4 Cameron, Hyinenoptera from Chili. 



first transverse cubital nervure ; the second about the 

 same distance from the second transverse cubital ; the 

 costal cellule is distinct ; the first transverse cubital 

 nervure is sharply, the second slightly, oblique ; both are 

 bullated below ; the transverse median nervure is received 

 on the outer side of the basal ; there are two discoidal 

 cellules, the upper being the longer and triangularly 

 narrowed at the apex ; the sub-discoidal nervure issues 

 from shortly below the middle of the discoidal. In the 

 hind wings the cubital nervure is obliterated beyond the 

 transverse cubital ; the discoidal is complete. The abdomen 

 has seven segments; the first is triangular; the second is 

 only slightly longer than the others ; the basal two ventral 

 segments are normal ; the third in the middle projects 

 into a large plate, which is broader than long, not much 

 narrowed towards the apex ; the fourth segment is 

 depressed ; the fifth is raised so that the plate on the third 

 segment is on a level with its top ; the apical two seg- 

 ments are turned down ; the last or seventh has the apex 

 roundly incised. 



The front is furrowed down the middle ; on either 

 side, behind the ocelli, is a depression next to the raised 

 occiput ; the antennae have a distinct pedicle ; there is a 

 narrow, but distinct, longitudinal furrow on the meso- 

 pleurae ; there is a similar narrow longitudinal furrow on 

 the mesosternum. 



LlABA BALTEATA, Sp nOV. 



Flava 7 nigro-maculata ; flagello antennarum rufo- 

 testaceo; pedibus flavo-testaceis, feinoribus nigro-maculatis ; 

 a/is hyalinis ; costa stiginateque flavo-testaceis. $ . 



Long. 7 mm. 



Hab. Chili (Gervase F. Mathew, R.N.). 



Antennae stout, if anything thicker towards the apex ; 



