ASHMEAD ; CLASSIFICATION OF THE CHALCID FLIES 439 



Spilochalcis biannulata, sp. nov. 



Female. — Length 5.5 mm. Yellow, with the black markings much as in S. 

 timida, but differing as follows : The black lines on the middle mesothoracic lobe 

 form an anchor-shaped mark ^, the scutellum has an acute wedge-shaped black 

 spot at apex, the hind femora have a large, irregular, black spot at basal third and 

 a small black spot at apex below, while the hind tibise have two black rings, one at 

 base, the other near the middle. The abdominal petiole is rather slender and four 

 or more times longer than thick, the body of abdomen being ovate, black at apex 

 and with some fuscous stains on the dorsal segments. 



Brazil : Santarem. One specimen. 



Spilochalcis medius, sp. nov. 



i'^emafe.— Length 4 mm. Yellow, with black markings much as S. timida, but 

 differing as follows : The black central line on the middle mesothoracic lobe is only 

 slightly dilated, the spots on the lateral lobes are smaller, nearly round and do not 

 touch the parapsidal furrow as in 8. timida, the hind femora have only a small black 

 spot at apex and are armed with seventeen or eighteen minute black teeth, while 

 the body of the abdomen is conic-ovate, black at tip, the petiole not slender, about 

 thrice as long as thick. 



Brazil : Corumba, in March. One specimen. 



Spilochalcis cameroni, sp. nov. 



Female. — Length 4.5 mm. Yellow, with the black markings much as in S. 

 medius, only the middle mesothoracic lobe has besides the median black line two 

 other lines anteriorly, between the parapsidal furrows and the median line, that 

 extend to the middle of the lobe ; the hind femora have a black spot at base and a 

 black spot at apex and are armed with about sixteen small black teeth ; while the 

 abdomen is conically pointed, blackish at apex, the dorsal segments stained with 

 fuscous near the sutures, the petiole being about twice as long as thick. 



Brazil : Rio de Janeiro. One specimen. 



Spilochalcis enocki, sp. nov. 

 Female. — Length 5.75 mm. Yellow, with black markings as follows : The 

 sutures of the mesonotum, a central line on the middle mesothoracic lobe, an oblong 

 spot on the lateral lobes, a central line on the scutellum, a stripe on front margin of 

 the mesosternum and a spot or line in the mesopleural furrow, are black ; legs im- 

 maculate, the hind femora armed with about seventeen minute teeth, the teeth 

 tipped with black ; abdomen fusiformly pointed, the sheaths of the ovipositor black, 



