60 



[Augusf, 



log in this way. It occurs also in Devonshire and Derbyshire, as well 

 as in other parts of Scotland, in quickly running streams. 



With this I conclude my remarks on our British Gyrini, regretting 

 very much they are of so unsatisfactory a character ; this cannot, how- 

 ever, I think, be helped, as the species are very closely allied and yet 

 variable. A good collection, containing series of the different species 

 from various parts of the country, would be very interesting ; but these 

 insects appear to be much neglected by collectors. 

 Thornhill, Dumfries, May, 1868. 



DESCRIPTION" OF a NEW SPECIES of WEST AFRICAN PAPILIO, HITHERTO 

 CONSIDERED TO BE THE P. ZENOBIA OF FABRICIUS. 



BY. AETHUB G. BUTLER, F.L.S., F.Z.S. 



In his " Systema Entomologise," p. 503, n. 255 (1775) Fabricius 

 has characterized a Papilio under the name of Zenobia, as follows: — 



" Alee nigrse, fascia lata alba, anteriorum interrupta, nec marginem at- 

 " tingit. Margo sinuhus albis. Subtus concolores, at posticae basi 

 "flavae, nervis striisque atris." 

 " Habitat in Sierra Leone. Mus. Banks." 



From a comparison of the type-specimen, which perfectly answers 

 to the above description, with the specimens named as Zenobia in the 

 National Collection, I find that it entirely differs from them, being 

 identical with P. Messalina of Stoll (Suppl. Cramer, pi. xxvi., figs. 2, 

 2 b) ; the latter will therefore become a synonym of Zenobia, whilst 

 our insect hitherto supposed to represent the Fabrician species will 

 have to be re-named. I accordingly characterize it as 



Papilio Ctpe(eofila, sp. nov. 

 Alae supra nigrse; fascia discali continua lutea, anticarum 

 venis intersecta, intus sub-integra vel in venas fusco indentata, extus 

 semper inter venas dentata ; posticarum extus denticulata, intus in- 

 tegra : margine externo inter venas luteo maculate, maculis posticarum 

 multo majoribus : corpus nigro-fuscura, prothorace albo-punctato. 



Alse subtus pallidiores, fuscae, inter venas nigro striatae ; venis 

 nigris ; fascia discali continua luteo-albida, anticarum intus iotegra, 

 aliter velut supra, macula autem discoidali quadrata fasciam attingente ; 

 posticarum extus irregulariter marginata ; macula interrupta sub-ovali 

 apud fasciam discali ; area basali fulvo-brunnea, venis striisque nigris : 

 corpus albo maculatum, thorace nigro, abdomine fusco. 



Exp. alar. unc. 4,'. 



Sierra Leone and Ashantee. 

 British Museum ; June, 1868. 



