INTRODUCTION. V 



was applied, supposing it to be original, in 18-30, but lo I ZetterstecU 

 in his 'Insecta Lapponica,' published in 1840, has a ConchylisAVest- 

 woodana ; consequently the poor Carpocapsa should receive a new 

 name : it however appears that Haworth described a bad specimen 

 of the insect in question from the identical example now remark- 

 ably enough in Mr. Westwood's collection, under the name of T. 

 expallidana, and which is restored to the species in tins Catalogue : 

 proceeding with the name under consideration — as one only amongst 

 several almost similarly circumstanced — it will be found that Sco- 

 poli, in his Ent. Cam. p. 235, 1763, has a Tortrix ruftma widely 

 different to the Vienna species, probably Paramesia Shepherdana 

 or P. ferrugana, and therefore from priority (were the reference cer- 

 tain) rufana should be employed for the Scopolian insect, and the 

 Peronea ought to receive a new appellation, in accordance with the 

 modern views herein repudiated ; it being clearly a vitious principle 

 to re-employ — as is, however, constantly done — a name once rejected 

 if one of a kind is alone to be used in each principal group." 



"Again, there is a Tovtrix grossana, Haiv. L. B. 1812 (Carpocapsa 

 fagiglandana, Heijd. 3ISS.), whose specific name is still retained, — 

 and with strict propriety as regards the ordinary rules of nomenclature, 

 — although there is a T. grossana of Thunberg, I. S. p. 45, 1791, a 

 Lozotcenia, allied to Branderiana, but not indigenous, and omitted 

 in modern Catalogues of European Lepidoptera, although well- 

 known to, and mentioned by, Zetterstedt in 1840. At least a score 

 of similar instances might be added." 



" The tendency of the rule in question to promote confusion is thus 

 cursorily but manifestly shown : it is however advisable to apply 

 entirely unused names for new species, as far as practicable; a point 

 notwithstanding of the utmost difficulty in the present prolific state 

 of entomological literature : e. fj. under the genus Eetinia there is a 



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