120 BULLETIN 143, UNITED STATES NATIONAL MUSEUM 



tergite densely, deeply, somewhat confluently punctate; second ter- 

 gite with distinct, deep, elongate, moderate punctures; tergites 3-6 

 with small, distinct punctures, the punctures on tergite 3 larger than 

 those on G; last tergite with an apical fringe of short, erect, black 

 hairs ; first sternite coarsely, densely punctate, with a sharp, median, 

 longitudinal carina; second sternite with sparse, distinct punctures, 

 without a median pit filled with hairs, or a row of hairs simulating 

 a carina; sternites 3-6 with small punctures at their apical margins; 

 last sternite with small, close jDunctures, except the apical fifth 

 glabrous, impunctate. 



Legs black, clothed with sparse, silvery gray pubescence; calcaria 

 black. 



Wings dark fuliginous; call 2nd Ri + R., broadly truncate at the 

 apex ; cell R^ obsolete ; vein M3+4 received by cell E.5 about one-fourth 

 the distance from the base to the apex; veins r-m and Kg widely 

 separated on vein r. 



Holotijpe. — Male, Nicola, British Columbia, August 3, 1923 (E. R. 

 Buckell), in Canadian National collection, Ottawa, Canada. 



This species is very close to the male of vesta and may prove to 

 be only a variety of that species. It can be easily distinguished from 

 vesta by the silvery gray pubescence of the head, thorax, and legs. 



Group ZELAYA 



Females with mandibles bidentate; thorax subhexagonal, either 

 as broad as long, or slightly longer than broad ; scutellar scale either 

 present or absent; pygidial area irregularly rugose. Males with 

 the cephalic margin of the pronotum emarginate medially, second 

 sternite without a median pit filled with hairs or a row of hairs 

 simulating a carina ; last abdominal tergite without an apical fringe 

 of hairs. 



33. DASYMUTILLA ZELAYA (Blake) 



Plate 1, fig. 9 



Mutilla (Sphaerophthalma) zelaya Blake, Trans. Amer. Ent. Soc, vol. 3, 



p. 234, 1871, male. 

 Sphaerophthalma zelaya Blake, Trans. Amer. Ent. Soc, vol. 13, p. 211, 



1886, male. 

 Mutilla zelaya Dalle Torre, Cat. Hymen., vol. 8, p. 99, 1897, male. — Fox, 



Trans. Amer. Ent. Soc, vol. 25, p. 244, 1899, female, male. — Melander, 



Trans. Amer. Ent. Soc, vol. 29, p. 302, 1903, female, male. 

 Ephuta (Ephuta) zelaya Andre, Gen. Ins., vol. 1. fasc 11, p. 65, 1903, male. 



Type. — Male, Texas, in collection of American Entomological 

 Society of Philadelphia. 



Plesiotype. — Male, Eastland County, Texas, August 25, 1920 (Grace 

 Olive Wiley), in entomological collection of University of Minnesota. 



Distribution. — Texas, New Mexico and Arizona. 



