Mr. W. C. Ilewitson on new Sj)€Cies of IlesperkUv. 347 ' 



The name Noctilioniihr^ ^^ray, must therefore be rejected 

 alto^^ether by those who adopt my ehissiheation ; and it is 

 evident tliat, as Dr. Peters's fainilics lir<irh\i<ira and Mnlassi 

 are united by njc in a sin^h' t"anHly,it would be very undesirable 

 to designate the new family thus formed by either of these 

 names, which previously indicated only a section of it. 



XXXIII. — Description of twenty new Species o/" Hesperidaj. 

 By W. C. Hewitson. 



Ismene Taranis. 



Alls anticis supra cincrco-fuscis : posticis fuscis, fimbria alba, ad au- 

 gulum aualem fulva : posticis infra fascia triaiigulari allja puncto 

 atro notata, macula fulva subanali. 



Upperside brown, covered more or less, and especially near 

 the base of the posterior wing, with grey hair. Posterior wing 

 dark brown beyond the middle : the fringe, except at the anal 

 angle, where it is orange, white. 



Underside grey-brown. Posterior wing with a large central 

 white s])ot marked by a roimd spot of black : a triangular 

 orange spot near the anal angle : the fringe as above. The 

 body beautifully tessellated with orange, black, and white. 



Exp. 2\ inches. 



Hah. Zanzibar. 



In the collection of Dr. Staudinger. 



Near to /. Pansa^ Hew., from Madagascar. 



Ismene Bixce. 

 Ismene Bi'xo', Clerck, Icones, pi. 42. fig. 4. 



Ismene Chalyhe. 



Igmene Vhali/he, Doubleday & Hewitson, Genera of Diurnal Lepidoptera, 

 pi. 7!>. tig. 2 ; Donovan's Nat. Repos. v. pi. 106. 



The two butterflies I have quoted above, which have been 

 considered as one, are very distinct species, as will be seen at 

 once on comparing Clerck's and Donovan's figures of the 

 undersides. In /. Bi.rn' the posterior icing is protruded at the 

 shoulder, and has the white spot at a distance from the 

 margin. In /. Chalyhe the wing is of the ordinary form, and 

 the white spot touches the margin. I have not quoted Lin- 

 naeus, because his description will apply to either species, and 

 Clerck's figure has the priority. 



