White lines crossing the wing? Identify butterflies

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	Underside hind-wing: Is there a white dashed line crossing the wing?
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What is meant is a white discontinuous line in the postdiscal or submarginal area . It primarily characterizes the Hairstreaks (Theclinae), where the line can be so strongly interrupted that it can even be missing (Green Hairstreak - rubi). Many white lines can be found on Short-tailed Blue and Lang's Short-tailed Blue (boeticus, pirithous).
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Underside hind-wing: Is there a white dashed line crossing the wing?