116 THE CANADIAN ENTOMOLOGIST. 



CORRESPONDENCE. 



GENERA OF THYSANURA. 



Sir, — The recent changes in the generic names of Thysanura (Vol. 

 XXV., p. 313 et seq., vol. xxvi., p. 54) suggest a few comments. 



Lipura and Anoura are changed because preoccupied in Mamma- 

 logy. I do not find these names in Flower and Lydekker's recent work, 

 and it may be that they do not represent valid genera of Mammals. But 

 on p. 314, Mr. Macgillivray states that both Anurophortis and Adicranus 

 have for their type Podtira fimetaria, which belongs to Lipura, Burm. 

 Why, therefore, is the new name Aphorura proposed for Lipura, when 

 two names, neither apparently preoccupied, already exist ? 



Anoura, it appears, had also been used for a genus of Echinoderms- 

 previous to the publication of the Thysanuran genus. 



Tricejia had been used three times before the genus of Thysanura. 

 was named, so it will doubtless have to be changed, as Mr. Grote indi- 

 cates. But can the name Macgillivraya be used ? I find in Scudder's 

 Nom. Zool. a genus Macgillivraya, Forbes, 185 1, belonging to the 

 Mollusca. 



What is the date of Lubbockia, Haller? Apparently 1880. But I 

 find in Scudder's work a genus Lubbockia, Claus, of Crustacea, dating 

 from 1862. T. D. A. Cockerell, New Mexico Agnc. Exp. Station. 



Errata. — Can. Ent., p. 32, line 4, for Prosofophara read Proso- 

 POPHORA. Can. Ent., p. 36, line 6, for "the ridiculous" read "be ridiculous." 

 Can. Ent., p. 38, line 22, for Coleopterous read Coleophora. 



CALOTARSA ORNATIPES. 



Sir, — Professor Townsendhas been misled by certain resemblances in 

 referring his new genus Carlotarsa (Can. Entom., XXVL, p. 50), to the 

 Syrphidae, where it certainly would be an anomalous form. It belongs 

 among the Platypezidse, and is apparently synonymous with Platypeza, 

 though it may be new. The family receives its name from the peculiar 

 structure of the tarsi, There have been three genera with terminal arista 

 described from North America belonging among the Syrphidte — Ceria, 

 Pelecocera, and Callicera. (See Snow, Kans. University Quarterly, Vol.. 

 I., Part I., 1892). S. W. WiLLiSTON, Lawrence, Kansas, Febr. 9, '94. 



Mailed March 31st. 



