Records of Bees. 287 



extremely densely punctured ; mesothorax minutely reti- 

 culate, with rather sparse small punctures ; hind spur with 

 only extremely minute saw-like teeth. 



Hub. Waipara, New Zealand, Nov. 21, 1915 {Guy 

 Brit tin). 



Mr. Brittin took four females, two with dark tegulre, two 

 with rufo-testaceous tegulse. I thought at first that I could 

 distinguish two species, that with darker tegulse being the 

 true H. smithii (familiaris, Smith) and the other new. 

 After minute comparisons, in Avhich I am fortunately able 

 to include a co-type of smitliii from Smithes collection, I 

 conclude that there is only one variable species. The hind 

 margins of the first and second abdominal segments of 

 H. smithii are very narrowly vibrissate with white hair, 

 though this is not always very evident. Cameron (Trans. 

 N. Zealand Inst. vol. xxxii. p. 17) separates smithii from 

 sordidus and huttoni by tlie character of the base of median 

 segment (metathorax), but his statement is unsatisfactory, 

 as the sculpture in smithii is very delicate, appearing rugose 

 under a low magnification, but showing fine plicse under a 

 higher. 



Halidus gulosus punctiferus, subsp. n. 



? . — Like H. gulosiis {H. arcuatus gulosns, CklL), but 

 mesothorax more closely punctured, especially at sides of 

 middle, where the punctures are hardly separated by a space 

 equal to the width of one ; the hind margins of the abdo- 

 minal segments are very narrowly or often scarcely at all 

 pallid. Wings brownish. Very like H. craterus, Lovell, 

 but easily separated by the impunctate hind margin of first 

 abdominal segment and the larger stigma. 



Hab. Boulder, Colorado, tw^enty-six specimens with the 

 following data : March 25 {Hite) ; March 22 [Hite) ; 

 April 11 {Rohwer) ; March 30, fls. Salix bebbiana (Rohiier) ; 

 May 22, fls. Salix luteosericea {Rohiver) ; April 23, fls. 

 Taraxacum taraxacum {Rohwer) ; April 14, fls. Rulac 

 texanum {Hite) -, April 14, fls. Prunus pennsylvanica (Hite) ; 

 May 20, fls. Bursa bursa-pastoris (Rohiver); May 13, fls. 

 Prunus melanocarpa (Rohwer) ; Aug. 14 (Rohwer). 



