156 PROC. ENT. SOC. WASH., VOL. 23, NO. 7, OCTOBER, 1921 



9. Anomalon ejuncidus Say. 



Anomalon ejuncidus Say, Boston Journ. Nat. Hist., vol. 1, 1835, p. 241 (Leconte 



ed., vol. 2, p. 697). 



Trachynotus texanus Cresson, Trans. Am. Ent. Soc., vol. 4, 1872, p. 169. 

 Trachynotus ejuncidus Cresson, Trans. Am. Ent. Soc., vol. 4, 1872, p. 169. 

 Trachynotus canadensis Provancher, Nat. Can., vol. 11, 1879, p. 119. 

 Nototrachys canadensis Cresson, Synop. N. Am. Hym., 1887, p. 200. 

 Nototrachys ejuncidus Cresson, loc. cit. 

 Nototrachys texanus Cresson, loc. cit. 



Sixty North American specimens of Anomalon in the National 

 Collection have been examined. Included in this number are 

 a paratype of texanus Cresson and a homotype (Gahan) of 

 canadensis Provancher. Notwithstanding the fact that in this 

 material there are to be found considerable differences in color 

 as well as slight structural differences, we are unable to find any 

 characters of either color or structure that appear to be constant. 

 We are therefore in doubt as to whether the material represents 

 one species or more than one. The paratype of texanus and the 

 homotype of canadensis are in our opinion the same species, how- 

 ever, and since they agree in every way with Say's description 

 of ejuncidus we are constrained to believe that Say's species is the 

 same. 



10. (Anomalon) Thyreodon flavicornis (Say). 



Anomalon flavicornis Say, West. Quart. Kept., vol. 2, 1823, p. 73 (Leconte ed., 

 vol. l,p. 163). 



This species was confused by Norton 1 and subsequent authors 

 with Anomalon flavicornis Brulle, a species now referred to 

 Heteropelma. The color of the wings as described by Say is 

 sufficient to show that his species is not the same as Brulle's. 

 This color immediately suggests Thyreodon flammipennis Ash- 

 mead and T. fernaldi Hooker, species from the same general 

 region as that recorded for flavicornis Say, and although we have 

 seen no specimen that agrees exactly with Say's description we 

 are strongly of the opinion that the species should be referred to 

 this group. 



11. (Anomalon) Xorides humeralis (Say). 



Anomalon humerale Say, Contrib. Maclur. Lye. Phila., vol. 1, 1828, p. 74 



(Leconte ed., vol. 1, p. 378). 

 Xorides humeralis Say, Boston Journ. Nat. Hist., vol. 1, 1835, p. 223 (Leconte 



ed., vol. 2, P . 682). 



Xylonomus lavalensis Provancher, Nat. Can., vol. 6, 1874, p. 59. 

 Xylonomus humeralis Provancher, Nat. Can., vol. 12, 1880, p. 100. 

 Xorides humeralis Rohwer, Proc. U. S. Nat. Mus., vol. 57, 1920, p. 434. 



iproc. Ent. Soc. Phila., vol. 1, 1863, p. 360. 



