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IX. On Some New and Little-hnown Neotropical Lycaenidae. 

 By Hamilton H, Druce, F.L.S., etc. 



[Read June 2nd, 1909.] 



Plate XI. 



The following short paper contains an account of some 

 new and little-known forms of butterflies belonginof to the 

 Lycaenidae, which have been placed in my hands for ex- 

 amination by Mr. H. J. Adams, and which were obtained 

 by his collectors, Messrs. Watkins and Tomlinson, in the 

 years 1902, 1903, 1904, in Peru. 



To these I have added a description of a small but very 

 distinct species from the Argentine, and some remarks on 

 several described forms. 



Thecla melidor, sp. nov. (Plate XI, fig. 4.) 



^ . Allied to T. atys, Cr.* Upper-side with brands as in that 

 species ; ground colour of wings bluer. 



Under- side. Both wings irrorated with green at ^the base, no 

 dark band closing the cell of the fore-wing. A long red streak on 

 costa of hind-wing extending almost half way to the apex, in place 

 of the red basal spot of T. atys. A red spot beyond the pale spot 

 below the red streak, which spot is not found in T. atys; a long red 

 streak running down the inside of the submedian nervure — this is 

 short in T. atys. The ground colour is greyer. 



The abdomen is vermilion below and blackish above. 



Expanse, 21- inch. 



Hah. Rio Colorado, Peru, 2,500 ft. {Watkins and 

 Tomlinson.) 



Type, Mus. Adams. Captured in August. 

 Allied also to T. lads, Godm, and Salv.,-f- and T. vul- 

 nerata, Staud. :[ 



* Papilio atys, Cr., Pap. Exot. iii, t. 259, figs. E, F (1782). 



t Thecla bacis, G. and S., B.C.A., Lep. Rhop., vol. ii, p. 21, PL 

 XLIX, figs. 20-22 (1887). 



:|: Thecla bacis, v. vulnerata, Stand., Exot. Schmett., p. 285, PL 

 XCVII. 



TRANS. ENT. SOC. LOND. 1909. — PART III. (SEPT.) 



