254 THE CANADIAN ENTOMOLOGIST 



and other characters of t>pical Micraudrena. The male has the 

 tegument of the face entirely black, and the long flagellum is 

 obscurely brownish beneath. 



Andrena candidiformis, V. & C. 



The facial quadrangle is broader than long, not the reverse, as 

 stated in the original description. 



Halictus cyaneiceps, sj). n. 



9 (Type). — Length 8-9 mm.; black, with the front and upper 

 part of sides of face more or less distinctly bluish, contrasting with 

 the pure black clypeus and supraclypeal area; pubescence dull 

 white, forming broad bands at bases of abdominal segments; 

 chpeus little produced; antenna' black; mcsolhorax shining and 

 s;)arscl>' jjunctured on disc posteriorly; scutellum shining, with 

 punctures of different si/es; area of metathorax dull, finely rough- 

 ened, basally obscurely sublineolate, at apical middle there is a 

 depression; posterior truncation not distinctly defined; tegulse 

 piceous; wings greyish hyaline, stigma and ner\ ures dusky amber 

 colour; punctures of abdomen excessively minute; hind spur with 

 short blunt teeth. 



cT. — Length hardly 8 mm.; face broad; clypeus shining, with 

 a broad creamy-while band; fiagellum long, marked with ferru- 

 ginous beneath; area of metathorax shining apically; tarsi dark 

 brown. 



Ilab. — Rio Ruidoso, New Mexico (C. H. T. Townsend) ; the 

 type taken at flowers of Ileliopsis scabra, July 31, alt. prox. 6500 

 tt.; also found (both sexes) on flowers of Potentilla Ihurbcri, July 31, 

 and on July 20, at 6900 ft., at flowers of Verbasctim thapsus. South 

 Fork Eagle Creek, New Mexico, at flowers of Sicyos parvijlonis, 

 Aug. 18. at 8000 ft., and Aug. 19. at 8250 ft. (C. H. T. Townsend). 

 I have had II. cyaneiceps a number of years, and hav^e referred it 

 with hesitation to //. bardiis Cresson and to II. forbesii Rob. It is 

 very closely related to forbesii, but distinguished by the bluish 

 front of the female and dark tarsi of the male. I have not described 

 the structure in detail, where it agreed with H. forbesii. The male 

 is very like that of H. trizonatiis Cress, but is readily distinguished 

 by the broad, short head. Male trizonatiis was taken on Potentilla 

 thurberi at the same time and place as cyaneiceps. 



