428 MEMOIRS OF THE CARNEGIE MUSEUM 



notum iinmaiulate S. corumbx. 



70. Scutellum with a transverse black line at base, usually in the basal suture 77 



Scutelluin with two black spots at base, connected with a black line in the basal suture ; a small black 

 spot at apex. 



Lateral mesothoracic lobes with a black spot at apex ; abdomen i'usif'ormly pointed, the tip alone 

 black, the petiole only a little longer than thick ; ^ ;S'. deacripta Walker. 



77. Hind femora with a small black spot at apex ; scutellum with a small triangular black spot at apex ; 



abdomen conic-ovate, the petiole about twice as long as thick ; cf S. paraguayensia. 



78. Thorax yellow, a puncture on each side of pronotum, a spot on the lateral mesothoracic lobes, two 



.short lines on the middle lobe anteriorly and a spot posteriorly near the scutellum, a spot ou the 

 axilliE and a spot at apex of scutellum, black ; legs immaculate ; apical half of abdomen black, the 

 petiole nearly five times as long as thick ; (f .S'. dimidiata. 



79. Thorax yellow but with the middle mesothoracic lobe wilh one or more black spots 80 



Thorax yellow but with the middle mesothoracic lobe immaculate, the lateral lobes with a black spot. 



81 



80. Middle mesothoracic lobe with two black spots anteriorly ; apex of metathorax black ; legs yellow, the 



extreme apex of hind coxee black, the hind femora with a small black spot at apex.-.iS. meridionalis. 



Middle mesothoracic lobe with a small central black spot, the lateral lobes with a minute black spot ; 



scutellum with a delicate median black line ; abdomen fusiform ; segments tw^o to six with fuscous 



bands ; c? S. tripimclala. 



81. Scutellum immaculate ; abdomen subglobose ; hind femora with two black spots S. bipunctata. 



82. Abdomen in ? fusiformly pointed, the sheaths of the ovipositor black, the petiole not quite twice as 



long as thick (in .^ three or more times longer than thick) >S'. jiava Fabricius. 



Spilochalcis taks.\lis, sp. nov. 



Female. — Length 5.5 mm. Black, coarsely punctate ; front orbits, face below the 

 insertion of the antennte, hind orbits, scape beneath, the hind margin of the prono- 

 tum, except mediall}^, a line on each side of the scutellum, the base and apex of 

 front tibise, all tarsi, and the jjetiole of the abdomen, yellow. Abdomen subgloljose, 

 polished black, except a reddish spot at base beneath. 



Brazil : Chapada, in May. One specimen. 



Spilochalcis atrata, sp. nov. 



Female. — Length about 7 mm. (Head lost.) Black, coarsely punctate; hind 

 margin of protonum, a spot on the hind angles of the parapsides, a line across the 

 base of the scutellum and the ridge at apex, and the front knees and tarsi, yellow, 

 the tarsal joints more or less dusky medially. 



Brazil : Santarem. One specimen in bad condition. 



Spilochalci.s santaremenscs, sp. nov. 



Female. — Length 5.5 to G mm. Black, coarsely punctate ; front and hind orbits, 

 scape, pronotum above, tegula% -apical half of scutellum, except the ridge at apex, 



