162 HYMENOPTERA FROM SARAWAK.,. 
face of the adomen; wings hyaline, infuscated towards the apex, 
the nervures and stigma black. ¢. 
Length 12 to 13 mm. 
Hab. Santubong. 
Antenne as long as the body, black; the apical joints 
slightly curved. Vertex strongly, but not closely, punctured, 
more sparsely behind the ocelli; the front closely reticulated ; 
both are sparsely covered with long white hair. Face and clype- 
us thickly covered with long depressed white hair, which hides the 
texture. Prothorax smooth and shining; the pleure with some 
strie in the middle; the pronotum at the apex cleft, the sides 
rising into large, oblique pyramidal, oblique tubercles. Base of 
the mesonotum is coarsely rugosely punctured, and in the middle 
irregularly striated ; its middle at the apex is smooth, shining and 
roundly convex. Scutellum not much raised, smooth and shining. 
Metanotum shining; in the centre is an oblong area, with 
straight sides and apex; from its apical angles issues a short curv- 
ed keel, and from the sides, near the middle, two curved longer 
ones; outside this are two oblique keels; united at the apex by a 
shorter one, which is roundly curved inwardly ; from these keels 
the seoment slopes obliquely to the tubercles, to which they are 
united by some keels; there being also some keels behind them. 
From the tubercles a keel runs round the sides and apex. 
Abdomen smooth and shining ; the petiole, sides and ventral sur- 
face thickly covered with long white hair. The first transverse 
cubital nervure is obliquely bent at the top; the second is roundly 
curved. 
This species is easily separated from the known species by its 
black body. The metathoracic spines, too, are more prominent 
than usual. 
Cerceris malayana, Sp. Nov. 
Black ; the face, clypeus, the scape, 2 broad marks on the 
pronotum, tegulz, post-scutellum, two large marks, irregularly 
oval in shape, on the apex of the median segment, a large broad 
mark on the base of the 2nd abdominal segment ; a broad band— 
widest on the sides—on the apex of the 3rd segment; anda nar- 
row band on the apices of the 5th and 6th, yellow. The four front 
legs yellow, with a broad band on the femora behind; the 
Jour. Straits Branch 
