(So Myron Harmon Szuenk 



oxccpi tor yellow spots on the eiiclosuro and sides of propodeuin 



in some specimens clroJi 



5. Mesoscntnm and mesoplenra red; vertex largely red; propodenni 

 with extensive red edgings to the yellow spots on the propo- 

 deum. the red areas sometimes sutYnsing the yellow spots and 

 involving most of the pi^sterior face of the propodeum except 

 the median line elrodi var. 



Nomada (Heminomada) obliterata Cresson. 



?iS54. .V(>f/M(/i! {'uhhclUx Smith, Cat. Hym. Insects British Museum, II, 



p. 247, d". 

 iS6^. Xomado obliterata Cresson. Proc. Ent. Soc. Phii, II, pp. 301-02, 



?. 

 1870. .V(>m(i(/(i bisi}:nata var. obliterata Cresson. Trans. Am. Hnt. Soc., 



VII, p. 217. 

 1S87. Xomaiia bisigtiata var. obliterata Cresson, ibid., p. 297. 

 1807. Xomada riburni Robertson, Trans. Acad. Sci. St. Louis. VII, 



p. 341. c?- 

 iSo^ Xomada obliterata Robertson, ibid., p. 51. $ d". 

 1903. Heminomada oMiterata Robertson. Can. Ent.. XXXV, p. 177, 



ux>3. Xomada (Heminomada) obliterata Cockerel!, Proc. Acad. Xat. 



Sci. Phil., p. 502. 

 ux>5. .Vi>Hi(i(/rt obliterata Cockerell, Bull. 04, Colorado Exp. Sta.. p. 71. 



In 1837 Say described Xotnada X'incta trout Indiana, basing the 

 name priniarily upon the female sex, which was described first. 

 The male described by Say as belonging to x'incta $ was not that 

 species, as was subsequently pointed out by both Cresson and 

 Robertson, but probably was. as stated by Cresson. a small and 

 slender female of -V. Iiiteola Olivier. However, at the present 

 time the true male of rincta is ver}- Avell known, having been 

 correctly mated and well diagnosed by Robertson from Illinois 

 specimen^: the species is. in fact, one of otir commonest autumnal 

 species of Xomada. ranging from Xow Jersey, Indiana and 

 Illinois west to Kansas. Nebraska. North Dakota and eastern 

 Colorado. In 1854 Frederick Smith described Xomada ("iilcheUa 

 from " North America." the male sex only being described. In 

 1863 Cresson placed -V. f>uh'hcUa as a synonym of his determina- 

 tion of .V. vincta. the male only of which was really :incta {fide 

 Robertson the $ was -V. affabilis $), and this disposition of 

 f*ulchcUa apparently was not seriously questioned for the name 



60 



