HYMENOPTERA FROM SARAWAK, 179 
near the apex; the 2nd not quite so close to the apex. The 
eyes are large, reach close to the base of the mandibles and 
converge distinctly on the top. The face is roundly convex ; 
the clypeus is nearly as long as it, is broader than long and 
transverse at the apex. The tegule are moderately large. The 
scape of the antenne is long and slender ; the flagellum thick. 
The affinities of this genus appear to be with Noma from 
which it may be known by the pectinated spurs, by the large, 
keeled median segment, by the ventral surface being thickly 
covered with long hair, by the distinct anal rima and by the 
stoutly keeled collar. Having only a single specimen I have 
not been able to make an examination of the trophi, but the 
maxillary palpi appear to be 6-jointed. 
Ctenonomia carinata, Sp. nov. 
Black ; the head and thorax sparsely covered with short, the 
legs and ventral surface thickly with long white hair, on the 
under side of the tarsi it has a fulvous tint; the wings hyaline 
the nervures and stigma black. 9°. 
Length 6 to 7 mm. 
Hab. Matang. 
Head opaque, the vertex more shining and smoother; the 
front has a narrow keel down the centre; the clypeus is irregu- 
larly punctured on the apex. Mesonotum opaque, closely, min- 
utely punctured ; in the centre are three impressed lonzitudinal 
lines. The striz on the median segment are stout, clearly 
separated, irregular, and mostly reaching to the apex of the 
basal part; the bounding keels project as teeth at the apical 
angles; itis bare, shining and impunctate as is also the apical 
slope. Abdomen shining: the apices of the seyments brownish 
and bare; their base covered with close white pubescence ; the 
anal rima is brownish. 
AXylocopa caerulea, Fab. 
Mr. Shelford has taken the rare 6 of this species. The 
head is narrower than in the Q ; and instead of the head, thorax 
and base of abdomen being covered with blue pubescence, they 
are covered with light soot-coloured hair; the hair on the abdo- 
R. A. Soc., No. 39, 1903. 
