466 MR. A. G. BUTLER ON THE GENUS EUPTYCHIA. [Nov. 22, 



"Alis integris, fuscis : subtus strigis tribus ferrugineis dimidioque 

 apicali grisescente ; posticis ocellis quinque bipupillutis, 2°, 4°, 5° 

 supra conspicuis. 



"About 1J inch in expanse. The upperside of the wings dark 

 brown. 



" The underside is of a pale shade, nearly of the same brown from 

 the base to the middle, with two ferruginous transverse lines ; be- 

 coming greyish towards the apex, with a row of four ocelli in the 

 front wings, and a row of five in the hind wings, the second, fourth, 

 and anal ones visible above ; these ocelli, which are bounded in front 

 by a ferruginous waved line and a double blackish line, are very dark, 

 with yellowish iris and double silver pupil ; of those in the front 

 wings only two (the first and last) are visible above." — Enc. Meth. 



Hab. Guiana. 



Var. Alee supra ocellis primo et quarto indistinctissimis , micro- 

 scopio solum manifestis. 



Alar. exp. unc. 1^. 



Hab. Para. B.M. 



If measured as it is when set, this insect would only expand 

 \\ inch; but taking each wing separately the expanse is If inch. 

 This fact perhaps may account for many errors into which authors 

 have fallen with regard to the measurement of Lepidoptera. 



20. Euptychia erigone, sp. n. (E. mcepius, var. ?) (PI. 

 XXXIX. fig. 5.) 



Alee supra olivaceo-fuscce, linea media obliqua fusca post cellam 

 posita ; anticce lineis tribus marginalibus indistinctis fuscis ; 

 posticce lineis tribus distinctioribus, interna apud apicem angu- 

 lata, ocellis quinque submarginalibus nigris ochreo cinctis, se- 

 cundo obsoleto, quarto magno cceruleo pupillato, quinto minimo 

 argenteo pupillato. 



Alee subtus pallidiores, lineis duabus mediis apud unguium analem 

 posticarum angulatis, lineis tribus marginalibus fuscis, interna 

 undulata ; anticce area apicali ochreo-fusca, fascia lata media 

 fusca, ocellis tribus subapicalibus fuscis ochreo cinctis, infimo 

 majore cceruleoque bipupillato ; posticce area apicali cinerea, fascia 

 media lata fusca ocellisque quinque submarginalibus argenteo- 

 cceruleo bipupillatis, primo secundo et quinto nigris flavo cinctis, 

 aliis fuscis flavo cinctis, secundo et quinto majoribus : corpus 

 olivaceo-fuscum, antennis fuscis. 



Exp. alar. unc. 14. 



Hab. S*° Paulo. B.M. 



Var, Posticce supra, ocellis parvis, indistinctis. 



Hab. Ega (Coll. Bates). 



Allied to E. mcepius. It chiefly differs in the number of ocelli 

 upon the upperside, in E. mcepius only three being visible in the 

 hind and two in the front wings, in this insect none in the front 

 and five in the hind wings, one of which is, however, very indistinct; 



