20 HYMEXOPTERA FROM BORNEO, 



and top of the clypeus broadly, labrum, palpi, a lin8 on the 

 lower edge of the propleurae, tegulae, a conical mark on the 

 apex of the middle lobe of mesonotum, scutellums, a square, 

 large mark between the two keels of metanotum, the apical slope 

 except a small square black mark in the middle of the apex, 

 tubercles, a mark, with the apical two-thirds dilated, the 

 basal narrowed, its base projecting upwards and downwards, 

 the base of the dilated part roundly curved upwards, the apex 

 straight, oblique on the lower part of mesopleurae, a conical 

 mark below the hind wings, the upper part of the metapleurae 

 broadly, the base of the 1st abdominal segment, broadly, the 

 apices of the 1st to 6th, the bands dilated backwards on the 

 sides, a broad band on the middle and sides of the 7th seg- 

 ment, laterally projecting to the base, and the apex of the 

 8th broadly, above projecting to the base, where it becomes 

 gradually narrowed, and the ventral segments, except the last, 

 yellow. Antennae pale yellow, the base and apex broadly 

 black, the base more broadly than the apex — the 4 basal and 

 the basal half of the 5th and the apical 7 joints. Legs with 

 the coxae pale yellow, the apical half of the hinder black below, 

 the mark incised in the middle ; the femora and trochanters 

 fulvous, the hinder deeper in tint than the anterior, the tibiae 

 yellow, tinged with fulvous ; the 4 anterior tarsi fuscous, the 

 hinder white ; the apex of the hind femora broadly black, 

 wings hyaline, the nervures and stigma black. 9 . 



Length 12 mm. ; terebra 2i mm. 



Kuching. December. 



Head smooth, the face sparsely pilose. Pro- and meso- 

 thorax smooth ; the depression on propleurae broadly striat- 

 ed ; the upper part of the mesopleurae depression striated more 

 stoutly. Base of metanotum finely closely, longitudinally 

 striated, the striae interlacing ; the part between the keels 

 finely longitudinally reticulated ; the apical slope coarsely 

 transversely striated. Metapleurae smooth at the base, the rest 

 somewhat stoutly, obliquely striated. Basal 4 segments of 

 abdomen closely punctured, the puncturation becoming gradu- 

 ally weaker. Hind tibiae and tarsi sparsely, but distinctly 

 spinose. 



Tour, Straits Branch, 



