101 



87. One or two variegated ocelli at anal angle of liind wings beneath 



Hemiargus. 



87. Ocelli at anal angle of liind wings beneath, when present, similar to rest 



of hind border 88. 



88. Under surface of hind wings with complete submarginal series of orange 



or metallic markings Rusticus. 



88. Posterior margin of hind wings without colored markings on the under 



surface ; or, if present, only in the females, next the anal angle and to 

 but a slight degree 89. 



89. Upper surface of fore wings of both sexes with a distinct series of spots 



midway between the tip of the cell and the apex Philotes. 



89. Upper surface of fore wings without distinct spots, excepting occasion- 



ally, where they are indistinct and occur only in the female 90. 



90. Outer half of under surface of hind wings covered with irregular series 



of markings broadly bordered with white, so as to make the ground 



color of the outer half of the wing paler than the basal half 



Agriades. 



90. Outer half of under surface of hind wings of the same tint as the basal 



half, the submarginal markings simple, often subobsolete. . . .Cupido. 



91. Hind wings tailed Tliersalia. 



91. Hind wings not tailed 92. 



93, Basal joint of middle and hind tarsi of male decidedly thickened. . . 93. 



92. Basal joint of middle and hind tarsi of male barely or not at all 



thickened 95. 



93. Upper surface of wingt of males bright coppery Chalceria. 



93. Upper surface of wings of males brown or brownish coppery 94. 



94. Expanse of wings more than 25 m. m. Markings of under surface 



heavy, and on middle of hind wings formed of round spots, those in 

 the medio-submedian interspace outside the others Gaeides* 



94. Expanse of wings usually, especially in male, less than 25 m. m. Mark- 



ings of under surface usually (excl. Mariposa) light, and on middle of 

 hind wings always either formed of connected or nearly connected 

 transverse lunules, or if of roundish spots, those in medio-submedian 

 interspace in a regular curve with the others Epidemia. 



95. Under surface of hind wings with orange submarginal markings. . . .96. 



95. Under surface of hind wings with no orange markings Feiiiseca. 



96. Orange submarginal band of hind wings as broad below as above. Ex- 



panse of wings more than 30 m. m Chrysoplianns. 



9G. Orange submarginal band of hind wings narrower below than above. 

 Expanse of wings less than 30 m. m Heodes. 



