Vol. XXV] ENTOMOLOGICAL NEWS. 153 



Mexico, in the Agricultural College building, I, cotype, May 8, 

 1895 (Cockerell No. 2930). 



This species looks very like and is closely related to H. 

 pruinosifomnis Crawford, and H. lazulis Ellis, from which the 

 very sharp lineolation of the mesonotum clearly separates it. 



Halictus eophilus sp. nov. 



9 Length 6 mm. Head and thorax rather light bluish-green, clypeus 

 and supraclypeal area shiny and a little brassy; abdomen clear brown, 

 margins of the segments much paler. 



Face round, clypeus somewhat produced, closely punctured, vertex, 

 between the ocelli, shiny ; ocelli glassy white and larger than in H. 

 connexus Cresson (which is a much larger bee). Antennae dark brown, 

 paler beneath. 



Mesothorax broad, disc rather shiny, with only very weak lineola- 

 tions, but with numerous, close, only moderately fine punctures, 

 which are quite evenly distributed over the entire mesonotum ; 

 median groove distinct but not deep, parapsidal grooves rather indis- 

 tinct. Metathorax not strongly retracted, the truncation without a rim ; 

 a distinct shiny rim around the basal area, widest immediately on either 

 side of the middle, and extending well laterally, truncating the strong, 

 crooked rugae. Tegulae clear, pale testaceous. 



Wings whitish hyaline, stigma and nervures light testaceous, costal 

 nervure reddish brown. 



Legs brown, testaceous on the knees and tarsi. 



Abdomen shiny, but finely and scatteringly punctured, margins of the 

 segments testaceous; segments three to five and sides of one and two 

 clothed with a thin white pubescence. 



Pubescence of the face, sides and legs white and very scant, a little 

 denser on the cheeks. 



Habitat. La Cueva, Organ Mountains, New Mexico, alti- 

 tude 5300 feet, r (type), at flowers of Datura meteloides 

 DC., September 5, before sunrise (Townsend) ; I, cotype, at 

 flowers of Datura meteloides DC., August 31 (Townsend) ; r, 

 cotype, at flowers of Nuttallia wuiltiflora, September 2 (Town- 

 send) ; Las Cruces, New Mexico, i, cotype, on Hclianthus, 

 June 10, 1894 (Cockerell No. 917). 



This species is clearly a near relative of H. perpunctatus 

 Ellis, and H. pruinosiformis Crawford, with which it shares 

 the rimmed and rugose basal area of the metathorax, and the 

 close even puncturing of the mesonotum. The light clear 



