30 PBOCEEDINGS OF THE NATIONAL MUSEUM. vol.65. 



HALICTUS (CHLORALICTUS) CONSONUS, new species. 



Male. — About G.o-7 mm. long; head and thorax very dark blue- 

 green; abdomen black; pubescence white. Facial quadrangle some- 

 what longer than broad; inner orbits converging sharply below; 

 antennae black, second and third joints of about equal length; fla- 

 gellum dark testaceous beneath; front above the antennae very closely 

 punctured, the punctures becoming more open and sparse below; 

 supraclypeal area and clypeus microscopically lineolate, sparsely 

 punctured; clypeus black; mandibles black, slightly reddened api- 

 cally. Thorax with short, rather dense pubescence; mesothorax 

 microscopically tessellate, quite closely pimctured, the punctures 

 more sparse on the disk; scutellum punctured; disk of propodeum 

 long, shining, with plicae on the sides, the median portion with irreg- 

 ularly anastomosing rugae, apex polished; truncation distinct later- 

 ally; tegulae dark, impunctate. Abdomen shining, sparsely pubes- 

 cent, narrowly ovate; segments with transverse linoolations; the only 

 punctures piliferous; apical margins of segments polished. Wings 

 faintly dusky; anterior wing 5 mm. long; stigma and nervures dark; 

 second submarginal cell as broad as high, contracted slightly abore, 

 receiving the first recurrent nervure near the apex; third submarginal 

 higher than broad, hardly contracted above, about one and one-half 

 times as long as the second on marginal. Legs black, with dull white 

 pubescence, except on the tarsi where it is yellowish. 



Habitat. — Colcbrook, Connecticut, September 1-7 (W. M. Wiieeler). 



Type.— Ca.t. No. 26429, U.S.N.M. 



Differs : From ruidosensis Cockerell by the shape and sculpturing of 

 the disk of propodeum; impunctate abdomen ; flagellum paler beneath. 



From mridatus Lovell by the darker thorax; more closely punc- 

 tured mesothorax; sculpturing of disk of propodeum. 



HALICTUS (CHLORALICTUS) PRAEPES, new species. 



Male. — About 6.5-7 mm. long; head and thorax dark greenish 

 blue; abdomen shining black ; pubescence white, rather sparse. Facial 

 quadrangle longer than broad; orbits converging sharply below; 

 antennae dark brown, third joint longer than second; flagellum tes- 

 taceous beneath; front above the antennae very closely punctured; 

 below, with more scattered, shallow punctures, and covered with 

 dense pubescence ; lower portion of clypeus black ; clypeus and sup- 

 raclypeal area without distinct punctures. Mesothorax shining, rather 

 sparsely punctured; scutellum distinctly rounded upward, shining, 

 almost without punctures; dish of propodeum slightly elevated pos- 

 teriorly, shining, with few rugae extending across the disk and on to 

 the sides of the propodeum, faint reticulations between the rugae; 

 truncation distinctly laterally, but not sharply defined; sides of 

 propodeum rugose; tegulae dark, impunctate. Abdomen slenderly 



