246 ENTOMOLOGICAL NEWS. [ June, ’14 
Legs normal: fore coxae short, far from attaining base of 
middle pair; preapical bristles on all tibiae. Claws small cury- 
ed; pulvilli present. Wings elongate with costa unbroken 
attaining the fourth vein but with small bristles at end of 
first ; auxiliary vein coalescing apically with first; second basal 
and anal cells distinct, the latter small rounded apically. 
Genotype—Planinasus ambiguus n. sp. 
Planinasus ambiguus n. sp. (Plate X, figs. 5-7). 
Shining black; lunule area, halteres, coxae, basal half or two-thirds 
of all femora, bases of fore and hind tarsi, yellow; lower two-thirds of 
oblique plate metallic-tinged; lower face seen from above densely 
metallic pale green, becoming opake black or brown in other aspects; 
lower angles of front velvety black. Mesonotum and scutellum sparse- 
ly yellow pruinose; pleura paler more opake than mesonotum. Wings 
brownish, immaculate; veins black. All macrochaetae strong and 
black. 
Front twice as broad as long, with two reclinate bristles on lunule 
margin. Face two-thirds as broad as vertex with vertical part one- 
third the height of head; oblique plate half the width of face, longer 
than broad, with two long upcurved converging bristles on lower mar- 
gin; lower face with four erect bristles in transverse series near oral 
margin, a lateral series of two down-curved hairs near lower orbits, 
and a pair of erect bristles in a vertical series above the outermost 
bristles of transverse series. Cheeks very narrow. Antennae as in 
Figure 7. 
Abdomen (partly concealed by the somewhat mutilated wings) ap- 
pears grayish, opake becoming shining apically. Hypopygium com- 
plicated. Fore femora with 1-2 long bristles on lateral flexor margin 
apically. Wings with second costal section twice as long as third; 
veins 2, 3, 4 straight, parallel. Length 3.0 mm. 
Holotype-—é, Cachi, Costa Rica, Valley of Rio Naranjo. 
Collected March 9, 1910, by Dr. P. P. Calvert. In collection 
at Academy of Natural Sciences, Philadelphia, No. 6069. 
Philygria basalis n. sp. (Plate X, fig. 1). 
Opake with apex of abdomen polished. Black, with face, third an- 
tennal joint inferiorly, tarsi and tibiae in part, yellow. Halteres white, 
knob with blackish spot. Head and thorax cinereous with brown mark- 
ings. Abdomen with opake white spots and bands. Wings hyaline with 
basal infuscation as in Figure 1. 
Arista with long hairs above; mesonotum with two dorso-central 
bristles. 
