Hymenoptera. 195 



larly }tunctnred ; hinder armed somewhat thickly with shorts 

 stout blunt spines. Apical tarsal points rnfons. Frontal tubercle 

 smooth and shining: it is followed by 2 keels which have between 

 them a few transverse keels . they are prolonged below the 

 antennae. 



Apart from the other differences this species may be known 

 from L. sj/iniferus by the distinct smooth tubercle on the front. 



Megachile tardnla, sp. nov. 



Black, the pubescence white, on the face pale ochraceous, on 

 the mesonotum tinged with fulvous : apical joints of tarsi rufous ; 

 the hair on the underside of tarsi tinged with rufous. Wings 

 clear hyaline, the nervures and stigma black, 



Length 9 mm. 



Brak Kloof. Mrs. G. White. 



Apex of abdomen with eight teeth ; the central two the 

 larger, stout, the space betvveen rounded at the base, as long as 

 wide, the second sm.aller and sharper, the outer two shorter and 

 blunter ; the third separated from the second by a greater distance 

 than it is from the fourth ; outside the fourth is a short, blunt 

 tubercle. Mandibles with two distinct large teeth ; the second 

 shorter than the first, and not obliquel}- pointed like it. Head, 

 pro- and mesothorax closely punctured ; the metanotal area finely 

 rugose, opaque ; the rest closely punctured, more closely and 

 rugosely in the centre than ou the sides. The penultimate segment 

 of the abdomen is thickly covei-ed with long black hair ; the last 

 above entirely with white pubescence, as are also the apices of the 

 others. The segments are closely punctured, the apical more 

 strongly and closely than the others. Fore legs not dentate. 



Megachile W hiteana, sp. nov. 



Black ; the pubescence on the front, face and clypeus white 

 on the occii)nt and back of thorax dark rufous, on the pleura3 and 



