12 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



vitta and a broad transverse prescutellar band of golden appressed 

 pile; otherwise yellow pilose except usually, but not always, a band 

 of black pile on each side of the median presutural vitta. Legs 

 yellowish; femora blackish; hind tibia dark brown to black on apical 

 third to fourth, at least externally. Wing yellow on about anterior 

 half, including entire discal cell and extending beyond apex of vein 

 R 5 ; posterior half brown; area devoid of micro trichia, limited, except 

 at base, to anterior margin of anal cell. Abdomen black basally; 

 tergum 2 largely pellucid yellow, only the broad lateral margins, 

 broader anteriorly than posteriorly, black, the pellucid area conse- 

 quently in the form of a trapezoid, this area sometimes darkened 

 medially but not divided into two spots, as in H. illucens; sternum 

 2 wholly pellucid yellow or with only the lateral margins black; 

 abdomen beyond second segment variable, largely or wholly black 

 or blackish in the female, usually largely or wholly reddish, at least 

 reddish on apical segments, in the male. Abdominal pile largely as 

 in H. chrysopila but the golden pile in general less conspicuous; also 

 terga 3 and 4, and to a lesser extent 5, with poorly defined sublateral 

 triangles of black pile; a narrow transverse band of black pile at base 

 of third tergum. Dististyle convex on its lower apical margin; from 

 lateral view, it is rounded apically. Length 9-12 mm. 



Holotype: cf , Globe, Ariz., Sept. 9, 1941, F. H. Parker; Melander 

 Collection; USNM type no. 69,016. Allotype: 9, Skeleton Canyon, 

 6 miles southeast of Apache, Cochise Co., Ariz., Sept. 1, 1958, P. D. 

 Hurd; University of California (California Insect Survey), Berkeley. 



Paratypes: Arizona: 2 cf cf, Globe, July 23, 1944, F. H. Parker, 

 3600', mesquite, cholla, Aug. 6-9, 1948, W. Nutting; 1 9, 3 miles east 

 of Portal, Cochise Co., Aug. 15, 1965, M. E. Erwin; 3 cf cf , 17 miles 

 east of Douglas, Cochise Co., Aug. 8, 1958, P. Opler, R. M. Bohart; 



1 cf, Leslie Canyon, Douglas, Aug. 16, 1931, Virginia Reed; 1 cf , 

 Cochise Stronghold, Sept. 6, 1960, L. A. Stange; 1 9, Molino Basin, 

 Pima Co., Aug. 30, 1951, C. D. MacNeill; 1 9, Madera Canyon, 

 Santa Cruz Co., 4800', Aug. 5, 1963, V. L. Vesterby; 4^^ Baboqui- 

 vari Mts., F. H. Snow, and July 19, 1950, L. D. Beamer, and July 18, 

 1950, J. Arnold; 1 cf , Brown's Canyon, Baboquivari Mts., Aug. 18, 

 1955, F. G. Werner, G. D. Butler; 4 cf cf, Santa Rita Mts., July 10, 

 1950, R. H. Beamer, and July 26, 1925; 1 cf, Santa Rita Ranger 

 Station, Pima Co., Aug. 8, 1957, C. W. O'Brien; 1 cf , Florida Canyon, 

 Santa Rita Range Refuge, Pima Co., July 20, 1959, G. A. Samuelson; 



2 cf cf , Safford, Sept. 6, 1955, R. W. Dawson; 3 cf cf , Sabino Canyon, 

 Santa Catalina Mts., Aug. 14, 1950, R. A. Beal, and Aug. 7, 1953, 

 G. D. Butler; 1 9, Santa Catalina Mts., Aug. 22, 1954, G. D. Butler; 

 1 cf , Cave Creek Ranch, Chiricahua Mts., 5000', Aug. 3, 1965, G. R. 

 Balmer; 2 99, Ramsey Canyon, Huachuca Mts., Sept. 6, 1956, F. G. 



