HALICTTTS. 33 



with the margins of the first and second segments constricted ; the 

 iipical margins of the segments with pale fulvons fascia?. 



Jlah. White Nile. 



9. Halictus albo-fasciatus. 



Female. Length 5 lines. — Black, pubescent ; the first and three fol- 

 lowing abdominal segments with their apical margins white, uot 

 pubescent. Head rotundate, the face thickly covered with palo 

 fulvons pubescence, that on the cheeks nearly white. The thorax 

 thickly clothed above with fulvous pubescence, on the sides and 

 beneath it is paler ; the legs rufo-piceous, the tarsi and x^osterior tibioe 

 palest, clothed with short glittering pubescence ; wings subhyaline, 

 the nervures and tegulae rufo-testaceous. Abdomen smooth, slightly 

 shining, and with a thin scattered pale pubescence, that on the 

 apical segment black. 



Hah. South Africa, Burghersdorp, 



10. Halictus diver sns. 



Fi-male. Length 3| lines. — Black. The face and cheeks with thin cine- 

 reous pubescence : the clypens produced and strongly punctured, the 

 Hagellum obscurely fulvous beneath. The mesothorax and scu- 

 tellnm closely punctured ; the postscutellum with white tomen- 

 tum, also a little white tomentum at the insertion of the posterior 

 wings ; the wings subhyaline and iridescent, the tegulae and ner- 

 vures dark rufo-piceous ; the legs also dark rufo-piceous, the tarsi 

 pale ferruginous. Abdomen smooth and shining ; a band of white 

 ^omentum at the basal margins of the second and three following 

 segments ; the apical segment with sooty black pubescence ; be- 

 jieath, the segments fringed with pale pubescence. 



Hah. Port Natal. 



11. Halictus communis. 



Fi male. Length 4 lines. — Black, with the legs and abdomen rufo- 

 piceous. Head rotundate ; the clypeus very slightly produced ; the 

 sides of the face with a little hoary pubescence ; the flagellum ob- 

 '^curely fulvous beneath, closely and finely piinctured. The meso- 

 thorax, the scutellum, and postscutellum not so closely punctured 

 ns the head ; the metathorax truncate, its base longitudinally 

 striated, the margin of the truncation smooth and shining ; the 

 wings hyaline and iridescent, the nervures and tegulte rnfo-testa- 

 ocous. Abdomen oblong-ovate, shining, and finely punctured, the 

 ''xtreme base impunctate ; the apical margins of the three basal 



I) 



