Records of Bees. 483 



tlie arrangement of the hair on tliorax it is like M. seiniagilis 

 (Civil.), but that is a considerably smaller species, and the 

 male is quite different. It is also close to M. nigrosignata, 

 Ckll., but the facial quadrangle is broader and shorter, the 

 hairless area on apical part of second abdominal segment is 

 much less, and the abdomen beneath lacks the conspicuous 

 black hair, contrasting with the pale at sides. The male 

 robustior, in the same tables, runs to M. gilensis, but differs 

 by the broad lemon-yellow clypeus, the yellow nearly reaching 

 the eye ; also by the yellow spot on labrum and less elevated 

 vertex. It is easily known from M. grindelice by the light 

 hair on tegulae, very small amount of dark hair on meso- 

 thorax, &c. It is also close to M. helianthophila, Ckll., but 

 differs by the ochraceous pubescence, dusky wings, darker 

 antennas, with the third joint twice as long, &c. 



Bombus edwardsii, var. henoyeri, var. n. 



$ . — Like var. bifarius (Cresson), but the red colour of 

 abdomen replaced by pale tawny, so that all the light abdo- 

 minal hair is of the same colour. The second abdominal 

 segment has a broad triangle of black hair at base. 



Hab. Tolland, Colorado ; at flowers of Fraserastenosepala, 

 July (L. A. Kenoyer). Also on Frasera stenosepala, at 

 Tolland, Mr. Kenoyer took B. edwardsii bifarius (Cr.), 

 B. rufocinctus astragali (Ckll.), Psithyrus insulans (Sm.), 

 Colletes kincaidii, Ckll., Chelynia nitida (Cr.), Monumetha 

 albifrons (Kirby), and Megachile wootoni calogaster (Ckll.) . 

 Bombus kirbyellus, Curtis, was taken by Mr. Kenoyer on 

 Nebraska Hill, Colo., above timber-line, July, at flowers of 

 Polemonium confertum and Trifolium. At Corona, Colorado, 

 above timber-line, he took Bombus appositus, Cr., at flowers 

 of Trifolium dasycarpum, and B. flavifrons at Mertensia 

 bakeri. B. flavifrons was also taken on Nebraska Hill at 

 Trifolium dasycarpum. 



Osmia henoyeri^ sp. n. 



$ (type). — Length nearly 11 mm. 



Dark green, the head and thorax rather bluish green, the 

 abdomen clear olive-green, the margins of segments con- 

 colorous ; antennas long, black, the middle joints of flagellam 

 conspicuously swollen beneath ; tegulse piceous, green in 

 front ; legs black, without metallic tints ; hair of head, 

 thorax, first abdominal segment, and greater part of legs long 

 and white, of second abdominal segment also white, but 

 shorter, of segments 3 to 5 black, of sixth mixed black and 



34* 



