*o. 3611 CALYSTRYMA FIELD 3 



Key to the Species of Calystryma 



males (except C. cinniana) 



1. Uppersurfaces of hindwings bright blue 11. C. trebula 



Uppersurfaces of hindwings not as above 2 



2. (1) Harpes separate along ventral margin, fused only at base; posterior lobes 



of 8th tergite blunt or rounded (figs. 2-12) 3 



Harpes fused along ventral margin for nearly one-half their length from 

 base; posterior lobes of 8th tergite acute (fig. 1) . . . 1. C. keta 



3. (2) Harpe with apex bifurcate; uncus deeply bilobed dorsally (fig. 12). . . 



12. C. tifla 



Harpe with apex blunt or gradually acuminate, not bifurcate; uncus 

 only shallowly bilobed dorsally (figs. 2-11) 4 



4. (3) Harpe short and blunt and in lateral view slightly concave distally 



(figs. 6, 7) 5 



Harpe longer and gradually more narrow toward distal end (figs. 2-5, 

 8-10) 6 



5. (4) Ground color of wings above brown 6. C. mail a 



Ground color of wings above dull metallic purple, slightly dull green 

 at base 7. C. anapa 



6. (4) 8th tergite deeply incised in middle of posterior margin and greatly 



elongated anteriorly (figs. 8-10) 7 



8th tergite more shallowly incised in middle of posterior margin and 

 not distinctly elongated anteriorly (figs. 2-5) 9 



7. (6) Ground color of uppersurfaces of wings brown 10. C. barza 



Ground color of uppersurfaces of wings dull metallic purple .... 8 



8. (7) Hindwing underneath with a single submarginal pupillated red lunule, 



this in interspace Cui and small with a large pupil (nearly % the size 



of entire lunule) 8. C. gentilla 



Hindwing underneath with two submarginal pupillated red lunules, 

 one in interspace Cui and the second in interspace M3, both lunules 

 with small pupils (not nearly }•> size of lunules) .... 9. C. pisis 



9. (6) Posterior projection of uncus broadly rounded (fig. 5) ; ground color of 



wings above dull metallic purple with greenish reflections in base. 



5. C. meleager 



Posterior projection of uncus narrow and toothlike or beaklike (figs. 

 2-4) ; ground color of wings above brown 10 



10. (9) Ground color of wings underneath distinctly brown; with a single sub- 



marginal pupillated red lunule in interspace Cui ... 2. C. atrox 



Ground color of wings underneath light gray or pale brownish gray; 



with two submarginal pupillated red lunules, one in interspace Ciii 



and one in interspace M3 11 



11. (10) Ground color of wings underneath pale brownish gray with a large and 



distinct red streak adjacent to inner side of postmedian line in inter- 

 space Cui 4. C. naka 



Ground color of wings underneath light gray without the triangular red 

 streak, at most with a small red lunule in this area . . 3. C. blora 



females (except C. blora and C. barza) 



1. Superior genital plate with free edge a long continuous ridge (fig. 13). 



2. C. atrox 



Superior genital plate with free edge divided into two lateral elements 

 (figs. 14-23) 2 



