38 HYMENOPTERA FROM SARAWAK. 



(h)' The keel on the second segment broad, not extending 

 to the apex of the segment, its base not smooth. 



The second segment at the base on either side of the 

 keel deep black, striated, the middle segment deep black ; 



fuscipennis. 

 The second segment at the base on either side of the 

 kee 'brownish, not striated; the middle segments brown- 

 ish ; trichiura> 

 Myosoma forticarinata, sp. nov. 



Long : lo ; terebra 19 mm. 9 . 



Hab. Sarawak, Borneo (Shelford). 



Antennas black, the scape rufous. Ilead and thorax rufous, 

 smooth and shining ; the face rugosely punctured, the punctures 

 running into reticulations and sparsely covered with longish 

 black hair ; there is a narrow furrow on the front. Mandibles 

 and palpi rufous ; the mandibular teeth black. The four front 

 legs are rufous ; the middle pair darker in tint, especially on the 

 tibia? and tarsi ; the tibiae and tarsi are thickly covered with 

 longish dark hair. Wings dark fuscous; the nervures and 

 stigma black. Petiole broadly depressed, on the sides the 

 central part is bordered by stout keels and there is a stout keel 

 down the centre ; the basal part bears some stout irregularly 

 curved keels. The second segment bears a complete central 

 and a shorter lateral keel, which converge slightly towards the 

 apex ; the basal area is triangular, smooth and shining ; the base 

 in the centre is depressed, the centre bears some stout irregular 

 keels ; the outer parts bear stout, oblique keels ; the inner parts 

 at the apex being smooth and more deeply depressed than the outer. 

 The two transverse depressions are wide, deep and stoutly longi- 

 tudinally striated ; the part between the two is stoutly longitudinal- 

 ly striated. The apical segments are thickly covered with long 

 black hair. The sheaths of the ovipositor are stout and are 

 thickly covered with black hair. The tarsal spines are rufous. 



Myosoi/ia brevicarinata, sp. nov. 



Long : 12 ; terebra 21 mm. $ 

 Hab. Borneo ( Shelford ). 



Scape of antenna; rufous ; the Hagellum is brownish beneath, 

 especially towards the apex. Head rufous; the face slightly 



