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^ 
at the tip of Sci; Rs moderately long, a little over two times the 
basal deflection of /?4+5. 
Abdominal tergites brown; sternites yellow, the basal segments a 
little darker. 
Habitat. — Central America. 
Holotype, 9 , Canal Zone, Panama (A. H. Jennings). 
Allotype, d^, 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. 
