THE ENTOMOLOGIST 



Vol. XXXI.] SEPTEMBER, 189 8. [No. 424. 



DICHRORAMPHA FLAVIDORSANA, Knaggs. 

 By H. Guakd Knaggs, M.D., F.L.S., &c. 



D. flavidorsana, reproduced from Robinson'' s figure (E. A. for 1867). 



Some time ago my attention was drawn by Mr. South to an 

 article in the ' Annals of the Entomological Society of Belgium ' 

 (February, 1898, pp. 34-38), by Baron de Crombrugghe de 

 Picquendaele, on certain Lepidoptera new to the Belgian fauna, 

 wherein was a note referring to the distinctness of the above 

 insect from D. petiverella, the difference of its habits from that 

 species, and its attachment to its food — the tansy. 



After reading this I took the liberty of writing to the Baron, 

 who most obligingly supplied me with half a dozen specimens of 

 the insect in question, and informed me that they had been 

 named "D. flavidorsana, Knaggs," by Drs. Staudinger and 

 Bang-Haas ; but that Lord Walsingham had subsequently 

 pointed out to him that they were qucestionana, Zeller — 

 alpinana of Stainton's ' Manual.' 



From my recollection of the original specimen, from which 

 my description (E.M. M. hi. pp. 176-7) and Robinson's figure 

 (Ent. Annual for 1867, plate, fig. No. 5) were taken, I felt satis- 

 fied that flavidorsana could not be petiverella, and therefore 

 referred to my above-mentioned description, where I found : — 



BNTOM. SEPT. 1898. U 



