246 ENTOMOLOGICAL NEWS. [June, '14 



Legs normal: fore coxae short, far from attaining base of 

 middle pair; preapical bristles on all tibiae. Claws small curv- 

 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. WSngs 

 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. $, 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. ]). 



Opake with apex of abdomen polished. Black, with face, third an- 

 tennal joint interiorly, 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 i. 



Arista with long hairs above; mesonotum with two dorso-central 

 bristles. 



