Estrada C, Jiggins CD. 2002 "Patterns of pollen feeding and habitat preference among Heliconius species". Ecological Entomology. 27, 448–456. doi:10.1046/j.1365-2311.2002.00434.x
Russell E. Naisbit, Chris D. Jiggins, James Mallet. "Disruptive sexual selection against hybrids contributes to speciation between Heliconius cydno and Heliconius melpomene". Proceedings of the Royal Society of London B. 2001 268 1849-1854; doi:10.1098/rspb.2001.1753. Published 7 September 2001.
funet.fi
ftp.funet.fi
Savela, Markku. "Heliconius Kluk, 1780". Lepidoptera and Some Other Life Forms. Retrieved 8 November 2017.