Bees from New Mexico. 415 



differs as follows : — Size smaller ; head and thorax bare, with 

 practically no pubescence ; no supraclypeal mark ; eyes en- 

 tirely surrounded by a narrow band of yellow ; scape ferru- 

 ginous in front (instead of yellow) ; antenna shorter, unusually 

 short for a male ; second joint of flagellum barely, if any, 

 longer than the third ; scutelluni much less bilobate, it and 

 the postscutellum yellow; sides of metathorax with a dull 

 ferruginous mark ; pleura with a very large yellow patch 

 in front ; behind this and beneath the wings a red spot, 

 surrounded by black ; lower part of pleura ferruginous ; wings 

 suffused with brownish along the nervures, which are very 

 dark brown ; stigma dark ferruginous ; second submarginal 

 cell scarcely narrowed above ; legs with more ferruginous ; 

 hind coxai mostly ferruginous within and yellow without ; 

 abdomen with the whole of the first segment and the anterior 

 margin of the second ferruginous ; abdomen distinctli) and 

 very closely 'punctured'^ fifth and sixth segments without any 

 apical black band ; venter yellow, ferruginous at base, the 

 hind margins of the segments narrowly testaceous. Tegulce 

 yellow, as in superba. 



Hah. Las Vegas, Aug. 11, 1899, at flowers of Solidago 

 canadensis J 1 ^ {Wilmatte Porter). 



Halictus aquilce, Ckll., 1898. 



^ . — About 9 millim. long. 



Very narrow, especially tlie abdomen ; dark olive-green, 

 closely punctured ; anterior margin of clypeus broadly, and 

 mandibles except base and apex, lemon-yellow ; legs, ventral 

 surface, and sides of abdomen orange-ferruginous ; on the 

 first three abdominal segments the ferruginous sends flame- 

 like projections into the green ; the third segment has a dark 

 spot at each extreme side ; pubescence of vertex and thoracic 

 dorsum ochraceous, of underparts dull white ; antennai long, 

 reaching to base of abdomen, entirely black ; wings strongly 

 infuscated, nervures and stigma piceous. A very beautiful 

 insect. 



Hab. Beulah, July 26^ at flowers of Ranunculus^ Aster, 

 &c., 7 ? {W. Porter) ; the first males were taken at Harvey's 

 Ranch, 9600 feet, Aug. 22, 1899 {Porter & Ckll); on 

 Aug. 28 Miss Purter took males at Beulah. The sexes were 

 taken together, and there is no doubt that they belong. Pre- 

 viously known only by the unique type. 



