244 U. S. NATIONAL MUSEUM BULLETIN 2 09 



Paratypes (13 cT, 209): From Alberta (Brooks, Calgary, Coal- 

 dale, Gleichen, Medicine Hat, and Waterton Lakes) ; Manitoba 

 (Winnipeg) ; Massachusetts (Forest Hills) ; Michigan (Norvell) ; 

 Minnesota (Rush City, Fridley Sand Dunes in Anoka County, Hal- 

 lock, Hendricks, St. Paul, and Traverse Count}^) ; Montana (St. 

 Marys) ; New York (Niagara Falls) ; North Dakota (Beach, Bismark, 

 Bottineau, and Fargo) ; Saskatchewan (Boucher) ; and South Dakota 

 (Brookings and Wasta) . 



Collection dates are rather evenly distributed from May 29 to Sept. 3. 



This subspecies or regional variety is the dominant form of Ceropales 

 maculata from southern Alberta to the Dakotas, and is found as 

 occasional individuals in an otherwise typical population of Ceropales 

 macula jraterna in the Great Lakes region and as far east as Boston, 

 Mass. 



Idi Ceropales maculata fratema Smith 



Plate 1, figure 14 



Ceropales Jraterna Smith, 1855. Catalogue of the hymenopterous insects in the 



. . . British Museum, vol. 3, p. 180, ? . Type: ? , North America (Oxford). 

 Ceropales minima Provancher, 1889, Additions et corrections au volume II de la 



faune entomologique du Canada traitent des Hym^nopteres, p. 265, cf. 



Type: cf, Hull, Quebec (Quebec). 

 Ceropales fraternus occidentalis Cockerell, 1898, Ann. Mag. Nat. Hist., ser. 7, 



vol. 2, p. 455, cf . Type: cf , Ruidoso, White Mts., at about 6500 ft., N. 



Mex. (Washington). 

 Biology: Peckham, 1898, Wisconsin Geol. Nat. Hist. Surv. Bull. 2, pp. 154-155, 



239. 



Black. Face, clypeus, labrum, tubercle between antennal sockets, 

 lower lateral part of frons, short and ver}'^ narrow postorbital line, 

 spot on scape, small spot on pedicel, spot on front callus of pronotum, 

 hind margin of pronotum, postscuteUum, sometimes a spot on the 

 scutellum, large spot above base of hind coxa, sometimes a small 

 spot above base of middle coxa, underside of front coxa, outer apex of 

 middle coxa, apical outer stripe and outer apex of hind coxa, apical 

 spot or area on back of front femur and front of middle and hind 

 femora, upper part of front tibia, spot on base and apex of middle 

 tibia, spot at base of hind tibia, front and middle basitarsi, large 

 lateral spot (in cf) or wide subapical band (in 9) on first tergite, 

 apical band on second to third tergites, large medioapical areas on 

 fifth and sixth tergites, and (in cT) an apicolateral spot on seventh 

 tergite, yellow or creamy white (most frequently creamy white in 

 specimens from the Northeast), In the female a median stripe on 

 the face, clypeus, and often on the labrum is black. Ground color 

 of legs grading from black basally to fulvous apically, the hind femur 

 blackish to light brown with the apex usually paler than the base 

 (also with a yellowish spot on the apex). 



