HYMENOPTERA FROM SARAWAK. 37 



white ; the nervures and stigma are black ; in the anterior is an 

 oblique white cloud on the base of the first cubital cellule and 

 extending obliquely into the discoidal, The front legs are 

 rufous like the thorax; the base of the middle coxae rufous; the 

 rest of them and femora piceous ; the hinder legs are entirely 

 black; the coxae impunctate. The petiole is raised in the centre ; 

 the raised part is bordered by an irregular stout keel ; the centre 

 towards the apex is irregularly transversely striated. The 

 centre of the second segment is raised, the raised part is border- 

 ed by a keel and becomes gradually narrowed towards the apex 

 which is sharply pointed ; it is irregularly striated ; bordering 

 this is an area of equal width extending from the base to the 

 apex of the segment; it is stoutly transversely striated, with 

 some irregular longitudinal striae in the middle ; outside this is 

 an area which becomes gradually wider towards the apex and 

 bears some stout, irregular striae. The third segment and the 

 basal two-thirds of the fourth are stoutly longitudinally striated ; 

 the transverse furrow on the base of the third segment is 

 stoutly striated ; the apical segments are smooth ; the basal four 

 ventral segments are milk-white. 



Myosoma, Brule 



The species of this genus here described are black; with 

 the head, thorax and the two or four anterior legs rufous, and 

 the wings dark fuscous. The species may be divided into two 

 sections : — 



(a) Head, thorax and the four anterior legs rufous. The 

 third segment with a deep wide transverse striated fur- 

 row near the centre, the base stoutly, longitudinally 

 striated ; forticarinata. 



The third segment without a transverse furrow ; the 

 base not stoutly striated ; brevicarinata. 



(b) Head, pro- and mesothorax rufous, the two anterior 

 legs rufous. The ovipositor not much longer than the 

 body. 



(a)' The keel on the second segment narrow extending to 

 the apex of the segment; its base and apex dilated smooth 

 and shining; loagicarinata. 



