English: Forewing of butterfly Four-bar Swordtail, Graphium agetes, Family Papilionidae with first and second anal wings shown. This is one of three identification characterstics of the family. See Papilionidae#Characteristics for more information. Based on image taken from page 100 of Bingham. C.T. (1905) Butterflies (Vol 1).
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{{Information |Description={{en|1=Forewing of butterfly Four-bar Swordtail, ''{{w|Graphium agetes}}'', Family {{w|Papilionidae}} with first and second anal wings shown. This is one of three identification characterstics of the family. See {{w|Papilionidae