• Arias CF, Muñoz AG, Jiggins CD et al. (2008) A hybrid zone provides evidence for incipient ecological speciation in Heliconius butterflies. Molecular Ecology, 17, 46994712.
  • Arias CF, Rosales C, Salazar C et al. (2012) Sharp genetic discontinuity across a unimodal Heliconius hybrid zone. Molecular Ecology, 21, 57785794.
  • Bates HW (1862) Contributions to an insect fauna of the Amazon valley. Lepidoptera: Heliconidae. Transactions of the Linnean Society of London, 23, 495566.
  • Bates HW (1863) A Naturalist on the River Amazons. John Murray, London.
  • Blum MJ (2002) Rapid movement of a Heliconius hybrid zone: evidence for phase III of Wright's shifting balance theory? Evolution, 56, 19921998.
  • Chamberlain NL, Hill RI, Kapan DD, Kronforst MR (2009) Polymorphic butterfly reveals the missing link in ecological speciation. Science, 326, 847850.
  • Counterman BA, Araujo-Perez F, Hines HM et al. (2010) Genomic hotspots for adaptation: the population genetics of Müllerian mimicry in Heliconius erato. PLoS Genetics, 6, e1000796.
  • Heliconius Genome Consortium (2012) Butterfly genome reveals promiscuous exchange of mimicry adaptations among species. Nature (London), 487, 9498.
  • Hines HM, Counterman BA, Papa R et al. (2011) Contrasted modes of evolution in the same genome: wing patterning genes redefine the mimetic history of Heliconius butterflies. Proceedings of the National Academy of Sciences of the United States of America, 108, 1966619671.
  • Jiggins CD, McMillan WO, King P, Mallet J (1997) The maintenance of species differences across a Heliconius hybrid zone. Heredity, 79, 495505.
  • Jiggins CD, Naisbit RE, Coe RL, Mallet J (2001) Reproductive isolation caused by colour pattern mimicry. Nature (London), 411, 302305.
  • Linares M (1997) The ghost of mimicry past: laboratory reconstitution of an extinct butterfly ‘race’. Heredity, 78, 628635.
  • Mallet J, Barton N, Lamas G et al. (1990) Estimates of selection and gene flow from measures of cline width and linkage disequilibrium in Heliconius hybrid zones. Genetics, 124, 921936.
  • Mallet J, Beltrán M, Neukirchen W, Linares M (2007) Natural hybridization in heliconiine butterflies: the species boundary as a continuum. BMC Evolutionary Biology, 7, 28.
  • Mavárez J, Salazar C, Bermingham E et al. (2006) Speciation by hybridization in Heliconius butterflies. Nature (London), 441, 868871.
  • McMillan WO, Jiggins CD, Mallet J (1997) What initiates speciation in passion-vine butterflies? Proceedings of the National Academy of Sciences of the United States of America, 94, 86288633.
  • Müller F (1879) Ituna and Thyridia; a remarkable case of mimicry in butterflies. Proceedings of the Entomological Society of London, 1879, xxxxix.
  • Nadeau NJ, Whibley AC, Jones RT et al. (2012) Evidence for genomic islands of divergence among hybridizing species and subspecies of Heliconius butterflies obtained by large-scale targeted sequencing. Philosophical Transactions of the Royal Society B: Biological Sciences, 367, 343353.
  • Rosser NS (2012) Speciation and biogeography of heliconiine butterflies. PhD Thesis, University College London, UK.
  • Rosser N, Phillimore AB, Huertas B, Willmott KR, Mallet J (2012) Testing historical explanations for gradients in species richness in heliconiine butterflies of tropical America. Biological Journal of the Linnean Society, 105, 479497.