Robertson — North American Bees. 331 



slender, shining, minutely roughened and almost impunctate, 

 segments 2-5 with margins pale testaceous, barely fringed. 

 Length 6 mm. 



Carlinville, Illinois; 18 $, 6 $ specimens; U. S., Nova 

 Scotia (Smith), Cap Rouge (Prov.), New York (Lintner). 



Andrena lauracea o_. 



Black, clothed with thin ochraceous pubescence, paler 

 beneath; head as wide as thorax, striate before ocelli, cly- 

 peus somewhat shining, minutely roughened, with, sparse, 

 rather large shallow punctures; basal process of labrum 

 small, emarginate ; mandibles except base rufous; antennae 

 dull ferruginous at apex beneath, third joint nearly as long 

 as fourth and fifth together; mesonotum with rather sparse 

 shallow punctures, the disc and scutellum more shining; 

 inclosure of metathorax bordered by an impressed line, more 

 rugous centrally and at base, but not strongly so ; wings 

 hyaline, nervures and stigma testaceous, tegulae more dull; 

 second submarginal cell less than half as long as third, 

 receiving recurrent near tip ; legs blackish at base, dull ferru- 

 ginous towards tips, scopa ochraceous, floccus paler ; abdo- 

 men shining, especially towards base, minutely roughened, 

 sparsely, but quite evenly punctured, the punctures less deep 

 and distinct towards apex, apical margins slightly depressed, 

 2-4 with narrow fasciae, interrupted on second, anal fimbria 

 ochraceous, pygidium rufous. Length 8 mm. 



Carlinville, Illinois; one $ specimen. 



Andrena nothoscordi 2 • 



Black, clothed with very thin pale pubescence; head 

 broader than thorax, cheeks rounded, rather strongly pro- 

 duced behind eyes, front before ocelli finely striate; clypeus 

 opaque, minutely roughened, with sparse shallow punctures; 

 basal process of labrum short, truncate or rounded; mandibles 

 except base rufous; antennae short, third joint as long as 

 fourth and fifth together, sixth and following joints ferrugi- 

 nous beneath ; mesonotum impunctate, with thin pubescence, 

 shining posteriorly, scutellum somewhat shining; inclosure 

 of methathorax bounded by impressed line, finely roughened; 



