Brown widow spiders are on the move. (Annual ant control issue)

摘要

This article focuses on the biological and behavioural characteristics of the brown widow, Latrodectus geometricus. A brief description based on female colouration of the 5 species of widow spiders known to occur in the USA is given: Latrodectus bishopi, L. geometricus, L. hesperus, L. mactans, and L. various.