1916.] NATURAL SCIENCES OF PHILADELPHIA. 495 
brownish yellow, the apices broadly light yellow with a dark l)rown 
subterminal ring, this ring about one-half the extent of the pale tip ; 
tibiae yellowish brown; tarsi brown. Wings with a pale grayish 
suffusion, with brown clouds and seams as follows: larger ones at 
the stigma, at the tip of Sc and origin of Rs, midlength of the subcostal 
cell and at the base of this ceh; paler brown clouds at the tips of 
most of the veins, the cross-veins and deflections seamed with this 
same color. Venation: Sc long, extending to about one-third the 
length of the sector; basal deflection of Ri+i very long, the cross-vein 
r-m correspondingly reduced. 
Abdominal tergites dark brown, the segments a little brighter at 
their bases; sternites dull yellow. 
Habitat. — Costa Rica. 
Holotype, 9 , Cartago, Costa Rica, September 17, 1909 (P. P. 
Calvert) . 
Type in the collection of the American Entomological Society. 
This species differs from all the members of the insignis group 
(insignis, lineata, numenius, plumheipleura, ibis, et al.) in the peculiar 
pattern of the prsescutum. 
Geranomyia subinsignis sp. n. (Extra-limit al.) 
Related to insignis Loew; thorax grayish with three broad dark 
brown stripes; femora with a broad subterminal brown annulus; 
wings grayish with extensive brown markings. 
Female. — ^Length, excluding the rostrum, 5.7-6 mm.; wing, 6.4 
mm.; rostrum, about 2.2-2.5 mm. 
Rostrum moderately elongated, black. Antennae black. Head 
black, passing into dark gray on the vertex; a narrow silvery median 
line extends from the front to the occiput. 
Pronotum dull brownish yellow with a dark brown median line. 
Mesonotal praescutum light gray with three dark brown stripes, nearly 
subequal in width and much broader than the pale interspaces; 
middle stripe harrowed behind, barely attaining the suture; lateral 
stripes narrowed in front, broadened behind, crossing the suture 
and suffusing the scutal lobes; median area of the scutum and the 
scutellum pale dirty brown; postnotum brown. Pleura brownish 
plumbeous. Halteres yellow, the knobs brown. Legs with the 
coxae and trochanters pale yellow; femora light brown, passing into 
light yellow at the tip, this pale area including a broad dark browrr 
subterminal annulus; in the Panaman paratype, the brown annulus 
is very broad, encroaching upon the yellow tip; the pale area at the 
tip is about one-half the extent of the brown annulus, which in turn 
