26 THE ENTOMOLOGICAL CODE, 
For the sake of uniformity, it is recommended that the following 
scheme of grouping be followed in the order indicated below when- 
ever applicable: 
Order. Genus. 
Suborder. Subgenus. 
Superfamily. Species. 
Family. Subspecies or variety. 
Subfamily. Race. 
Tribe. Aberration, sport, &e. 
Subtribe. 
In cataloging, the employment of a small serial number after each 
reference, to be repeated in connection with the citation of informa- 
tion therein given, will indicate the authority for each item. 
Example.—Beta alba (Smith). 
Alpha alba Smith, Proc. Ent. Soc. Paris, vol. xii, p. 
76 (1900); Jones, Rev. Ent. Inf., vol. ii, p. 7 
(1904) (2); Beta alba Brown, Ent. Journ., vol. lv, 
pe Omi) ey 
Hab.—United States: 3) ; Mexico). 
Feeds on Salix); g dimorphic). 
Thus Brown is responsible for the statement that it feeds on Salix, 
and Jones for the male being dimorphic, and occurrence in Mexico. 
