BYMENOPTERA FROM SARAWAK. 103 



The middle of the median segment has only a shallow in- 

 distinct furrow, not a deep one, with oblique sides as in luyulris; 

 the apex of the median segment is yellow, the yellow band ex- 

 tending- sideways over the coxa? ; the petiole is short, becomes 

 gradually wider from the base to the apex ; the second segment 

 is not much, nor abruptly narrowed at the base ; in length it is, 

 if anything, shorter than its greatest width ; the clypeus at the 

 end of the eyes is as broad as its length. 



Icaria ocantJiopoda, sp. nov. 



Black, largely marked with yellow ; two small marks on 

 the apex of the petiole and two large ones, extending on to the 

 ventral surface, on the base of the second segment ; the legs 

 yellow, the posterior trochanters and the base of the femora, 

 black ; wings hyaline, the stigma and nervures brownish (worker). 



Long 1 1 mm. 



Hab. Borneo (Shelford). 



Antenna? brownish, marked above with black. Head black, 

 the clypeus, the mandibles, except their teeth, the eye incisions 

 entirely (the yellow mark is straight and oblique on the outer- 

 side), a large mark, narrowed below, and ending in a sharp nar- 

 rowed point above, and the outer orbits, bright sulphur- yellow ; 

 behind the ocelli are two small yellow marks. The clypeus is 

 wider than long ; its sides above are roundly curved ; its apex 

 does not end in a sharp tooth. Thorax black; the edge of the 

 prothorax all round and broadest on the pronotum, two lines on 

 the centre of the mescnotum, two large squarish marks on the 

 base of the scutellum, two broad ones, narrowed and rounded 

 on the inner side, on the post scutellum, the sides of the median 

 segment largely, and a large mark, obliquely narrowed below on 

 . the mesopleura?, orange-yellow. Abdomen black; a mark on 

 the sides of the post-petiole, two large marks on the base of the 

 second segment, continued on to the ventral surftce, which has 

 the basal half yellow ; a nairow line on the apex on the second 

 segment all round and the apical segment, orange yellow. 



The petiole is not quite so long as the second segment ; its 

 basal fourth is greatly and distinctly narrowed compared to the 

 enlarged apical part; the second segment is bell-shaped; its 

 apex about two-thirds of the total length ; the base of the pro- 



