432 MEMOIRS OF THE CARXEGIE MUSEUM 



at the sides and along the venter. Wings li^'aline, with a fuscous spot or cloud from 

 the apex of the stignial vein ; veins brownish. 

 Brazil : CJhapada, in April. One specimen. 



Spilochalcis imitator, sp. nov. 



Female. — Length 5 mm. Stature and form of »S'. prrphxa, but differing in color 

 of thorax, hind legs and abdomen. The parapsidal sutures are black, the middle 

 mesothoracic lobe has a black line down the center, the lateral lobes are reddish, 

 broadly margined with yellow, the scutellum is yellow, with a large central black 

 spot, the hind coxse have only a faint trace of the black spot above, while the body 

 of the abdomen except the sheaths of the ovipositor, is entirely pale ferruginous, 

 without the yellow marks ; otherwise it is scarcely distinguishable from S. jjerplexa. 



Brazil : ('hapada, in August. One specimen. 



Spilochalcis simillima, sp. nov. 



Female. — Length 5 mm. Stature and form as in the two previous species but 

 differing in color. Yellow, the occiput, the parapsidal furrows, the pronotal suture, 

 a short median line on the middle mesothoracic lobe posteriorly, and the sheaths 

 of the ovipositor, black ; the scutellum has a dark line down the center ; the hind 

 coxse, except at the extreme apex, are wholly yellow. 



Brazil : Chapada, in April. One specimen. 



Spilochalcis chapad.e, sp. nov. 



Male. — Length 3.8 mm. Yellow; legs and flagellura Ijruwn ; middle meso- 

 thoracic lobe anteriorly and the tip of the metathorax black or dusky, the hind 

 coxfe above reddish or ferruginous ; abdomen ferruginous, the body oblong oval, 

 with some fuscous or blackish stains or marks at sides toward apex, the petiole 

 longer than the metathorax. Wings hyaline, with a fuscous cloud from the apex of 

 the stigmal vein. 



Brazil : Chapada, in April. One specimen. 



This may be the male of .S'. unitator. 



Spilochalcis albqmaculata, sp. nov. 

 B'einale. — I^ength 7 mm. Head black, with the hind and front orbits, the 

 clypeus, the face, the mandibles, except teeth, and the scape, yellowish-white ; 

 thorax black, with the dorsum of pronotum, margins of the middle mesothoracic 

 lobe, the outer margins of the lateral lobes, two large spots on scutellum, nearly 

 confluent at apex, and the depression on each side of the metathorax, yellowish- 

 white ; petiole of abdomen and front and middle legs, yellowish-white ; body of 



