The cephalic labial gland secretions of two socially parasitic bumblebees Bombus hyperboreus (Alpinobombus) and Bombus inexspectatus (Thoracobombus) question their inquiline strategy

Nicolas Brasero, Baptiste Martinet, Thomas Lecocq, Patrick Lhomme, Paolo Biella, Irena Valterová, Klára Urbanová, Maurizio Cornalba, Heather Hines, Pierre Rasmont

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Social parasitic Hymenopterans have evolved morphological, chemical, and behavioral adaptations to overcome the sophisticated recognition and defense systems of their social host to invade host nests and exploit their worker force. In bumblebees, social parasitism appeared in at least 3 subgenera independently: in the subgenus Psithyrus consisting entirely of parasitic species, in the subgenus Alpinobombus with Bombus hyperboreus, and in the subgenus Thoracobombus with B. inexspectatus. Cuckoo bumblebee males utilize species-specific cephalic labial gland secretions for mating purposes that can impact their inquiline strategy. We performed cephalic labial gland secretions in B. hyperboreus, B. inexspectatus and their hosts. Males of both parasitic species exhibited high species specific levels of cephalic gland secretions, including different main compounds. Our results showed no chemical mimicry in the cephalic gland secretions between inquilines and their host and we did not identify the repellent compounds already known in other cuckoo bumblebees.

Original languageEnglish (US)
Pages (from-to)75-86
Number of pages12
JournalInsect Science
Volume25
Issue number1
DOIs
StatePublished - Feb 1 2018

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All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Agronomy and Crop Science
  • Biochemistry, Genetics and Molecular Biology(all)
  • Insect Science

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