the black and orange elytral regions of the aposematic burying beetle Nicrophorus vespillo. The elements are shown in decreasing order of ratios: bars with values > 1 (orange line) represent elemental concentrations higher in the black region, while bars with values < 1 represent ...
whereas the under surfaces (those adhering to the body) are partly orange (see also18); rough measurements of the thickness of the black and orange layers in the elytra ofN. vespilloshow that, depending on their location on the elytra, the thickness of the black layer ranged fromc.0.03 to...