Vol. XXVJ] ENTOMOLOGICAL NEWS. 29! 



A new Halictine Bee from the Northern United 



States (Hym.). 



By MARION DURBIN ELLIS, Boulder, Colorado. 

 There is a rather common Halictus of the northern and 

 eastern States which has generally passed as H. connexus 

 Cresson. Genuine H. connexus from Texas, received through 

 the kindness of Mr. J. C. Crawford, proves to be distinct, so it 

 becomes necessary to describe the so-called H. connexus as 

 new. 



Halictus subconnexus n. sp. 



9 . Length, 6 mm. ; head and thorax blue green ; abdomen black, 

 with distinct metallic green reflections, the broad outer margin of each 

 segment brown, shading to testaceous at the edge. 



Facial quadrangle almost if not quite as broad as long, a little nar- 

 rower below than above ; vertex closely punctured ; lateral areas of 

 the face somewhat shiny, the punctures a little more crowded along 

 the inner margin of the eyes than about the base of the antennae; 

 supraclypeal area and clypeus more or less brassy, sharply lineolate, 

 and with fine, scattered punctures ; distal half of the clypeus shining 

 black, margined with rather long, golden yellow hair; flagellum dark 

 brown, almost black ; cheeks not large or prominent. 



Thorax with coarse, more or less confluent punctures on the sides ; 

 mesonotum rather broad, its surface finely but sharply lineolate, and 

 with very fine, widely separated punctures, which are closer, but still not 

 crowded, along the posterior margin ; median groove distinct, parapsi- 

 dal grooves short and somewhat indistinct ; scutellum distinctly two- 

 parted, the punctures crowded around its margins and along the me- 

 dian groove; truncation of the metathorax not entirely surrounded by 

 the low sharp rim, which is well developed on either side near the 

 base; basal area of the metathorax distinctly concave in the middle, 

 the outer margin elevated into a short rounded rim, which truncates 

 the middle third of the strong, simple but crooked plicae; plicae at the 

 sides long and continued well onto the full, rounded, lateral areas, 

 where they seem to converge toward the dorsal end of the rim at the 

 base of the truncation; tegulae brown. 



Wings hyaline, nervures and stigma testaceous, width of the second 

 submarginal cell not more than one and one-third in the third. 



Legs dark brown, tarsi reddish brown, hind spur of the hind tibia 

 with four teeth. 



Abdomen broad and shiny, the disc of the first segment impunctate ; 

 pubescence pale ochraceous, rather abundant on the legs, the post- 

 scutellum, the ventral surface of all, and the dorsal surface of the last 



