6 PROCEEDINGS OF THE NATIONAL MUSEUM vol. H9 



blue color on the upperside of hind\ving more lustrous and covering a 

 larger area, and in having a dark gTay ground color below. The re- 

 maining three species: caulonia, janeirica, and chacona are most 

 closely related. They can be distinguished except for a few genital 

 characters, only by color characters on the upper surfaces of the hind- ', 

 wings. C. chacona has a broad black outer border that completely i 

 obliterates the marginal black spots and consequently has a much 

 smaller discal blue area; it has a marginal bluish white line in inter- 

 space Cu2 only. C. janeirica has the outer border narrower, containing 

 two large marginal black spots, nearly confluent but outUned by a : 

 trace of blue. Because of the narrow border there is a larger blue disc \ 

 in janeirica. This species also has a marginal bluish- white Hne extend- ! ' 

 ing above vein Cui. C. caulonia has the marginal spots much smaUer 

 and more isolated than in janeirica, with marginal bluish-white line 

 as in janeirica. 



Calycopis bactra (Hewitson), new combination 



Figures 1, 20a, 22, 35-42 



Thecla hactra Hewitson, 1877, Illustrations of diurnal Lepidoptera: Lycaenidae, 



vol. 1, p. 194; vol. 2, pi. 77, figs. 619, 620. 

 Thecla beon (Cramer). — Godman and Salvin [not Cramer, a misidentification, 



in part], 1887, Biologia Centrali-Americana, Lepidoptera-Rhopalocera, 



vol. 2, pp. 74, 75. 



Male (figs. 35, 36). — Forewing above dark brown, nearly black, 

 sometimes with a faint and dull bluish-purple irridescence over base; 

 fringe paler brown. Hindwing above with costal and outer margin 

 dark brown, nearly black; base and cell to outer dark border lustrous 

 blue with a slight purplish tinge; abdominal margin below vein 2dA 

 thickly covered in middle with pale grayish-purple scales; lobe of 

 anal angle with a smaU orange-red spot, surrounded by the dark 

 ground color; immediately above this on abdominal margin a small 

 nearly triangular white spot; above anal angle along outer margin a 

 pale bluish-white submarginal line between veins 2dA and Mg; tips 

 of taUs white; fringe at base of tail Cuo white. Undersides of both 

 wings with ground color pale brown; with two very faint parallel 

 bars slightly darker than ground color crossing the end of each dis- 

 coidal cell, area between these bars dirty white and sometimes con- 

 taining a few scattered red scales; fringe slightly darker than ground 

 color and on hindwing containing a few bluish-white scales below 

 vein Cui. Forewing above vein Cu2 and hindwing with a narrow 

 tricolored postmedian line or band; this band white along outside, 

 black in middle and orange red along its inner side. Below vein Cui 

 this band has a W-shape; the V-shaped bar, present in some species 

 of Calycopis in interspace M3 and on vein Cui is absent or only slightly 



