In North Africa, the genus Mayetiola includes two phytophagous species, namely the Hessian fly Mayetiola destructor (Say, 1817) and the barley stem gall midge Mayetiola hordei (Kieffer, 1909) (Gagne et al.
Morphologically, the two phytophageous species of Mayetiola can be hardly distinguished, but Gagne et al.
Molecular markers allowing an efficient and rapid distinction between the two species of Mayetiola were developed by Mezghani et al.
Karylogical results are used to discuss genetic mechanisms underlying divergence of Mayetiola species.
As the Mayetiola genus is characterized by low chromosome numbers, interspecific polymorphisms in number may be rare, in contrast with some insect genera with high chromosome numbers, where polymorphisms in chromosome numbers have been reported (Rousselet et al.
This hypothesis is supported by the genic variability of both Mayetiola species, with regard to the cytochrome b, ITS1 and ITS2 genes (Mezghani et al.
Hessian fly and barley stem gall midge, two different species of Mayetiola (Diptera: Cecidomyiidae) in Morocco.
Biochemical characterization of sibling species of Mayetiola (Diptera: Cecidomyiidae).