Intra and interspecific variability of the cephalic labial glands' secretions in male bumblebees: the case of Bombus (Thoracobombus) ruderarius and B. (Thoracobombus) sylvarum [Hymenoptera, Apidae]
Apidologie, 36 1 (2005) 85-96
DOI: https://doi.org/10.1051/apido:2004072