the New Mexico Bees of the Genus Bombus. 389 



Specimens from Washington State and Colorado, sent by 

 Mr. Fox as nevadensis. In New ^Mexico, especially at high 

 alfifudes. White Mts., at about 10,300 feet, at flowers of 

 l)eljihiniuvi scopulorum, several [Tuicnsend) ; South Fork, 

 Eagle Cieek, Aug. 19, about 8300 feet, at flowers of Sicyos 

 parviflorus, two {Townsend) ; North Fork, Ruidoso Creek, 

 Aug. 20, alt. 8200 feet, at flowers of SoUdigo trinervata, 

 two {Townsend) \ Mescalero Agency [Otis); Las Vegas, 

 July, two, one at Cleome serrulata [Porter & CIcU.). 



Race aztecus, Ckll. 



$ . — Abdomen with the first four segments yellow, seg- 

 ment 1 yellow at base ; black hairs in middle of thorax not 

 visible without a lens; pleura with the anterior half at least 

 yellow. 



Usually at loAvei altitudes than Cressoni, 



Length about 20 miUim. 



Aztec, one [C. E. Mead) ] Las Vegas, one (TF. Porter); 

 Beulah, May 30, at Verbena h'pinnatijida, one ( IT^. Porter) ; 

 Mescalero Agency, July 12, one {C. M. Barbei-) ; half a 

 mile below forks of Ruidoso Creek, Aug. 28, one [Barber) ; 

 Rio Ruidoso, July 23-27, 6700-6900 feet, three at flowers of 

 Monarda stricfa, one at Lupinus Sitgreavesii, one at Verbas- 

 cum thapsus [C. H. T. Toionsend). 



Bombus improbuSj Cresson, 1878. 



Five [S) from South Fork, Eagle Creek, White Mts., 

 N. M., Aug. 20, about 8200 ieet, flying swiftly lo and fro 

 [Townsend), This is with little doubt the male of nevadensis. 

 One specimen was taken by Prof. Townsend on flowers of 

 ISenecio Piusbyi. 



Bombus Howardiy Cresson, 1863. 



Beulah, May 30, Aug. 16 (TF. Porter) ; Harvey's Ranch, 

 9600 feet, Aug. 22, lb99 (IF. Porter) ; Monument Rock, 

 Santa F^ Canon, at Monarda and Rudbeckia {Ckll.) . Rather 

 common. 



Bombus ajpositus, Cresson, 1878. 



Beulah, Aug. 16, at Polemonium cceruJeuni [W.Porter); 

 Harvey's Ranch, 9600 feet, Aug. 22 [Porter & Ckll.) ; Monu- 

 ment Rock, Sta. F^ Canon, a.tMoJiarda [Ckll.) ; North Fork, 

 Ruidoso Creek, 8200 feet, Aug. 12, at Delphinium scopu- 

 lorum [Toxcnscnd). The species is rather common at Beuhih, 



