254 E. T. CRESSON. 



Ilali('tn!« coacfus, n. sp. 



9 • — Green, abdomen dark seneous, clothed with a short pale pubescence : 

 head very densely and finely punctured; clypeus slightly produced, with 

 large spnrse punctures, apex broadly purplish and fringed with long yellow 

 hairs; flagelluni. pale brown beneath, especially at tips; mandibles tipped 

 with ferruginous; thorax much less closely punctured than the head ; base cf 

 inetathorax finely, somewhat longitudinally, rugose; tegulje brown; wings 

 hyaline, iridescent, nervures and stigma pale honey-yellow; legs brown-black, 

 clothed with pale pubescence; abdomen ovate, convex, very minutel_y punc- 

 tured, sides and apex thickly clothed with short pale pubescence, apical mar- 

 gin of first and second segments deeply impressed or constricted, especially 

 that of first segment. Length .20 inch. 



Pour specimens. (Belfrage.) Easily recognized by the constrictoJ 

 segments of abdomen. 



Ilalictus ^tiiltii«!>, n. sp. 



5". — Small, head and thorax dull dark green, sometimes tinged with 

 brassy, thinly clothed with a short griseous pubescence; head not broader than 

 thorax, closely and minutely punctured, face broad, clypeus short, spafselj' 

 punctured, purplish-black towards apex which is fringed with long pale yel- 

 lowish hairs; mandibles piceous, sometimes tinged with rufous; antennae 

 short, black, flagelluni more or less pale beneath towards apex; mesothorax 

 very niinutely and sparsely punctured, sometimes almost imperceptably so, a 

 deeply impressed central longitudinal line; scutellum slightly impressed cen- 

 trally; base of metathorax with radiating elevated lines which are sometimes 

 more or less abbreviated; on postscutellum, sides of metathorax and pleura 

 tlie pubescence is longer than elsewhere; tegulse testaceous; wings hyaline, 

 iridescent, nervures and stigma pale testaceous; legs pale brown or fuscous, 

 blackish at base, clothed with pale jjubescence, anterior knees and all the tarsi 

 rufo-testaceous; abdomen smooth and shining, impunctured, more or less 

 thickly pul)e3cent towards apex, the base and sides thinly pubescent, color 

 variable, being sometimes entirely brown-black, sometimes fuscous with the 

 segments testaceous at apex, sometimes more or less testaceous at base, 

 shading into brown or fuscous at apex, sometimes entirely testaceous or dull 

 honey-yellow. Length .16 — .20 inch. 

 Ten specimens. (Belfrage.) 



HalictufS albitarsis, n. sp. 



% . — Dark bronzed-green, sometimes slightly brassy, clothed with a whitish 

 pubescence; head not broader than thorax, densely and finely punctured, 

 sides of face and clypeus densely clothed with an appressed silvery-white 

 pile; mandibles piceous; antennae long, black above, brown or pale fuscous 

 beneath ; mesothorax and scutellum with sparse minute punctures and gener- 

 ally with a distinct impressed longitudinal line on disk and over tegulse; pu- 

 bescence of thorax above erect, longer on postscutellum, sides of metathorax 

 and pleuia; metathorax generally tinged with blue, the base more or less 

 longitudinally rugose, sometimes with well-defined and distinct radiating ele- 

 vated lines or wrinkles; sides of metathorax and pleura finely roughened; 

 tegulse testaceous, sometime dull; wings hyaline, iridescent, nervures and 

 stigma pale testaceous; legs black or piceous, shining, clothed with pale pubes- 



