In odonates, female specific color polymorphisms appear to be an evolutionary response to sexual harassment, but we know little about the decision rules males use when searching for variable females. For two sympatric species of Enallagma, we measured male responses to live female variants under field conditions, early and later in the day. In the…
Pseudagrion emarginatum is removed from the synonymy of P. melanicterum. The following synonymies are established: P. coeruleiceps of P. emarginatum and P. angelicum of P. camerunense. The latter, formerly known as Enallagma camerunense, should be removed from the list of threatened African Odonata.