420 P. CAMERON. 



metamotum. Wings hyaline, a narrow smoky cloud along the apical 

 half of the costa, the apex is broadly smoky, but with a hyaline cloud 

 in the middle, not reaching to the costa and extending along the 

 apical margin to the middle ; the hind wings almost hyaline. Tegulae 

 rufous. 9 . Length 10-11 mm. 



Eyes parallel, not converging above or below malar space nearly as 

 long as the antennal scape. Apex of clypeus with the sides roundly 

 narrowed, the centre slightly but distinctly roundly incised. The third 

 and fourth joints of the antennas are almost equal in length. Hind 

 ocelli separated from the eyes by about two and a half times the dis- 

 tance they are from each other. The puncturation is strong and close, 

 stronger on the thorax than on the head or abdomen ; on the hind 

 femora it is still finer. Basal abdominal segment distinctly narrowed 

 and clearly separated from the second. 



Mendoza, 25th November. 



The extent of the rufous color on the antennae and thorax 

 varies, as does also the extent of yellow on the legs and the 

 metallic coloration varies in intensity. Mandibles broadly 

 red at the base ; apical joint of maxillary palpi testaceous. 

 The apical yellow abdominal stripe is in reality composed of 

 three closely united marks of which the central is the smaller. 



It may be that this is a form of L. coxalis Kirby, but the 

 description given of that species is not very clear ; it has no 

 basal yellow stripe on the abdomen ; the ovipositor reaches 

 near to the scutellum, while with the species here described 

 it only reaches to the middle of metanotum and there is a 

 broad yellow band on the apex of the first abdominal seg- 

 ment. The legs in coxalis are described as " mostly rufous," 

 in pulchriceps the only rufous color is on the hind coxae. 



2. Leucospis bicanaliculata sp. n. 



Black, densely covered with silvery pubescence, especially on the 

 head and metanotum, the tegulae, a small spot on the pleurae below 

 them, the hind coxae except in the centre behind and the basal half of 

 the ovipositor, rufous ; a line on the upper side of the hind coxae, on 

 the upper and lower side of the hind femora, the knees and fore tarsi, 

 yellow ; the hind femora has a large basal and ten minute teeth, closely 

 packed. Basal segment of abdomen about one-half longer than wide, 

 clearly narrower than the second, its centre above is finely longitudin- 

 ally keeled, the keel bordered by distinct, wide, deep furrows, which 

 converge slightly towards the apex ; the ovipositor reaches to its apex 

 and has the basal half rufous. Wings fuscous violaceous. There is 

 usually a yellow line on the apex of the second segment, and there may 



