ASHMEAD : CLASSIFICATION OF THE CHALCID FLIES ' 429 



the apical half or more of front and middle femora and their tibise and tarsi, a large 

 spot on upper outer angle of hind femora and the hind tarsi, yellow. Abdomen 

 ovate, the basal half yellowish, the apical half black ; the petiole is short, hardly 

 twice as long as thick. 



Hale. — Length 6 mm. Agrees well with the female, except the middle meso- 

 thoracic lobe is margined with yellow, the scutellum has two large yellow spots at 

 the sides, the front and middle legs, except the coxse, are yellow, while the abdom- 

 inal petiole above is j'ellow and five or six times as long as thick. 



Brazil : Santarem ; Chapada, in August. One male and three female specimens. 



Spilochalcis rufodorsalis, sp. nov. 



Female. — Length S mm. Mostly red and almost smooth, the mesopleura, the 

 reticulated metathorax and the hind coxse, except at base beneath and at apex, 

 being black ; flagellum brown-black ; front and middle legs, tips of hind coxie, the 

 hind tarsi, and the petiole of the abdomen yellow. The abdomen is ovate, the 

 petiole hardly five times as long as thick. 



Brazil : Santarem. One specimen. 



Spilochalcis laticeps, sp. uov. 



Female. — Length 8.5 mm. Mostly red and feebly punctate, the sutures of thorax 

 dusky, the pronotum yellowish ; the scape, the front and middle legs, except the 

 thickened part of the front and middle femora and the middle tibise basally, and 

 the hind tarsi, are yellow ; hind legs reddish, the hind coxae with a dusky spot 

 above toward base. The abdomen is ovate, the petiole yelloAV and about thrice as 

 long as thick. The head is abnormal, seen from in front, about twice as wide as 

 long, the face being concave ; the eyes are large, rounded and occup}^ nearly the 

 whole sides of the head, the temples being flat, undeveloped. 



Brazil : Santarem. One specimen. 



Spilochalcis nigropetiolata,,sp. nov. 



Female. — Length 4 mm. Mostly red and faintly rugulosely punctate, the middle 

 mesothoracic lobe posteriorly and the petiole of the abdomen being black ; the 

 flagellum, except the first three joints beneath, is bro^vn-black ; the front and middle 

 legs are yellowish ; the hind legs are pale ferruginous ; while the bod}^ of the abdo- 

 men is pale ferruginous with a black spot on the disk above. 



Brazil : Santarem. One specimen. 



Spilochalcis rufoscutellaris, sp. nov. 

 Female. — Length 8 mm. Black, faintly punctate, the middle mesothoracic lobe 

 posteriorly, the lateral lobes and the scutellum red ; scape, tegulse, the front and 



