246 BULLETIN 143, UNITED STATES NATIONAL MUSEUM 



erect, yellow pubescence like that of the dorsum of the thorax, 

 remainder of propodeiim ^Yith long, erect, black pubescence; scutellar 

 scale present and prominent. 



Abdomen black; first segment short, subsessile; first tergite with 

 scattered, shallow, indistinct punctures on the disk, small, close, con- 

 fluent punctures on the apical margin, sparsely clothed with long, 

 erect, black pubescence; second tergite with shallow, more or less 

 confluent punctures throughout, those on the lateral portions larger, 

 and somewhat elongate; very broad lateral margins and apical 

 margin clothed with long, erect, black pubescence, the apical fringe 

 also of long, black pubescence, the remainder of the tergite clothed 

 with long, erect and recumbent, yellow pubescence ; tergites 3-5 with 

 small, more or less confluent, indistinct punctures, densely clothed 

 with long, erect, black pubescence ; pygidial area irregularly rugose ; 

 first sternite with a short median keel anteriorly; second sternite 

 with rather close, shallow, elongate punctures throughout, the apical 

 margin somewhat depressed; sternites 3-5 closely, confluently punc- 

 tate; sternites 2-5 sparsely clothed with long, erect, black pubescence, 

 and each with a dense apical fringe of black pubescence. 



Legs black, clothed with long, black pubescence. 



Holotijpe.— Male, Trout Creek, Juab County, Utah, July 4, 1922 

 (Tom Spalding), in collection of University of Minnesota. 



Allofrjpe.— Female, Trout Creek, Juab County, Utah, July 4, 1922 

 (Tom Spalding), in collection of University of Minnesota. 



Paratr/pes.— Six males, 3 females, Trout Creek, Juab County, Utah, 

 July 4, 1922 (Tom Spalding) ; male. Trout Creek, Juab County, Utah, 

 July 9, 1922 (Tom Spalding) ; 2 females. Trout Creek, Juab County, 

 Utah, July 11, 1922 (Tom Spalding) ; female, Trout Creek, Ibapah 

 Mountains, August 4, 1922 (Tom Spalding) ; female. Trout Creek, 

 Ibapah Mountains, August 11, 1922 (Tom Spalding) ; 2 males. Wild- 

 cat Valley, Beaver County, Utah; female. South Creek, Beaver 

 County, Utah; female, Sevier County, Utah. Paratypes in collec- 

 tions of University of Minnesota, J. Bequaert, and the author. 



This species is at once recognizable by the beautiful yellow pubes- 

 cence and the black apical segments of the abdomen. The males and 

 females are almost identical in superficial appearance, disregarding 

 of course the absence of wings in the female. The males vary in 

 length from 10.5 to IG mm., while the females vary from 8 to IT mm. 



102. DASYMUTILLA SICHELIANA (Saussure) 



MtitilJa sichciiana Saussure, Ann. Soc. Ent. France, ser. 4, vol. 7, p. 3G0, 

 1867, female. — Blake, Trans. Amer. Ent. Soc, vol. 3, p. 257, 1871, fe- 

 male.— Dalle Torre, Cat. Hymen., vol. 8. p. 85, 1897, female.— Fox, Trans. 

 Amer. Ent. Soc., vol. 25. p. 238, 1899, female. 



