Some lifecycle questions about the Silvery Blue
tthomas at nrcan.gc.ca
Fri May 29 12:50:17 EDT 1998
Roger Kuhlman wrote
"Paul Opler's Eastern Butterfly Guide says that the larval food of
> Silvery Blue (Glaucopsyche lygdamus) are vetches. Does the butterfly
> have a preference among vetches or does it vary geographically? Someone
> told me that the butterfly prefers purple vetch in SE Michigan. Is this
> Also how does the Silvery Blue spend the winter? As eggs, caterpillars,
> or in a cacoon. I would to observe some feeding caterpillars."
Last year I collected larvae on sweet white clover (Melilotus alba)
and successfully fed them to pupa. I overwintered them underground. Dug them
up earlier this year. They emerged last week and were released.
This was in Fredericton, New Brunswick, Canada.
More information about the Leps-l