128 HYMENOPTERA FROM SARAWAK. 



of the front femora, the apex of the front tibia? and the base of the 

 tarsi, rufous, as are also the apical joints of the hinder tarsi ; the 

 hair on the hinder tibiae and metatarsus long, black and thick ; the 

 fore tibia at the apex on the outer side is armed with a short 

 narrow tooth. The radial, cubital and recurrent nervures are 

 pale ; the first transverse cubital nervure is straight and oblique ; 

 the second is roundly curved ; both the recurrent nervures are 

 received shortly, but distinctly, beyond the transverse cubitals ; 

 the second recurrent nervure has the upper part roundly bent 

 outwardly. The basal five dorsal segments of the abdomen are 

 smooth, shining ; the basal ones minutely and closed punctured 

 and almost bare ; the large apical segment is thickly covered 

 with glistening grey hair and is rounded at the apex ; the 

 scopa is rufous. 



Xyhcopa Shelfordi, sp. nov. 



9 Black, the thorax above, the upper parts of the pleura? and 

 the basal two segments of the abdomen clothed with bright 

 yellow pubescence; the wings hyaline, iridescent, the apex 

 infuscated. The 5 with the sides of the thorax and a broad band 

 on the basal three segments of the abdomen clothed with bright 

 yellow pubescence, otherwise coloured as in the 9 • 



Long : 16 mm. 



Hab. Matang, 3,600 feet. Sarawak (Shelford). 



9 Head densely covered with black hair ; the black hair on 

 the face mixed with white. Front and vertex closely and 

 distinctly punctured ; the furrow on the front is distinct ; its 

 lower half is bordered by distinct, flat, smooth keels ; the clypeus 

 is more strongly punctured than the face and has a smooth flat 

 furrow in the centre. Mandibles smooth and shining ; the basal 

 half in the centre punctured: the apical teeth bluntly pointed 

 and of almost equal length. Thorax above smooth and shining ; 

 the centre of the mesonotum and metanotum bare and impunctate ; 

 the apex of the latter sharply margined. The pubescence on 

 the upper part of the mesopleura? is yellow ; on the hinder edge 

 it is paler; on the rest and on the sternum, black; legs black 

 and covered with black hair ; abdomen black ; the upper 

 surface of the basal two segments covered with yellowish hairl 

 the other segments clothed more sparsely with shorter black 



