On the distribution and phenology of Argyrodes fictilium (Araneae, Theridiidae) at its northern limit of North America

Argyrodes fictilium is a rarely collected species whose northern range was thought to be southern Canada. Recent collections in the eastern boreal for ests of Quebec extend its distribution range to the north and suggest that A. fictilium might be found anywhere within the boreal forest tree limit. M ature males collected in May indicate a summer-stenochronous type of phenol ogy.