Dust and Butterflies

[Chris_Nagano at r1.fws.gov]

Howdy,

We are reviewing the potential adverse effects of a proposed rock quarry on
some listed butterflies that live in the immediate area.  Does anyone have
information on the effect of dust and other particulate-type matter on
caterpillars, e.g. dust clogging spiracles or coating the leaves of
foodplants?  Please reply to me directly at:    Chris_Nagano at fws.gov

s/Chris Nagano
U. S. Fish and Wildlife Service