146 HYMENOPTERA. 



the scutellum. Abdomen pointed at the apex, shining, and 

 having a metallic iridescence ; the extreme lateral margins of 

 the segments have a white fringe ; the brush on the abdomen 

 beneath yellowish white. 

 Hab. Port Natal. 



9. LlTHURGUS RUBRICATUS, n. S. B.M. 



Female. Length 5 lines. Black, the face covered with 

 silvery-white pubescence, at the base of the clypeus is a rugose 

 elevation or tubercle, the flagellum of the antennae rufo-piceous 

 beneath. Thorax, the disk rugose, the tubercles fringed with 

 white pubescence, the sides of the metathorax covered with a 

 mixture of black and griseous pubescence ; wings hyaline, their 

 nervures black. Abdomen, the apical margins of the segments 

 fringed with ochraceous pubescence; the apex clothed with bright 

 ferruginous pubescence ; beneath, the pollen-brush is fulvous, 

 brightest towards the apex. 



Male. Similarly coloured to the female, the face not tuber- 

 culate, the tarsi elongate, slender, the claw-joint rufo-testaceous; 

 about the middle of the basal joint of the posterior tarsi within 

 is a thin raised oblong tooth or elevation ; the posterior coxae 

 and femora incrassate, the femora slightly bent. 

 Hab. New Holland. 



10. LlTHURGUS DENTIPES, n. S. B.M. 



Male. Length 5 lines. Black, the face has a clothing of very 

 pale yellow pubescence, that on the sides of the thorax is fusco- 

 griseous ; flagellum testaceous beneath, mandibles tridentate. 

 Thorax, the disk thinly covered with ochraceous pubescence; 

 wings subhyaline, nervures ferruginous ; the legs beneath fringed 

 with sooty-black pubescence ; the apical joints of the tarsi rufo- 

 testaceous, the claw-joint as long as the three preceding ones ; 

 the posterior coxae and femora incrassate, the latter somewhat 

 flattened beneath and produced at its apex on each side, forming 

 two flat broad teeth or spines ; the spines which arm the apex 

 of the tibiae black, long and stout. Abdomen short, flat, and 

 having the margins slightly testaceous ; at the base, sides and 

 apex a short black pubescence. 

 Hab. New Holland. 



11. LlTHURGUS TUBERCULATUS. 



Lithurgus tuberculatus, St. Farg. Hym. ii. 346. 3. 

 Hab. South America ? 



