438 MEMOIRS OF THE CARNEGIE MUSEUM 



the lateral lobes, a central line on the scutellum, a median line on the metathorax, a 

 spot on the mesosternum anteriorly, the femoral furrow on the mesopleura, a stripe 

 on the hind coxre above, and six bands on dorsum of abdomen, black. The abdo- 

 men is fusiformly pointed, a little longer than the head and thorax united, the petiole 

 short, not longer than thick. The hind femora are armed with from twenty to 

 twenty-two minute teeth. 



West Indies : Trinidad. One specimen. 



Spilochalcis incongrua, sp. uov. 



Male. — Length 6 mm. Yellow, with black markings very nearly as in S. 

 trinidadensis but with the following differences: The metathorax is ivithotit the 

 median black line, the antennae are wholly yellow, except the flagellum above, the 

 hind coxse have a small black spot above, while their extreme apices, including the 

 first joint of the trochanters, are black ; the hind femora have two black spots on 

 outer face, one near the middle, the other at the apex and are armed with sixteen 

 to seventeen small, Ijlack teeth ; the hind tibite are entirely yellow. 



Brazil : Chapada, in April. One specimen. 



Spilochalcis mayei, sp. nov. 



Female. — Length 5.5 mm. Yellow ; occiput with a transverse black spot ; flagel- 

 lum brown-black ; a small median spot on front face of pronotum, the parapsidal 

 furrows, a transverse line on the anterior margin of the middle mesothoracic lobe 

 and a longitudinal line down the center, a small spot on each lateral lobe, a median 

 line on the scutellum, a line in the mesopleural furrow and a spot on the hind coxte 

 above black. 



The abdomen is long, lanceolate, about twice as long as the head and thorax 

 united, the petiole very short transverse, the dorsal segments more or less banded 

 with fuscous, the terminal segment styliform. The hind femora are armed with one 

 large tooth, followed by fourteen or fifteen minute teeth. 



Brazil : Chapada, in May. One specimen. 



Spilochalcis timida, sp. nov. 



Female. — Length 4 mm. Yellow, with the black markings much as in S. in- 

 congrua but with the following differences : The flagellum is wholly black, the hind 

 coxtB have the apices alone black, the hind femora have two black spots and 

 are armed with about seventeen small black teeth, while the hind tibife are black 

 at base. 



Brazil : Corumba, in April. 



