Heliconius cydno pachinusMargarita Beltran and Andrew V. Z. Brower
This close relative of Heliconius cydno is endemic to the Pacific slope of Costa Rica and western Panama. It is involved in Müllerian mimicry with H. hewitsonii.
Adult H. pachinus can be distinguished from mimetic H. hewitsonii by the proximal yellow forewing band. In H. pachinus, this band is entirely beyond the end of the discal cell, while in H. hewitsonii, the yellow band cuts through the distal end of the discal cell. H. pachinus lacks the brown "forceps" marking on the underside of the hindwing that occurs in H. cydno forms, and instead exhibits rather extensive red basal streaks, another feature it shares in common with its mimic H. hewistonii.
Lamas, G. (ed.) 2004 Atlas of Neotropical Lepidoptera. Checklist: Part 4A Hesperioidea - Papiionoidea. Gainesville: Scientific Publishers/Association of Tropical Lepidoptera.
Correspondence regarding this page should be directed to Margarita Beltran at and Andrew V. Z. Brower at
Page copyright © 2006 and
- First online 18 February 2007
- Content changed 03 June 2007
Citing this page:
Beltran, Margarita and Brower, Andrew V. Z. 2007. Heliconius pachinus http://tolweb.org/Heliconius_pachinus/72254/2007.06.03 in The Tree of Life Web Project, http://tolweb.org/. Heliconius cydno pachinus . Version 03 June 2007 (under construction).