154 Mr. A. G. Butler on the 



Section Pamphila (typical). 



266. Pamphila phylaeiis. 



Papilio phylaus, Drury, 111. Exot. Ent. i. pi. 13, 

 figs. 4, 5 (1773). 

 2. Sta, Cruz, Rio Tapajos, 17tli March, 1874. 



Pyrgus, Huhner. 



267. Pyrgus syrichtus. 



Papilio syrichtus, Fabricius, Syst. Ent. p. 534, 

 n. 394 (1775). 

 Prainha, 8th December, 1873 ; Obydos, 26th January 

 and 4th February; Fazenda, near the rapids, Hio Tapajos, 

 14th March; Sta. Cruz, Rio Tapajos, 17th March; 

 Serpa, 22nd April, 1874, and 13th February, 1875; 

 Mauhes river, 2nd May, 1874. 



268. Pyrgus arsalte. 



Papilio arsalte, Linnaeus, Mus. Lud. Ulr. p. 245 

 (1764) ; Clerck, Icones, pi. 23, fig. 2 (1764). 

 Iripixy, Rio Trombetas, 30th January ; Serpa, in the 

 bush, 22nd and 24th April, 1874 ; 13th February, 1875. 



269. Pyrgus laginia. 



Leucochitonea laginia, Hewitson, Descr. Hesp. 

 p. 48, n. 7 (1868). 

 Gaviao, 10th November, 1874. 



AcHLYODES, Huhner. 



270. Achlyodes ecliptica, n. sp. 



Primaries sericeous-grey; two black bands across the 

 laasal area, the second forming an angulated fork which 

 crosses the end of the cell; an elbowed discal black band, 

 above which is a subcostal spot ; a lunulated submarginal 

 black band, ending in a short black bar at external angle ; 

 secondaries sericeous-grey, crossed by two curved central 

 bands of black; outer border rather broadly black; body 

 blackish ; wings below purplish, transverse bands less 

 strongly defined; costal area of primaries between the 

 bands pale grey towards apex; marginal border of second- 

 aries replaced by a submarginal series of lunate black 

 spots: expanse of wings 1 inch 7 lines. 



Rio Tapajos, 11th January; Pariti, Rio Purus, on 

 edge of river, 5th October, 1874. 



