678 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ii4 



sclerotized, acute, directed apicad (thus, toward base of aedeagus), 

 extending to or beyond apex of vesica. 



Type.' — Holotype cf and allotype 9 (type no. 61450) in the U.S. 

 National Museum. 



Paratypes (17 cf cf , 1 9).- — American Museum of Natural History 

 (6 cf cf ) ; California Academy of Sciences (4 cf cf ) ; Carnegie Museum 

 (1 cf); U.S. National Museum (5 cf cf, 1 9); University of Kansas 

 (1 cf ). 



Type locality. — "Southern Arizona" (exact locaUty, date, and 

 collector not available). 



Distribution. — Southwestern United States. Arizona and (?) 

 New Mexico. 



Specimens examined. — 50 (19 cf cf, 31 99), from 12 locaUties (1 

 cf without data): 



Arizona: "Babaquivera" Mountains, Pima Co., 9 (date and collector unknown) ; 

 Baboquivari Mountains, Pima Co., 4 cf cf (July 15-30, 1923, elevation 5000 to 

 7000 feet, O. C. Poling), d" (Sept. 1-15, 1923, Poling); Paradise, Cochise Co., 

 d' (June, O. C. Poling); Pinal Co., "3 miles west of Magna," cf (Aug. 18, 1924, 

 E. P. Van Duzee) ; San Bernardino Ranch, Douglas, Cochise Co., cf (Aug., 

 elevation 3750 feet, F. H. Snow); "Southern Arizona," cf, 9 (date and collector 

 unknown) ; Superior, Pinal Co., 6 cf cf (Boyce Thompson Arboretum, Aug. 1-2, 

 1937, A. B. Klots); Tucson, Pima Co., 3 cf cf (St. Xavier National Monument, 

 Aug. 12, 1924, J. O. Martin). 



The following series of 29 99 has been tentatively associated with 

 macrophallus. I had originally placed them with the 99 of the allied 

 species, variabilis, which they closely resemble. In addition, the data 

 labels are identical for numerous 99 of both species. However, the 99 

 listed below differ somewhat from those of variabilis and they seem 

 more likely to belong to macrophallus, despite the fact that none of the 

 data labels are identical between the two sexes in the resulting series 

 representing macrophallus. The 99 far outnumber the cf cf, an un- 

 usual situation among acrolophids. For these reasons the association 

 is rather questionable and the 29 99 are not to be considered paratypes. 

 The sources of these specimens are: American Museum of Natural 

 History (7 99); California Academy of Sciences (14 99); Carnegie 

 Museum (3 99); Cornell University (1 9); New Mexico College of 

 Agriculture and Mechanic Arts (1 9); University of Kansas (3 99). 



Arizona: Baboquivari Mountains, 4 99 (no date, one specimen with mite on 

 abdomen, F. H. Snow); Huachuca Mountains, 9 (Ramsay Canyon, July 10-15, 

 1941, A. B. Klots); Oracle, Pinal Co., 4 99 (July 28, 1924, J. O. Martin), 9 99 

 ("14 miles east of Oracle," July 24 and 27, 1924, one specimen with mite on abdomen, 

 E. P. Van Duzee and J. O. Martin); Palmerlee, Cochise Co., 9 (date and col- 

 lector unknown); Pinal Co., "6 miles south of Florence," 9 (July 23, 1924, 

 E. P. Van Duzee); San Bernardino Ranch, Cochise Co., 9 (Aug., elevation 3750 

 feet, F. H. Snow); Tucson, 2 99 (July 30, 1937, A. B. Klots), 9 (Oct. 8-10, 

 1939, Crandall), 4 99 (July 13-14 and 30, 1943, Fred H. Rindge collection). 

 New Mexico: State College, Dona Ana Co., 9 (July 8, 1945). 



