2 Cameron, Hymenoptera Orientalia. 



with long black hair, although not so thickly as at the apex, 

 where it is densely covered with long fulvous hair, in the 

 second segment beneath not having three longitudinal 

 keels, in the ventral segments and legs being distinctly 

 piceous, and in being two mm. smaller. 



Head slightly wider, but not quite so long as the 

 thorax; rounded in front, but not quite so much so 

 behind, very coarsely rugosely punctured, the punctures 

 longest and deepest in the centre of the front and vertex; 

 behind the eyes it' is developed to a greater extent than 

 their greatest length; the eyes are small. Front and 

 vertex covered with long black hairs ; above the antennae 

 more thickly with silvery hair ; on the clypeus it is equally 

 long and pale golden. Antennal tubercles piceous at the 

 apex, shining. Clypeus reddish, the apex bordered with 

 black. Mandibles broadly red in the middle. Antennae 

 longer than the head and thorax united ; distinctly tapering 

 towards the apex ; the scape shining, thickly covered with 

 long silvery hair ; piceous at the apex ; the flagellum bare 

 of hair except at the base, distinctly pruinose towards the 

 apex; black, the apical joints rufous beneath; the third 

 joint about one-third longer than the fourth; thorax 

 quadrangular, scarcely widened towards the apex ; the 

 mesonotum, with a semicircular space on the top of the 

 median segment, reddish, coarsely punctured, the punc- 

 tures large and deep; the pronotum bearing long, blackish 

 hairs ; the mesonotum with depressed, pale golden, shorter 

 hairs; the top of the median segment rounded, and bearing 

 a row of large, deep punctures ; the rest of it oblique ; the 

 sides with a row of large areae ; the centre has a blistered 

 appearance and an indistinct keel down its centre ; 

 it is sparsely covered with long blackish hairs. Propleurae 

 reticulated ; the metapleurae also reticulated, but with the 

 reticulations much larger and deeper ; the mesopleurae 

 smooth, the lower part densely covered with long silvery 



