488 PROCEEDINGS OF THE ACADEMY OF [Oct., 



Female. — Length, excluding the rostrum, about 4.2 mm.; wing, 

 5 mm.; rostrum, about 2.8 mm. 



Rostrum elongate, dark brownish black. Antennae dark brown, 

 moderately elongated. Head dark brown with a narrow median 

 black line; head constricted behind. 



Mesonotal prsescutum brownish yellow, brighter in front, with a 

 very broad median stripe that is pale anteriorly, dark brown behind; 

 in the Aguna paratype the prsescutum is scarcely marked at all, in 

 the allotype the stripe is distinct for its entire length; lateral stripes 

 not clear; scutum brownish yellow medially, the lobes dark brown; 

 scutellum pale dirty yellow; postnotum brown. Pleura brownish 

 yellow. Halteres short, dark brown, the stem more yellowish. 

 Legs with the coxae and trochanters dull yellow; femora yellowish 

 brown with a very indistinct brownish subapical annulus; tibiae 

 dull yellow, darkening into brown at the tip; tarsi dark brown. 

 Wings hyaline, the stigma oval, brown; veins dark brown. Venation: 

 Sc very long, extending to two-thirds the length of the sector; Sc 2 

 at the tip of Sci) Rs moderately long, a little over two times the 

 basal deflection of R i+i . 



Abdominal tergites brown; sternites yellow, the basal segments a 

 little darker. 



Habitat. — Central America. 



Holotype, 9 , Canal Zone, Panama (A. H. Jennings). 



Allotype, cf , Aguna, Guatemala, altitude 2,000 feet (Dr. G. Eisen). 



Paratypes, 9 , with the allotype; 9 , Antigua, Guatemala, Septem- 

 ber, 1902 (Dr. G. Eisen). 



Type in the collection of the United States National Museum. 



Similar to G. canadensis, but smaller, the femora without a black 

 tip, the praescutal pattern more distinct behind, etc. 



This interesting little species is dedicated to Frederick Knab, custo- 

 dian of theDiptera in the United States National Museum, as an appre- 

 ciation of his studies on the feeding habits of this genus of crane-flies. 



Geranomyia distincta Doane. (Plate XXV, fig. 2.) 



Geranomyia distincta Doane; Journal of the New York Entomological 

 Society, vol. 8, p. 186 (1900). 



This fly will probably be found to have a wide range throughout 

 the central and eastern United States, it being now known from 

 Connecticut and New Jersey to Texas. 

 Geranomyia vanduzeei sp. n. 



Related to distincta Doane; rostrum moderate in length; head pale 

 gray; thorax reddish brown without stripes; wings clear without a 



