OPINIONS RENDERED BY THE INTERNATIONAL 



COMMISSION ON ZOOLOGICAL 



NOMENCLATURE 



Opinions 82 to 90 



OPINION 82 



Suspension of Rules for Musca Linnaeus, 1758A, 

 Type M. domestica 



SUMMARY. — By authority of the power conferred on the Commission by the 

 gth International Congress of Zoology to suspend the Regies as applied to any 

 given case where in its judgment the strict application of the Regies will 

 clearly result in greater confusion than uniformity, Article 30 is hereby 

 suspended in the case of Musca Linnaeus, 1758, and Musca domestica Linnaeus, 

 1758, is hereby designated as type of Musca without prejudice to other cases. 



Statement of case. — The Commission has received two separate 

 requests bearing upon the genus Musca Linn., 1758, and one of these 

 considers also the genus Calliphora Desvoidy, 1830. The more com- 

 plete statement of the case is that submitted by W. Dwight Pierce 

 and reads as follows (Additions by the Secretary are marked *) : 



The Cases of Musca domestica Linnaeus, and Calliphora 

 voMiTORiA Linnaeus 



Original Description of Musca 



1. Linnaeus, Carolus, 1758, Systema Naturae, loth edit 



Genus No. 222 Musca, pp. 589-601, 100 species. Includes No. 52, vomitoria, 

 P- 595 ; No. 54, domestica, p. 596. 



Subsequent References to Musca 



2. Geoffroy, Et. L., 1762, Histoire abregee des Insectes. Vol. 2. 



Genus Musca, pp. 483-538. Includes No. 59 {vomitoria). No. 66 

 {domestical. 



Smithsonian Miscellaneous Collections, Vol. 73, No. 3 



