Hymenoptera from Central America. 373 



black hair ; the inner orbits above the antennas and the entire 

 face below them yellow ; the apex of the clypeus waved, the 

 centre dilated ; the mandibles and palpi entirely black. 

 Thorax densely covered with long black hair. The mediaa 

 segment gradually rounded and obscurely transversely striated; 

 at the base in the centre is a short, wide, deep longitudinal 

 furrow united to a longer narrower transverse one. The 

 propleuree are slightly hollowed; immediately over the coxse 

 is a sharp, distinct, oblique keel, which towards the middle 

 ot" the coxffi bends more obliquely downwards, and from this 

 bend a narrow curved keel runs up towards the tegulas, but 

 not reaching them. At the base of the metapleur^e shortly 

 below the middle is a moderately large fovea. Abdomen as 

 long as the head and thorax united, densely covered with 

 black hairs, especially towards the apex. Legs long, sparsely 

 haired ; the front knees and tibiae and the hinder tarsi, except 

 the apical joint, orange-yellow. The tirst cloud in the wings 

 extends from the base of the first recurrent to shortly beyond 

 the second recurrent nervure ; the apical cloud commences at 

 the end of the radial nervure ; the nervures are orange, except 

 in the clouded parts; the second cubital cellule at the top and 

 bottom is a little shorter than the third ; the recurrent nervures 

 are both received shortly before the middle of the cellule. 

 The hind wings are clouded at the apex. 

 Allied to S. omiltemius. 



Salius imitatrix, sp. n. 



Niger, basi antennarum pedibusque anterioribus rufis ; alls hyalinis, 



fusco-bitasciatis. § . 

 Long. 9 millim. 



Hab. ^lexico, Cuernavaca in Morelos {R. H. Smith). 



Almost identical in coloration with Pseudagenia isthmica^ 

 Cam., from Chiriqui. Antennae covered with a microscopic 

 down ; the basal three joints rufous. The head from a little 

 above the antennse covered with a pale golden pile; the 

 mandibles pale, at the base, piceous before the teeth, which 

 are black ; a shallow furrow leads down from near the ocelli ; 

 the hinder ocelli are separated from each other by a slightly 

 greater distance than they are from the eyes, which converge 

 a little at the top. Thorax covered with a pale golden down ; 

 the collar white on either side above. Abdomen pruinose, 

 tlie apex densely covered with rather long pale yellowish 

 hairs. The four front femora have the basal half black and 

 the apical half reddish ; the fore tibiae, the two basal joints of 

 the fore tarsi, the middle tibia^ broadly at the base, and the 



Ann. & 2Iag. N. Hist. Ser. 6. Vol xix. 27 



