388 Messrs. T. D. A. Cockerell and W. Porter on 



Bomhus sonoruSj Say, 1837. 



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

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

 to Aug. 2, alt. 6500 to 6900 feet, at ^owex^oi Monarda stricta 

 (many), Verhascum thapsus (many), Vicia near pulchella, 

 Primella vulgaris, ]\leritzeJia Rusbyi, and Bhus glabra. 

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

 One specimen {Cldl. 4072) has been taken at Las Cruces, 

 Aug. 24, at flowers of Helianthus annuus. 



Handlirsch is certainly in error in regarding this species as 

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

 B. sono7'Us 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. 



Bomhus americanorum, Fabr., 1775. 



Common in the Mesilla Yalley, June, July, October^ &c. 

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

 {E. K. Rishel). 



Bomhus Morri'som, Cresson, 1878. 



Common at Santa Y6, Las Vegas, &c.,in July and August. 

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

 also on Akclepias. Romeroville, Aug. 6 {Porter 6f Ckll.) ; 

 Aztec (0. E. Mead) ; Ruidoso Creek, 6900-8200 feet, July 23- 

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

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

 8300 feet, at Sicyos parvijlorus ; Las Cruces {S. Steel, Ckll.) ; 

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

 Lripping Spring, Organ Mts., April 23 {Ckll.) ; Mescalero 

 Agency, Aug. 22^ 1897, at Salvia lanceolata {E. 0. Wooton). 



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

 seems to be most abundant at 6500-7500 feet. 



Bomhus nevadensis, Cresson, 1874. 



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

 perhaps species, as follows : — 



Race Cressoni, 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 tegulte. 

 Length about 23 millim. 



