90 Annals Entomological Society of America [Vol. IX, 



First. The name of each family must be derived from that 

 of some included genus and such genus then automatically 

 becomes the type of such family, and the family name must 

 follow that of its type genus through all its mutations. Hence, 

 if the name of the type genus is found to be preoccupied the 

 family must take the new name applied to such genus and not 

 the next oldest name used in the family, as that would virtually 

 be changing the type and thus breaking down the very founda- 

 tion of the plan. 



Second. A family name cannot be rejected when the limits 

 of the family are extended or restricted any more than in the 

 case of a generic name. The family name merely means the 

 group of genera related to the type genus be that group large 

 or small. 



Third. While desirable it is not essential that the name of 

 a family as first founded be in the correct latin form. Colloquial 

 names when formed from a valid generic name so as to indicate 

 indubitably the type genus must be accepted. Similarly, a 

 family name founded with a different termination or in a dif- 

 ferent category is to be accepted and its termination changed to 

 bring it into accord with the International Rules. Hence, a 

 subfamily or tribe may be raised to family rank by changing its 

 termination to idcB. 



Fourth. When two or more families are united the name 

 having priority must stand. Page precedence must not be con- 

 founded with priority, it has little to do with nomenclature and 

 should be applied only as a last resort. 



Fifth. However desirable it is not essential to validity that 

 the founding of a new family be accompanied by a description 

 or even a summary of family characters. If the name be prop- 

 erly formed from that of a generic name that genus becomes its 

 type and it is to consist of the genera related to that type genus. 

 If characters are named and a later writer gives the family a 

 wider or narrower scope he cannot rename it on the assumption 

 that he has founded a new family. 



Sixth. If a family be divided into subfamilies, tribes or 

 divisions the section in each category containing the type genus 

 must bear the name of that genus with the termination ince for 

 subfamilies, ini for tribes and aria for divisions. This is in 



