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U. S. NATIONAL MUSEUM BULLETIN 209 



Figure 20. — Localities for Priocnemioides aratus. 



across the eyes; propodeum and upper part of metapleuron with sharp 

 transverse wrinkles, the wrinkles sharpest in the female; erect hairs on 

 head and thorax longer and more conspicuous than in the other species 

 of the magnus group ; nipples on posterior part of apical margin of fore 

 coxa a little stronger than in the other species of the magnus group; 

 legs more slender and with longer bristles than in other species of the 

 magnus group, the hind femur about 5.4 as long as wide; hind tibia of 

 male subcarinate dorsally, without distinct teeth; hind tibia of female 

 with a dorsal row of strong, rather narrow teeth that are about 0.8 as 

 wide as the length of the bristles beneath each; sixth sternite of male 

 basally and laterally with long erect black hairs, discally with sparser, 

 shorter, less conspicuous erect hairs; subgenital plate of male with 

 marginal irregular long hairs, discally with moderately long hairs 

 which in this species are mostly reflexed. 



Black. Wings orange, their apices and extreme bases rather 

 abruptly infuscate; head and thorax with an iridescence that is 

 usually greenish blue, especially strong in the female. 



Type: 9, Douglas, Ariz., Oct. 5, 1927, W. W. Jones (Berkeley). 



Paratypes: 15 c?", 19 9 from Arizona (Apache, Douglas, 10 miles 

 east of Sonoita, and Tucson); Idaho (Pocatello); Kansas (Finney 

 County and Meade County); New Mexico (Tucumcari); Texas 

 (Alpme, The Basin at 5,000 ft. in the Chisos Mts. of Big Bend Na- 

 tional Park, Fort Davis, Fort Stockton, Limpia Canyon at 5,000 ft. 

 in the Davis Mts., Marathon, and Marfa) ; Utah (Logan, Provo, and 

 Salt Lake County); and Mexico (Canutillo in Durango). 



Most dates of collection are from July to September. The extreme 

 range is from May 30 (in Salt Lake County, Utah) to Oct. 5 (at 

 Douglas, Ariz.). 



