Acta Parasitologica

, Volume 58, Issue 1, pp 105–111

A new genus of the family Hymenolepididae (Cestoda) from Sephanoides sephaniodes (Apodiformes, Trochilidae) in Northern Patagonia (Chile)

  • Vincent C. Widmer
  • Boyko B. Georgiev
  • Jean Mariaux
Original Paper

DOI: 10.2478/s11686-013-0117-y

Cite this article as:
Widmer, V.C., Georgiev, B.B. & Mariaux, J. Acta Parasit. (2013) 58: 105. doi:10.2478/s11686-013-0117-y


A new species of hymenolepidid cestodes from Sephanoides sephaniodes (Trochilidae) found in Chile is described. The most characteristic features of Colibrilepis pusilla gen. nov., sp. nov. are the lack of rostellum, a cirrus sac with a thick-walled distal end (separated by a constriction) and protruding into genital atrium, a thick-walled saccular uterus filling entire median field of the gravid proglottis and the small number of eggs containing thick walled embryophores with polar swellings. Staphylepis is the most similar genus but differs in its apical structure because of the presence of a rudimentary rostellum. Moreover, molecular phylogenetic analyses show that Staphylepis and Colibrilepis are not sister taxa.


Hymenolepididae Hymenolepidinae Cestoda Sephanoides sephaniodes Chile 

Copyright information

© Versita Warsaw and Springer-Verlag Wien 2013

Authors and Affiliations

  • Vincent C. Widmer
    • 1
    • 3
  • Boyko B. Georgiev
    • 2
  • Jean Mariaux
    • 1
  1. 1.Department of InvertebratesNatural History Museum GenevaGeneva 6Switzerland
  2. 2.Institute of Biodiversity and Ecosystem ResearchBulgarian Academy of SciencesSofiaBulgaria
  3. 3.Faculty of Sciences, Department of Genetics and EvolutionGeneva UniversityGeneva 4Switzerland

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