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U. S. NATIONAL MUSEUM BULLETIN 209 



This is a common species of the Austroriparian and Carolinian 

 faunas. There is an isolated record from New Mexico (2cf, Magda- 

 lena Mts., N. Mex., July 1894, F. H. Snow (Lawrence)). Adults are 

 on the wing mostly in July and August. 



6. Priocnemioides angusticeps, new species 



Plate 2, figure 17 



Forewing of male 11 to 15 mm. long, of female 14 to 18 mm. long; 

 temple rather sloping, the head somewhat narrower across the temples 

 than across the eyes; pronotum of male a little longer than in P.jul- 

 vicornis or P. unvfasciatus ; suberect hair on upper part of pronotum 

 moderately long; propodeum with rather fine transverse wrinkling, 

 most distinct in the female; subgenital plate of male with a low, weak, 

 median longitudinal ridge that tapers from the base. 



Figure 27. — Localities for Priocnemioides angusticeps. 



Black. Flagellum orange; wings orange, infuscate basally and 

 apically. In the forewing the basal infuscate area extends about 

 0.4 the distance to the basal vein and the apical infuscation just reaches 

 or invades the apex of the radial cell. 



This species is superficially similar to P. unifasciatus cressoni but 

 may be distinguished by the tapering shape of the median longitudinal 

 raised area on the male subgenital plate, the narrower temple, and the 

 broader apical infuscation on the forewing. 



Type: cJ', Brownsville, Tex., May (Washington, USNM 61697). 



Paratypes (37 cf, 389): From Texas (Bexar County, Boca Chica, 

 Brownsville, Burnet, Camp Barkley in Taylor County, Dallas, Edin- 

 burgh, Fedor, Liberty Hill, Maxwell, New Braunfels, Palmetto Park 

 at Gonzales, Port Isabel, Victoria, and Williamson County); and 

 Mexico (Ahuacatldn in Nayarit, Alpuyeca in Morelos, Guadalajara, 



