. 19:'. 



well impressed; truncation of inotatliorax williout a salient rim, finely 

 lineojlated and witli fine (diliqnc punctures pointing; downward; hase of 

 metathorax finely irregularly longitudinall v wrinkled not reaidiing the 

 apex, the intervening space finely lineolated but sliinv; ineso])!eur.ii' 

 finely roughened, with large irregular shallow ininctures; nielaideur;ic 

 finely rugose, appearing as punctures under a low pow(M-, at upi)er edge 

 distinctly punctured; wings hyaline, nervures <ind stigma hrownisli; 

 tegulae largely testaceous; -il- lon;en hihudv. shiny, not lineohited. rather 

 finely, closely punctured, the fir.st segment more sparsely so; the depres- 

 sed apical margins of segments inclining to reildish; ])ase of the 4th 

 ventral segment medially with a triangular elevated enclosure. Length 

 about 6 mm. 



Ormsl y Co. Nev.. duly (Baker.) This is an Evylaeus. 



5018 Halictus cyaneonotus n. sp. 



Head and tliorax dark green, dull, metathorax a deep Prussian hlue, 

 greatly contrasting, abdoniien black, with metallic reflections; ])idiesceinc(- 

 of head and thorax ochraceous; f.udal (piailrangle broader than long; 

 face above antennae with fine crowded punctures somewhat sparser ami 

 coarser below; clypeus and snpraclypeal area largely purplish-black, 

 sparsely punctured; inesothorav finely very distinctly lineolateil, with 

 close rather coarse punctures; niedian and ])ara|)sidal grooves plain; basp 

 of metathorax not enclosed, v ith very luimerous irregular hmgitudinal 

 rugulae, reaching apex; trunc;tion round(>il above, the surfac(> finely 

 lineolate and with a few faint striae running upward from the center of 

 the base; wings slightly yellowish-dusky; second subniarginal large, 

 narrowed to marginal; nervures and stigma testaceous; tegulae dark 

 with a reddish center; legs l)rown, pubescence slightly ochraceous; hind 

 inner spur with about three long teeth; abdomen impunctate, . finely 

 transversely lineolate. bases of segments 2 and 3 and ahnost all of 4 

 thinly covered with whitish appressed pubescence; depressed apical 

 margins of segments dark reddish- Length about 6 mm. 



Ormsby Co., Nev.. duly. (Baker.) This is a Clilomlictvs 

 50.S0 Halictus albohirtus n. sji. 



Brassy green, very close to pruinosiformi.<i but differs in being more 

 shiny, the mesonotum not lineolated but shiny; nervures except 

 subcosta all light, base of metathorax with rugulae not reaching to 

 apex, the intervening space smooth and shiny, liroad apical margins of 

 abdominal segments whitish; the whole insect overed with snow white 

 pubescence (in pruinosiformis more griseous) subappressed on head and 

 thorax and appressed on abdon:en; legs dark, middle and hind tarsi 

 testaceous contrasting with tibiae; hind inner spur with about four 

 teeth. Length about 5% mm. 



Ormsby Co. Xev., July. (Baker) This is a Chloralictus- 



