279 



Dipterological Nomenclature. 



Bj Gr. H. Verrall, Newmarket (England). 



It is most uiifortiiniite for Dipterology that a mania seems 

 to liave ariseu for proposing iiew names for Genera lipon the slightest 

 suspicion of preoccupation. This has been especiall}^ noticeable Avitli the 

 geniis l'silopKs, in wliich author after author has taken it for granted 

 that Mei gen 's generic name had been preocciipied. I have persistently 

 retained the name for the Dohchopodidgenus, becanse I had no 

 pruuf of any übler iise of the name. It is now stated that Poli's 

 Molkiscous name of 1795 was not nsed in a generic seuse and that 

 therefore after all Meigen"s name can remain. 



Latreille's genns Ephippium has been changed to Ephip- 

 piomijia lipon the vagne statement that the word Epldppiton had 

 been nsed in some previousl}^ iinrecorded work, Ijut not the slightest 

 effort has been made to fest the supposed older generic term. Again 

 Clitellaria (1803) has been proved to be older than Epliippium, 

 because Schiner gave 1809 as the date of Latreille's foun- 

 (lation (if bis geniis, but a very slight examination woiild have shewn 

 tbat Latreille's genus was founded in 1802. 



This year Prof. M. Bezzi in Heft 11, p. 51 uf this Magazine 

 has dealt with several generic names in a most nnfortunate manner. 



1. Cerochetus A. M. C. Dumeril (1816) 1823. This genus 

 was founded by Dumeril in Zool. Anal. 282 (1806), and iintil 

 proved to be valid does not require to be amended to Crratochaetus, 

 a name which has already been used and which is therefore inad- 

 missible. 



2. Ceyx A. M. C. Dumeril (1801). This genus cannot super- 

 sede Calobata until its original description is collated and then it 

 will prol)ably be found to have no species connected with the genus. 

 8omebody has identified it with Hydrophorus but the figure in 1823 

 is unmistakably a Calobata. 



3. Chrysopsis A. M. C. Dumeril 1823. This mis-spelling 

 was also used by Dumeril in 1806. 



Wiener Bntomologische Zeitung, XXVI. Jalirg., Heft VII, VIII und IX (20. August 1907). 



