1901.] HYMBIfOPTEKA OF THE " SKEAT EXPEDITION." 33 



the top of the thorax aud base of abdomen has a distinct ohve 

 tuit ; the 2nd recurrent nervure is not broadly and roundly curved, 

 but has the upper and lower parts straight and oblique, and the 

 face and clypeus are much more densely covered with rufous hair. 



The underside of the scape is pale yellowish ; the lower part of 

 the flagellum rufous ; the third joint darker coloured than the 

 others. Head densely covered with rufous pubescence, which is 

 shorter on the face and clypeus than on the front and vertex. The 

 clypeus is closely and distinctly punctured, except in the centre, 

 where it is smooth, which is also the case with the apex, where 

 it is very smooth and shining; the labrum is more projecting 

 than usual and is keeled in the middle. The ocelli are in a curve; 

 the hinder are separated from each other by a distinctly greater 

 distance than they are from the eyes. Thorax covered with olive- 

 yellow pubescence ; the olive tint is more noticeable above than on 

 the pleurae. The pubescence on the base of the abdomen has a 

 slight olive tint : on the rest it is bright rufous above and below. 

 The pubescence on the legs is long, dense and bright rufous ; the 

 apices of the tarsi are piceous. Wings fuscous, with bronzy tints. 



The anterior femora are brownish in front ; the front trochanters 

 ti'iangularly project at the apex.] 



Xtlocopa oollaeis Linn. 



Xylocopa pictifrons Smith. 



6 . One example of what agrees fairly well with Bingham's 

 description of this species in his Fauna of India, Hymenop. 

 p. 538 ; but not with Smith's original description, Trans. Ent. Soc. 

 ii. (1852) p. 42, and in his Monograph of the genus, Trans. Ent. 

 Soc. 1874, p. 275. 



Xtlocopa grajstdioeps, sp. n. 



Nigra, dense fulvo-pilosa ; tarsis ferrugineo-jnlosis ; alls fulvo- 

 hyalinis, nervis nigris. 2 • 



Long. 20 mm. 



Hah. Singapore. 



Head large, nearly as wjde as the thorax. Ocelli larger than 

 usual, they are placed in a triangle ; the hinder are separated from 

 the eyes by one-half the distance they are from each other. 

 Clypeus closely and strongly punctured ; its apex has a depressed 

 margin ; in the centre is a stout, shining, smooth tooth. The apical 

 tooth of the mandibles is large, triangular ; the subapical distinctly 

 projects, is large and rounded at the apex. The front distinctly 

 projects between the antennae ; it is, as is also the vertex, closely, 

 uniformly, and distinctly punctured. The thorax is thickly covered 

 with long rufo-fulvous hair ; the mesonotum is smooth and shining ; 

 the scutellum is strongly, but not very closely punctured, as is also 

 the median segment, except the basal area, which is alutaceous ; 

 the segment has a semiperpendicular slope and is rounded at the 

 top. Wings fulvo-hyaline ; rufous in tint along the fore margin ; 



Peoc. Zool. Soc— 1901, Vol. II. No. III. 3 



