2 A. G. Butler — Oldest known Fossil Butterfly. 



the generic title of EopTirynus, was redescribed by H. Woodward 

 from a new and "very perfect specimen ; it having been originally 

 figured and described by Dr. Buckland as Curculioides Prestvicii. 



This paper is accompanied by a list of 44 insects from the Coal- 

 measures, 7 from the Devonian, and 1 Permian example. 



Another new British Arachnide, named ArcJiitarhus svhovalis, 

 H. Woodw., from the Coal-measures, Lancashire, and an allied 

 species from the Coal of Illinois, U.S., named Architarbus rotundatus, 

 Scudder, were figured and described in Geol. Mag., 1872, Vol. IX., 

 PL IX., p. 385. 



Lastly, in the Geological Magazine for December we figured and 

 reprinted the description of a new fossil Butterfly, Satyrites Beynesii, 

 from Aix in Provence, determined by Mr. Samuel H. Scudder, of 

 Boston, U.S. 



It is no small pleasure this month to add the description of a new 

 Lepidopterous insect from the Stonesfield slate near Oxford, which, 

 together with figures and descriptions of two other forms from 

 Aix-la-Chapelle and Eadaboj in Croatia, have been kindly communi- 

 cated to us by the author of " Lepidoptera Exotica," from the 

 current January number of that work. Edit. Geol. Mag. 



II. — On a Fossil Butteeelv belonging to the Family 

 Ntmphalidje, from the Stonesfield Slate near Oxford,^ 

 WITH Notices of Two other Foreign Forms from France 

 AND Croatia. 



By Arthur G. Butler, F.Z.S., 

 of the British Museum. 



(PLATE I.) 



GENUS Palceontina, Butler (fossil). Frontwing ovate triangular; 

 costal nervure much swollen at base ; subcostal four-branched, 

 the first two branches emitted about half-way between discoidal 

 cell and apex ; the third emitted abnormally just beyond the cell, 

 and therefore springing from beneath the nervure ; the fourth 

 emitted in a still more unusual manner from the third ; so that the 

 third and fourth branches might be described as springing together 

 from a footstalk emitted from beneath the subcostal ; discocellular 

 and discoidal nervures precisely as in Caligo ; median branches 

 nearer together than in Caligo ; submedian nervure following the 

 same direction as the median nervures, but even more distinctly 

 inarched, so that the internal area is considerably widened : hind- 

 wing and body wanting. Type Palceontina ooliticn. 

 Palceontina ooUtica. sp. n. PL I. Figs. 1, 2. cf ? 

 Alse anticse costa bene producta apud apicem arcuata ; mairgine externo perlongo 

 paululum arcuato ; margine interno brevissimo arcuato ; Yenis ferrugineis ; coloribus 

 obsoletis : exp. alar. circ. unc. 5, lin. 3. 



^ This description and the accompanying Plate are, by the tind permission of the 

 author, extracted from and issued simultaneously with Part XV. of the " Lepidoptera 

 Exotica," or "Descriptions and Illustrations of Exotic Lepidoptera," for January, 

 1873. By A. G. Butler, F.Z.S. (p. 126, pi. xlviii.) 



