16 HYMENOPTERA FROM BORNEO. 



lines on the apices of the abdominal segments — the basal 5 

 dilated at the sides, the 6th of equal width, the 7th also of 

 equal width and occupying the apical three-fourths of the seg- 

 ment, — bright lemon-yellow. Antennas broadly ringed with 

 white — the white part wider than the black basal or apical. 

 Legs yellow, the hind femora fulvous ; an irregular line, 

 dilated in the middle on the hinder part of the 4 anterior 

 femora, a line, narrowed at the base, on the hinder part of the 

 4 anterior tibiae, the apical three joints of the 4 anterior tarsi, 

 the hind coxae, except broadly at the apex above and more 

 regularly and narrowly at the apex below f the base of the basal 

 joint of the trochanters, the apical one more irregularly, and 

 the apical fourth of the hind femora and tibiae, black. Wings 

 hyaline, the nervures and stigma black. 9 . 



Length 14 mm. 



Kuching. June. 



Head smooth, the face and clypeus sparsely punctured in 

 the middle ; it is wider than the thorax ; the temples wide, 

 roundly narrowed, the occiput roundly, deeply incised, mar- 

 gined. Pro- and mesothorax smooth ; the apex of propleurae 

 obliquely, finely punctured ; the apical half of the mesono- 

 tum in the centre with large, deep punctures, placed irregu- 

 larly, the base in the centre weakly irregularly punctured. 

 Areola smooth ; the basal lateral areae of metanotum strongly 

 deeply punctured, the apical strongly transversely striated. 

 Pro- and upper half of mesopleurae smooth, the lower half of 

 the latter closely finely punctured ; the metapleurae coarsely 

 punctured. Post-petiole finely, closely striated in the middle, 

 the sides with large scattered punctures ; the 2nd, 3rd 

 and 4th segments are strongly, the 5th weakly longitudinally 

 striated. 



C. rufo-femora, Cam. May be known by the areola being 

 irregularly strongly punctured on the apical half and by the 

 basal abdominal segments having separated spots, not con- 

 tinuous lines. From the Indian known species it may be 

 known by the black mark on the face, by the black areola, 

 which is also shorter and not transverse at the apex, but 

 rounded inwardly. 



Jour. Straits Branch, 



