154 ENTOMOLOGICAL NEWS. [April, '14 



brown and totally nonmetallic abdomen, together with the very 

 pale tegulae separate it from every other species of the H. 

 perpunctatus group. Like every other species of this group, 

 unless H. sancti-vincenti Ashmead be admitted to it, H. 

 eophilus is a species of the Rocky Mountain region. 



Halictus diversopunctatus sp. nov. 



2 Length 6 mm. Bright olive green throughout, the metathorax 

 bluer. 



Head broad, facial quadrangle square, narrowed below, clypeus but 

 little produced. Entire face rather shiny, although closely and finely 

 punctured above ; front without a median carina below the antennae, 

 supraclypeal area almost impunctate in the middle, not marked off 

 from the lateral areas by a distinct sulcus, the face evenly 

 convex right across in this region, almost to the orbits ; cheeks shiny but 

 finely punctured. 



Mesopleurae shiny, coarsely punctured; metapleurae opaque 

 with a very few faint plicae near the upper end. Mesonotum 

 somewhat shiny, with numerous rather fine and close punctures of 

 three distinctly different sizes, the very fine and the coarsest both less 

 abundant than the medium ones. The punctures especially crowded 

 on either side and just in front of the parapsidal grooves ; median groove 

 obsolete. Basal area of the metathorax narrow, with a low rounded rim 

 limited to a short space immediately on either side of the middle, the 

 surface distinctly lineolate and with numerous, simple, strong plicae 

 reaching the truncation. Tegulae bright brown, impunctate. 



Wings hyaline, very faintly yellow ; stigma pale yellow, costal nervure 

 piceous, the other nervures light brown; second and third submarginal 

 cells subequal. 



Legs dark brown, inner spur of the hind tibia with five well developed 

 teeth. 



Abdomen blunt, discs of the segments with minute punctures, apical 

 margin of the segments narrow and testaceous ; segments 3 to 5 covered 

 with short grayish hair. 



Pubescence pale grayish and rather abundant on the face, cheeks and 

 thorax ; faintly yellowish on the mesonotum and legs, white below. 



Habitat. California, I (type), No. 930, collector and exact 

 locality unknown. 



This species may be separated from all other species of the 

 genus found in North America, with a green abdomen, by the 

 character of the mesothoracic punctures and the configuration 

 of the supraclypeal area. 



