ART. 6 HAL.ICTINE BEES FROM SIBERIA COCKERELL 7 



falls near H. aberrans Crawford. The long antennae recall H. 

 t'ufocinctus Sichel. 



Named after J. K. Shiskin, the accomplished botanist of 

 Vladivostok. 



HALICTUS EMELIANOFFI. new species 



Male. — Length about 8 mm., anterior wing 6 mm.; black, with 

 white hair, tinged with yellow on head and thorax above; face 

 broad; clypeus with a broad transverse apical white band; labrum 

 brown ; mandibles black, ferruginous subapically ; antennae reach- 

 ing about to scutellum; flagellum ferruginous beneath; mesothorax 

 and scutellum shining but quite closely punctured; area of meta- 

 thorax large, with closely set longitudinal rugae, but a transverse 

 polished smooth band apically; posterior truncation distinctly de- 

 fined, shining, without strong sculpture, but rugose at sides; tuber- 

 cles entirely black; tegulae large, pale rufotestaceous, piceous at 

 base; wings hyaline, faintly grayish; stigma large, deep rufofus- 

 cous; nervures fuscous; basal nervure quite distant from nervulus; 

 second cubital cell narrow, receiving recurrent nervure before the 

 end; third cubital not twice as broad as second; outer nervures 

 hardly weakened; anterior tibiae in front very pale reddish; middle 

 and hind basitarsi yellowish white; small joints of tarsi dusky; all 

 the tibiae reddish at extreme base and apex; spurs white; abdomen 

 narrow, shining, finely punctured; dull white bands of tomentum, 

 failing in middle, at bases of segments 2 to 4; tip of abdomen 

 rufous; no subapical ventral tuft of red hair. 



Okeanskaja, Siberia, August 18, 1 male (Cockerell). 



Type.— C^t. No. 27343, U.S.N.M. 



This insect is rather suggestive of H. lasvis Kirby, but the color 

 of the tegulae and wings and the details of sculpture are conspicu- 

 ously different, so that there is perhaps little real affinity. The 

 hind margins of the abdominal segments are obscurely brownish, 

 but not reddish as in H. laevis. In Crawford's table of American 

 species it runs to H. arcuatus Robertson, but is not allied. 



Named after Alexander Adrianovich Emeljanoff, of Vladivostok, 

 keen student of the herpetology of the Maritime Province. 



The following table separates a series of black male Halictus col- 

 lected in the Maritime Province : 



Basitarsi black 1 



Basitarsi pale 3 



1. Nervures fuscous; second cubital cell nearly as broad as third. 



wittenbourgi, new species. 

 Nervures testaceous; second cubital cell very narrow 2 



2. Mesothorax closely punctured (Kongaus) alinensis Cockerell. 



Mesothorax sparsely punctured on disk, polished lutzenkoi, new species. 



3. Antennae very long; face nsirrower sliishkini, new species. 



Antennae moderate; face broader emelianoffl, new species. 



