Records of Bees. 273 



larger than second. Small joints of tarsi becoming ferru- 

 ginous ; spurs yellowish white. Abdomen broad for a male, 

 quite hairy, the lateral bases of second and third segments 

 with denser hair, making rather inconspicuous patches ; 

 surface shining, with very fine close punctures, about the 

 same on first two segments, but becoming weaker beyond ; 

 hind margins of segments slightly reddish pallescent. 



Hab. Adelaide, Australia (Schomburgk). Berlin Museum. 



Halictus chapmani, sp. n. 



? . — Length about 7 mm. 



Very close to H. reprcesentans, Sm., but smaller. Smith 

 compares reprcesentans with the European leucozonius ; the 

 present species, compared with leucozonius, is much smaller, 

 with narrower (instead of broader) second s.m., third t.-c. 

 and second r. n. much weakened, clypeus less produced, 

 mesothorax more finely punctured, hind spur with a big trun- 

 cate subbasal tooth, and a long low lamina beyond (with a 

 series of nodules in leucozonius) , &c. In size and general 

 appearance If. chapmani resembles not leucozonius, but 

 lineolatus, Lep. The sculpture is essentially as in repra?- 

 sentans. Black, the abdomen shining, the hind margins of 

 the segments broadly very dark reddish ; hair of head and 

 thorax rather dull white, not at all fulvous or ochraceous ; 

 mandibles chestnut-red, black at base; clypeus broad, very 

 shiny, with large well-separated punctures; front dull and 

 granular, but under the microscope more shining, with minute 

 punctures between longitudinal ridges ; flagellum dark 

 brown beneath, redder apically; mesothorax and scutellum 

 shining, but quite closely punctured, anteriorly on meso- 

 thorax ridges are developed like those on front, only trans- 

 verse ; area of metathorax semilunar, with fine longitudinal 

 ridges, more or less irregular and connected by cross-ridges ; 

 posterior truncation sharply defined at sides; pleura with 

 much white hair; tegulaj shining rufo-piceous. Wings very 

 faintly dusky, nervures and stigma reddish sepia; b. n. very 

 nearly reaching t.-m. ; second s.m. receiving first r. n. before 

 end ; third s.m. considerably larger than second, third t.-c. 

 with only a single curve. Legs very dark reddish brown, 

 with white hair ; abdomen broad, rather hairy, except middle 

 of first three segments, the first two segments finely punc- 

 tured, shining ; base of second segment with a white hair- 

 patch on each side, third and fourth with thin indistinct basal 

 hair-bands; second ventral segment pollen- collecting. 



Hab. Western Australia (Preiss). Berlin Museum, 2564. 



