Elemental composition in two water beetles (Dytiscus thianschanicus, Dytiscus persicus) (Dytiscidae: Coleoptera) as revealed by WDXRF spectroscopy.

Elemental composition in two water beetles (Dytiscus thianschanicus, Dytiscus persicus) (Dytiscidae: Coleoptera) as revealed by WDXRF spectroscopy.