102 



U.S. NATIONAL MUSEUM BULLETIN 255 



Map 17. — Distribution of Agavenema barberella (black circles) and Agavenema pallida 



(black triangles). 



Discussion. — As discussed under the following species, the fore- 

 wings of 37 female specimens of A. barberella were measiued and 

 compared to those of A. pallida. The great majority (29) of these 

 37 specimens were reared from the flower stalks of Agave palmeri, 

 collected near Ray, Arizona; the remaining 8 females were collected 

 at lights in Madera Canyon, Santa Cruz Co., Ariz. The latter 

 moths ranged somewhat larger in size (6.8-9.4 mm) than did the 

 reared specimens (5.5-7.8 mm), but were very similar in regard to 

 all other characters examined. The mean difference in wing length 

 between the two populations was found to be significant (F=5.47*) 

 although not highly so. 



Because this degree of difference may be due, in part, to an in- 

 adequate sample, especially from Madera Canyon, and since these two 

 populations are essentially identical in aU other respects (including 

 valve-genitalia ratio), only one species has been recognized in the 

 material examined. 



Material examined. — 91 cf cf and 47 99. 



UNITED STATES: Arizona: Cochise Co.: Portal, 4 miles west of, Chirica- 

 hua Mts., 5300 ft., 5 d" c?, Aug. 3-6 (USNM). Southwestern Research Station, 

 Chiricahua Mts., 9, May 9 (UA). Pima Co.: Baboquivari Mts., ?, Sept. 

 1-15 (USNM). Pinal Co.: Ray, 9, holotype. Mar. 2; 43 c?" cf , 34 ? 9 , para- 

 types. Mar. 3-17 (USNM). Santa Cruz Co.: Madera Canyon, Santa Rita Mts., 

 4880 ft., 42 cf cf, 8 9 9 , July 2- Aug. 22 (CU, RWH). Bog Spring Camp Ground, 

 5100 ft., Madera Canyon, Santa Rita Mts., 9, July 22 (USNM). Patagonia, 1 

 mile south of, (f, July 29 (USNM). Peiia Blanca Canyon, 9 , Aug. 8 (CU). 



Agavenema pallida, new species 



Figures 80, 104, 130, 150; Map 17 

 Adult (fig. 80). — Wing expanse: male, 17-22 mm; female, 21-25 



mm. 



Head: White. Labial palpus largely brown above and white 

 below with a few brown hairs arising from apex of second segment. 



