36 IIYMENOPTERA FROM SARAWAK, 



on tbe base of the third segments only, and no oblique ones. 

 Malar space large; the oral region widely open. Front de- 

 pressed in the middle; the centre with a stout keel; the sides of 

 the depression keeled. The third and fourth joints of the an- 

 tennae are equal in length and somewhat longer than the fifth. 

 Legs of moderate length ; the fore tarsi twice the length of the 

 tibiae. Sheaths of the ovipositor densely pilose. 



The middle lobe of the mesonotum is distinctly separated; 

 the scutellar depression is shallow and longitudinally striated; 

 the furrow on the metapleurae is long, wide and deep; above its 

 apex is a longitudinal keel. The occiput is not margined ; the 

 temples are moderately large and are rounded behind. The 

 legs are pilose, but not so thickly as in MyosomcL The clypeus is 

 bordered by a wide oblique depression. The second and third 

 segments are distinctly longer than their width at the apex ; the 

 abdomen is fully twice the length of the thorax. The inner 

 orbits above are distinctly keeled. 



A distinct genus easily known by the area on the median 

 segment, by the longitudinally striated abdominal segments, by 

 the margined upper inner orbits and by the keeled front. 



Shelfordia rajice'ps, sp. nov. 



Nigra, capite, pedibus anticis, prothorace mesothoraceque 

 rufis ; alis fumatis, $ . 



Long : 11 ; terebra 22 mm. 



Hab. Sarawak (Shelford). 



Antennae black; the scape rufous in the middle beneath. 

 Head rufous ; the face and clypeus closely punctured and spar- 

 sely covered with long black hair ; the centre of the face slight- 

 ly raised and smooth. The clypeus is clearly separated, especi- 

 ally at the sides; the top, in the middle, is transverse, its sides 

 rounded ; at the sides is a smooth depression. Mandibles rufous, 

 their teeth black. The vertex is sparsely punctured, especially 

 at the sides ; the depressed front is more shining and smooth. 

 Pro- and mesothorax with the scutellum smooth and impunctate ; 

 the scutellar depression is narrow and is stoutly longitudinally 

 crenulated. The median segment is smooth and is sparsely 

 covered with longish black hair. The anterior wings are uni- 

 formly smoky-fuscous; the hinder have the basal half milk* 



