Platyphora

The kind Platyphora gathers tropical species of chrysomèles Phyllophage S . These species are narrowly affiliated with a very restricted number hosts belonging to the one of these six families of plants: the Boraginaceae , Asteraceae , Asclepidaceae , Convolvulaceae , Solanaceae , and Apocynaceae .

These insects are highly coloured and them Aposématisme announces their chemical protection to the predator: they secrete Toxine S accumulated in glands exocrines of the élytre S and Pronotum . Qualitative analyzes identified in defensive secretions of the adults of the Saponine S based on the skeleton beta-amyrine probably present in the sheets of their hosts. Moreover, certain pledged species with the families of plants rich in alkaloids pyrrolizidinic (Not) of type Lycopsamine have a double chemical defense because they also sequester, in addition to the derivatives of beta-amyrine, these Alcaloïde S in their defensive secretions.

See too

Taxonomic references

External bonds

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