PL. 



spindle-shaped; caterpillar relatively long, with small headJ 

 chrysalis with the head greatly produced, wing-cases compressed 

 forming a keel-shaped projection. 



(1) Euchloe ausonides (Lucas), Plate C, Fig. 3, <j\ under 

 side (The Western Orange-tip). 



On upper side wings at apex tipped with dark fuscous, and 

 lack altogether the orange or red which is characteristic of 

 most of the other species of the genus. On under side fore 

 wings have a very pale greenish tint; hind wings marked with 

 three irregular green bands, more or less broken up, forking in 

 various directions. Expanse 1.65-1.90 inch. 



Ranging from Arizona to Alaska and eastward to Colorado. 



(2) Euchloe genutia (Fabricius). Plate C, Fig. 4, tf (The 

 Falcate Orange-tip). 



Readily recognized by the hooked tip of the fore wings. 

 The female has rio orange marking on the tip. Single-brooded 

 in the Northern States, but double-brooded in the Carolinas. 

 Expanse 1.30-1.50 inch. The caterpillar feeds on Sisybrium, 

 Arabis, Cardamine, and other cruciferous plants. 



Ranges from New England to Texas. 

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