208 ENTOMOLOGICAL NEWS [July, '22 



Geranomyia (Geranomyia) gaudens sp. n. 



General coloration of the thorax gray; halteres yellowish at base, 

 the knohs brown ; wings subhyaline, handsomely spotted and clouded 

 with brown and gray, this including a series of four brown subcostal 

 spots; Sc long, cell 1st i\I2 closed; basal deflection of Cnl before the 

 fork of M. 



$. Length (excluding rostrum) 8.6 mm.; wing 10.5 mm. 9. 

 Length (excluding rostrum) 7.5-8 mm.; wing 8.8-9 mm.; rostrum 

 4.5-4.7 mm. 



Rostrum elongate, the paraglossae beyond the palpi partly lost ; 

 when entire, the rostrum would extend to at least one-third the length 

 of the abdomen, dark brown, the palpi concolorous. Antennae dark 

 brown, the flagellum broken. Front and anterior part of the vertex 

 with a golden-yellow pollen; remainder of vertex dark brown, the 

 broad median area and a narrow border adjoining the eyes more 

 grayish. 



Pronotum gray, the lateral margins obscure yellow. Mesonotal prae- 

 scutum dark gray with three lighter gray stripes, the median one of 

 which is bisected anteriorly by a line of the ground color; scutum 

 light gray, the lobes dark gray; scutellum reddish, gray pruinose : 

 postnotum gray. Pleura brown, gray pruinose ; dorso-pleural membrane 

 obscure huffy-yellow. Halteres white, the knobs dark brown, the base 

 of the stem yellowish. 



Legs with the coxae yellow, the outer face infuscated. this including 

 nearly the basal half of the fore coxae, a large area on the middle 

 coxae and a slight cloud on the posterior coxae ; trochanters yellow ; 

 remainder of legs broken except the basal half of the posterior femora 

 which are testaceous. 



Wings subhyaline, handsomely spotted and clouded with brown and 

 gray; stigma brown; a series of four dark brown areas in the sub- 

 costal cell, the third at the origin of Rs, the last at 5V2; cord and outer 

 end of cell 1st M2 seamed with brown ; conspicuous gray clouds in eel! 

 R beneath the brown subcostal spots, before the ends of the outer 

 radial cells, at the ends of both anal veins and in the anal angle of the 

 wing ; veins pale, brown in the darkened areas. Venation : Sc long, 

 Scl ending about opposite midlength of Rs, Sc2 at tip of Scl ; a super- 

 numerary crossvein in cell 5Y; Rs long, angulated and slightly spurred 

 at origin; r more than its length from the tip of R\: r-m obliterated 

 by contact of the long deflection of R4 + 5 on ,1/1+2; in only about 

 one-third to one-fourth of the outer deflection of Af 3 ; basal deflection 

 of C'A at about one-third its length before the fork of M. 



Abdomen dark brown, the pleural appendages of the hypopygium ob- 

 scure orange. 



Habitat: Argentina. Holotypc, $, San Pedro de Colalao, 

 Tucumun, altitude 2500 meters, January 28, 1921 (V. Weiser). 



