76 BULLETIN 190, UNITED STATES NATIONAL MUSEUM 



ington. From roots collected at Sawmill Flat, Mount Rainier National 

 Park, 3,000 feet, July 4, 1933, the moths emerged from July 25 to August 

 25, six or more from large roots (Engelhardt and J, Wilcox). From 

 roots collected at Kamiack Butte, Whitman County, late in the season and 

 winter, the moths emerged during April and May 1935 (J. F. Gates 

 Clarke). 



The males of these series differ in the extent of the white shadings over 

 the otherwise vitreous areas of the forewings, and the females vary in the 

 amount of dark suffusions on both wings, which in extreme cases become 

 entirely opaque. This is the form of Hy. Edwards's female types from 

 Colorado, also illustrated in Beutenmiiller's "Monograph of the North 

 American Sesiidae." Sesia nigra Beutenmiiller is considered another 

 extreme form of verecunda. The unique female type from Colorado differs 

 from the female type of verecunda only by lacking the whitish suffusions 

 on the fore and hind wings. Both wings of nigra are opaque, brownish 

 black. Again final conclusions must be withheld, pending the acquisition 

 of adequate material. 



An unusual problem in taxonomy is presented in the aberrant venation 

 of the series of reared specimens from Washington. Veins 10 and 11 are 

 present, confluent at tip, or coincident. This is upsetting in a key to a 

 classification largely based on venation. All specimens of the series dis- 

 sected agree perfectly in structures of the genitalia. 



Individual records provisionally assigned to verecunda are: One male, 

 Sioux County, Nev., July 16, 1917 (R. A. Leussler) ; one male. La Junta, 

 Colo. (Oslar) ; one female, Chimney Gulch, Golden, Colo., June (Oslar) ; 

 one male, Plainview, Jefferson County, Colo., July 10, 1927 (E. L. Bell). 



Sesia florissantclla Cockerell, known only by the male type, is apparently 

 a dwarfed specimen of verecunda, with which it conforms in all respects 

 except size. 



The American Museum of Natural History collection contains the fol- 

 lowing determined as verecunda: One female, Meeker, Colo., 6,200 feet ; 

 one female, Easton, Wash. ; one male. Fort Douglas, Utah, June 26, 1904 

 (Wickham) ; Medicine Bow, Wyo., 6,000 feet, June 23, 1920. 



CARMENTA PROSOPIS (Hy. Edwards) 



Plate 5, Figures 33, 33a; Plate 13, Figure 63 



Aegeria prosopis Hy. Edwards, Papilio, vol. 2, p. 99, 1882; Ent. Amer., vol. 3, 

 p. 224, 1888.— Beutenmuller, Bull. Amer. Mus. Nat. Hist., vol. 4, p. 172, 1892. 



Aegeria candescens Hy. Edwards, Papilio, vol. 2, p. 123, 1882. 



Sesia prosopis Smith, List of Lepidoptera of Boreal America, p. 21, No. 833, 

 1891.— Beutenmuller, Bull. Amer. Mus. Nat. Hist., vol. 8, p. 142, 1896 ; vol. 9, 

 p. 220, 1897 ; Mem. Amer. Mus. Nat. Hist., vol. 1, pt. 6, p. 302, pi. 31, fig. 6, 

 male, 1901. 



Sesia candescens Beutenmuller, Mem. Amer. Mus. Nat. Hist., vol. 1, pt. 6, p. 303, 

 pi. 31, fig. 12, female, 1901. 



