author(s)
Rofiza Yolanda, Arief Anthonius Purnama

abstract
Papilionidae is a worldwide family, mostly tropical and containing many of largest and most beautiful insects, commonly known as swallowtails or birdwings butterflies. The objective of the present study was to explore the species of swallowtails butterflies in Rokan Hulu District, Riau Province, Sumatra, Indonesia. The sampling was done during November 2014 to January 2016 at nine areas of three Sub-district of Rokan Hulu District, Riau Province, Sumatra, Indonesia. We recorded 11 species of swallowtails butterflies belonging to 4 genera, namely Graphium agamemnon, G. antipathes, G. delessertii, G. evemon, Pachliopta aristolochiae, Papilio demoleus, P. demolition, P. memnon, P. nephelus, P. polytes and Troides amphrysus. The genus Papilio is the predominant in species number in this study.