494 PROCEEDINGS OF THE ACADEMY OF [Oct., 
scutum, scutellum and postnotum reddish gray. Pleura uniform 
gray. Halteres short, yellow, the knobs brown. Legs with the 
coxae brownish yellow; trochanters yellow; femora brown, the basal 
and apical quarters yellowish, a rather broad, brown subterminal 
ring; tibiae and tarsi dark brown. Wings almost hyaline, the costal 
area pale yellow; stigma rounded, pale brown; a darker brown spot 
at the tip of Sc and at the origin of i^s; a very indistinct seam along 
the cord. Venation (Plate XXV, fig. 8) : Sc rather long, ending at 
about one-third the length of the sector. 
Abdominal tergites brown, the sternites more yellowish. 
Habitat. — South-central United States. 
Holotype, 9 , Hot Springs, Arkansas, June 26, 1904 (H. S. Barber). 
Type in the collection of the United States National Museum. 
Differs from G. insignis Loew (Plate XXV, fig. 9) in the more 
grayish ground-color of the praescutum with still narrower stripes, 
the clear gray pleura and the paler wing-pattern; differs from 
plumheipleura Alexander in the very narrow praescutal stripes, these 
stripes not as wide as the interspaces, the pale scutal lobes and the 
pale wing-pattern; from numenius Alexander it differs in the much 
shorter rostrum. 
Geranomyia costaricensis sp. n. (Extra-limital.) 
Related to insignis Loew; mesonotal praescutum with two approxi- 
mated dorsal brown stripes; pleura yellow with a large brown mark 
on the mesopleurites; femora with the apex broadly yellow, with a 
narrow subterminal ring; wings subhy aline with four dark brown 
subcostal marks and paler seams to the veins. 
Female. — Length, excluding the rostrum, 8 mm.; wing, 7.8 mm.; 
rostrum, about 3.3 mm. 
Rostrum moderately elongated, dark brownish black. Antennae 
with the first segment black with a sparse grayish bloom; second 
segment brownish, paler toward the tip; flagellar segments black, 
elongate-oval. Head brownish gray. 
Mesonotal praescutum clear light yellow with two broad reddish 
brown dorsal stripes, one on either side of the very narrow middle 
line, these stripes barely attaining the suture; lateral margin of the 
sclerite brown, widely separated from the median stripes; scutum 
with the median area broadly yellowish white, the lobes brown; 
scutellum pale; postnotum yellowish brown. Pleura dull yellow, 
a large browoi blotch on the mesopleurites and a similar one on the 
lateral portions of the postnotum. Halteres yellow, the knobs 
brown. Legs with the coxae and trochanters light yellow; femora 
