Weiser, to whom we are indebted for considerable 

 assistance in determining the range of distribution of Tipu- 

 lidae in Argentina. 



Gonomyia (Gonomyella) argentineiisis new species. 

 General coloration light brownish gray; antennae dark brown, nirso- 

 notal praescutum with three brown stripes; pleura dark brown with ;i 



