388 Messrs. T. D. A. Cocktrell caicl \\. Portor on 



Bomhus sonoriis, Say, 1837. 



Prof. C. H. T. Townsend brought twenfy-eiglit specimens 

 from the Rio Euidoso, White Mts., N. M., taken from July 20 

 to Aug. 2, alt. 6500 to 6900 feet, at flowers of il/o??a?-(/a s^r/c^a 

 (many), Verlascum thapsns (many), Vicia near pulcheVa, 

 PrinielJa vulgaris, Mentzeh'a Rusht/i, and Bhus gkihra. 

 Mr. C. M. Barber collected the species in the same locality. 

 One specimen {Ckll. 4672) has been taken at Las Cruces, 

 Aug. 24, at flowers of Helianthus annuus. 



Handlirscli is certainly in error in regarding this species as 

 n variety of B. pennsylvanicus. It is interesting to note that 

 B. sonorus a])pears to be absent from the mountains of 

 northern New Mexico, while, on the other hand, B. Howardi 

 seems to be lacking in the White Mts. 



Bomlus americanorum , Fabr., 1775. 



Common in the Mesilla Valley, June, July, October, &c. 

 One at Las Vegas, July 14, at flowers of Cleome serrulata 

 [E. K. Rishel). 



Bumlvs Morrisonij Cresson, 1878. 



Common at Santa F^, Las Vegas, &c.,in July and August. 

 At Las Vegas it was taken on the flowers of Cleome semdata, 

 also on AscJepias. Romeroville, Aug. 6 [Porter ^ Ckll.) ; 

 Aztec ( C. E. Mead) ; Euidoso Creek, 0900-8200 feet, July 23- 

 Aug. 20, at flowers of Monarda stricta and Solidago triner- 

 vata [Townsend) ; South Fork, Eagle Creek, Aug. 19, 

 8300 feet, at Sicj/cs parviforus ; Las Cruces (6'. Steel, Ckll.) ; 

 Mesilla Park, May {J. D. Tinsley) ; Albuquerque [Ckll); 

 Gripping Spring, Organ Mts., April 23 (Ckll.) ; Mescalero 

 Agency, Aug. 22, 1897, at Salvia lanceolata [E. 0, Wootot\). 



The vertical range is irom 3800 to 8200 feet, but the insect 

 seems to be most abundant at 6500-7500 feet. 



Bomhiis nevadensisj Cresson, 1874. 



This species may be divided into two well-marked races, 

 perhaps species, as follows : — 



Eace Cresson i, Ckll. 



$ . — Abdomen with only the first three segments yellow, 

 segment 1 often black at base ; black thoracic patch usually 

 visible without a lens ; pleura with only a small patch of 

 yellow, just below teguh«. 



Length about 23 millim. 



