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XXIII. On the Diurnal Lepidoptera described in Omelin's 

 Edition of the Systema Naturae. By W. F. 



KlEBT. 



[Bead ,1st November, 1869.] 



Gmelin's edition of Linnaeus* 8ystema Naturce contains a 

 considerable number of new species of Diurnal Lepidoptera, 

 most of which were preyiously described at greater length 

 (but without names) by Zschach, in the Entomological 

 portion of the Museum Lesheantim. These names and 

 descriptions are never quoted, and therefore it may not 

 be useless to give full descriptions of all such species as 

 have not yet been satisfactorily identified, and indications 

 of the others. The remains of Leske^s collection are in 

 the Museum of the Royal Dublin Society, but the greater 

 .number of the specimens have succumbed to the ravages 

 of time and neglect. Nevertheless I have succeeded in 

 recovering several of the types, most of which I have 

 been able to identify, with the kind assistance of Mr. 

 Hewitson. A few of the more obscure or damaged types 

 I had not time to work out when in the neighbourhood 

 of London ; and one or two types which I had overlooked 

 were detected after my return to Dublin. These latter, 

 however, are of slight importance. Most of the types 

 are numlDcred, and are therefore certain ; but a few were 

 incorrectly numbered, or not marked at all; wherever 

 the smallest doubt about a type exists, it is indicated in 

 the following pages. 



Our collection is not sufficiently large for me to attempt 

 to identify those species of which no types exist ; but I 

 quote Gmelin's names and Zschach's descriptions in full, 

 hoping that if publicity is given to them, others may be 

 enabled to do so. Unfortunately Zschach gives no local- 

 ities, simply noting "'europaeus" or "exoticus," which 

 will increase the difficulty of applying his descriptions. 



It will be seen that in most cases Gmelin's names are 

 ; merely synonyms, but in some instances they have 

 priority, and a full claim to be restored. 



I take the species in the order in which they occur in 

 Gmelin, and where they have been satisfactorily identified, 

 the names by which they will henceforth, in accordance 

 with the law of priority, be known, are printed in capitals, 

 and referred to the modern genex'a. 



TRAKS. ENT. SOC. 1869. PART V. (DECEMBER.) 2 E 



