ASHMEAD : CLASSIFICATION OF THE CHALCID FLIES 467 



the abdomen more depressed, the pedicel as well as the scape being yellow ; other- 

 wise it is hardly distinguishable from the female. 

 Brazil : Chapada ; Santarem. Ten specimens. 



Genus RILEYA Ashmead. 



RiLEYA ORBITALIS, Sp. nOV. 



Female. — Length 2 mm. Head and thorax, except the pronotum which is more 

 or less brownish or yellowish, mostly black, the abdomen brown, the apex black ; 

 orbits, face below antennae, scape, tegulse, and the legs, except the basal half of the 

 hind femora, yellow or brownish-yellow, the tips of the tibise and the tarsi paler or 

 yellowish-white ; flagellum subclavate, light brown, joints five and six of funicle 

 wider than long. Wings hyaline, the veins pale yellowish ; the marginal vein is a 

 little more than twice the length of the stigmal, the postmarginal vein being long. 



The abdomen is conic-ovate, cylindrical, nearly twice the length of the thorax, 

 pointed at apex, the third segment very large, occupying the greater part of the 

 whole surface of abdomen. 



Brazil : Santarem. 



Family LXIV. PERI LAM PIDiE. 



Genus PERILAMPUS Latreille. 



Perilampus brasiliensis, sp. nov. 



(Plate XXXIV., Fig. 4.) 



Female. — Length 4.8-5 mm. Blue, the head behind the ocelh, the fore part 

 of the middle mesothoracicl obe, and the inner front angle of the lateral lobes 

 seneous ; the head is smooth with several longitudinal striae between the eyes and 

 the scrobes, the pronotum coarsely, irregularly punctate, the middle mesothoracic 

 lobe and the scutellum coarsely transversely striate, the lateral mesothoracic lobes 

 with some long, oblique striae posteriorly. The extreme tips of the tibiae and the 

 tarsi are testaceous. 



Brazil : Chapada, in April. Two specimens. 



Family LXV. EUCHARID^. 



Genus EUCHARIS Latreille. 

 EucHARis D [CERODERA Spinola ? = Kapala. 



Eucharis dicerodera Spinolsi, Mem. Acad. Sc. Torino (2), XIII., 1851, p. 43, cT. — 

 Dalla Torre, Cat. Hym., V., 1898, p. 360. 

 Brazil. 



