| It is best distinguished from the Canadian Tiger Swallowtail by the entirely yellow lunular submarginal spots on the underside of the hindwing. |
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| The two bands became docile subsistence farmers on submarginal agricultural land. |
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| The placenta is usually located in a region corresponding somewhat to the margins of a leaf but is actually submarginal in position. |
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| Marginal and submarginal meristems on opposite flanks of the primordium initiate leaf-blade formation. |
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| The female has orange forewings with prominent black spots and an orange submarginal zigzag band on the hindwing upperside. |
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| The underside is chalky white to pale grey with tiny dark grey spots and a zigzagged submarginal line on the hindwing. |
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| The two black spots on the forewing leading edge are much more intensely black than the marginal and submarginal grey bands. |
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| The cells below, the submarginal initials, provide the tissue of the inner part of the leaf. |
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| The underside is greenish yellow with a thin pink rim around the central silver spot and no submarginal spots. |
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| A Mill tax cannot cause supermarginal land to become submarginal, because marginal land pays no tax, while supermarginal land pays less than its full rental value in tax. |
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| Both sexes have green submarginal lunulate markings. |
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| The hindwing underside is grey with a wavy, dull submarginal orange line. |
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| The hindwings are reddish brown on the underside with a marginal row of white hourglass-shaped spots and a submarginal row of white crescents above black dots. |
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| Dorsum with submedian lines of dorsal setae, and submedial and submarginal lines of simple pores. |
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| The underside of the wings has a row of brown submarginal spots. |
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| Rangelands are thus more generally confined to areas of marginal or submarginal agricultural land or to areas that are entirely unsuited to permanent cultivation. |
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| The underside is white, yellowish to cream, or silvery grey, depending on subspecies, with small black dots and a thin zigzag submarginal band of orange. |
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| Longitudinal and transverse moulting sutures reaching submarginal furrow, longitudinal moulting suture crenate along median line. |
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