2 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.51. 



Fore wing with vein 2 from near middle of cell; 3 and 4 approxi- 

 mate at lower angle; cell closed; 5 from middle of cross- vein; 6 at 

 apex of cell; 7 and 8 absent; 9, 10, 11, free on the cell. Hind wing 

 with the cell open; 5 from the middle of the obsolete cross- vein; 6 

 and 7 from the apex of the cell; 8 curved at base widely separate. 

 Palpi with the second joint obHque; third porrect, lanceolate. 



'Type of the genus.— Ipidecla miadora, new species. 



IPIDECLA MIADORA, new species. 



Above gray-black, the basal half of fore wing and all of hind wing 

 washed with blue-gray. Below bluish gray, veins of hind wing black; 

 a patch at costa, base of hind wing and smaller one or fore ^ving 

 bright orange. Expanse, 22 mm. 



Type. — Female, No. 18825, U.S.N.M.; Sierra de Guerrero, Mexico, 

 July, 1913 (R. Muller). 



Family LYCAENIDAE. 



Genus THECLA Fabricius. 



THECLA ARINDELA RINDE, new subspecies. 



Fore wing black; a broad metalUc greenish blue area over the lower 

 half of the cell to iimer margin, extending outward roundedly to near 

 tornus. Hind wing of the same blue, with a black border, broadest 

 at the apex and running along the iimer margin; a black line along 

 the lower half of the margin with long scales at the anal angle; tail of 

 vein 2 long, white-tipped. Beneath dull ash gray, sUghtly brownish; 

 on fore wing a single band from costa to vein 2, blackish, white-edged 

 without; a httle irregular; on hind wing, faint dark specks subbasaUy 

 above cell; outer line broken into segments, that between veins 4-5 

 outward, between 2-3 much outward, but continues thence to the 

 inner margin, in-angled at veins 1-2; a sub terminal silvery powdered 

 band; a black spot at tornus and small submarginal red, black-centered 

 ocellus between veins 2-3 ; a marginal black and white hue. Expanse, 

 34 mm. 



Type. — No. 19251, U.S.N.M.; Sierra de Guerrero, Mexico, Decem- 

 ber, 1910 (R. MuUer). 



THECLA SYNCELLUS SIERRAE, new subspecies. 



Light blue above, fore wing blackish along costa, margin and 

 broadly apically. Hind wing with the veins dark and the margin 

 very narrowly so; black submarginal spots between veins lc-2, 2-3; 

 a black terminal hue; tails black with white tips, the one at the end 

 of vein 2 long. Below pale gray; fore wing with sUghtly obhque Hue 

 from costa to vein 2, gray within, whitish without. Hind \ving vnth. 

 an outer irregular, similarly colored hne, the segment between veins 



