Discovery and lectotype designation of (Motschulsky) (Coleoptera, Chrysomelidae, Galerucinae, Alticini).

The lectotype of (Motschulsky, 1845) is designated, described, and illustrated. An illustrated key to eight light-colored species known to occur in the western United States is presented. A brief history of Russian entomological collecting in North America during the first half of 19 century, with specimens preserved in Zoological Museum of Moscow University, Moscow and Zoological Institute, St.

Light Polarization by Biological Nanocoatings.

Light plays paramount functions for living beings in nature. In addition to color, the polarization of light is used by many animals for navigation and communication. In this study, we describe the light polarizing role of special nanostructures coating cuticular surfaces of diverse arthropods.