THE CANADIAN ENTOMOLOGIST. 18 



o 



He stated that three or four years since he had placed a number of cocoons 

 of S. cynthia on a shelf in his house, and that after lying there all that 

 time some of them had this year produced the perfect insect. 



Dr. Hagen referred to an instance related by Kirby & Spence where a 

 beetle, Buprestis sp/endida, was ascertained to have existed in the wood 

 of a pine table more than twenty years (7th edition, p. 121). 



Mr. Saunders mentioned the fact that the perfect insect of CEcanthus 

 niveus frequently came to sugar at night, when they were readily captured. 

 He thought that where they were very numerous this method of trapping 

 them might be employed with advantage. 



Mr. Lintner observed that he had taken 16 species of Catocala at sugar 

 this season, and that a friend of his who has been sugaring industriously 

 has found the Catocalas to be most' abundant about midnight. 



On the 24th another meeting of the Club was held at 2 p. m., the 

 President in the chair. 



The Committee on Nomenclature, consisting of Dr. LeConte, S. H. 

 Scudder, A. R. Grote, C. V. Riley and W. Saunders, reported a set of 

 rules, on some of which they were unanimous, while on others there was 

 a divided opinion. They had given all the attention to the subject possible 

 within the limited time at their disposal, but had not found time to con- 

 sider the explanations offered in the majority report presented, and 

 suggested that these be referred back to the Committee 'with power to 

 print such explanations as may be agreed on with the rules. 



The following are the rules submitted : 



1. The binominal system, as originated by Linnaeus, is the only one 

 to be recognized. The use of a third word, however, connected with the 

 second by a hyphen, as is common and desirable in the case of gall 

 insects, e. g., Cynips quercus-palustris, is not to be considered as an 

 infraction of this rule. (Unanimous.) 



2. Where a specific name has been generally adopted during a 

 period of twenty years, such name shall not be changed for one of prior 

 date. (Divided opinion.) 



3. The name placed after a genus should be that of the author who 

 established the genus in the sense in which it is actually used, but the 

 name of the author who first proposed the term should be cited in 

 brackets. (Unanimous.) 



