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Parasteatoda (Achaearanea) Culture

The spiders we keep in the lab are arachnid spiders called Parasteatoda tepidariorum (formerly called Achaearanea tepidariorum). They live individually in plastic tubes with Styrofoam stoppers. Single males and females are placed into the same tube for a few days to mate. After mating, an adult female will deposit a cocoon, containing over 100 synchronised embryos, every two to four days. Baby spiders begin spinning webs within a day of hatching.

  adult female   cocoon


adult female. (photo Extavour)


A mated female deposits a cocoon every two or three days.
(photo Extavour)

  cocoon open   open cocoon


Cocoons are easily opened with forceps.
(photo Extavour)


Each cocoon contains 100-200 csynchronised embryos.
(photo Extavour)

  spider brothers   baby spider
  The chorion can be made transparent in order to stage the embryos – these embryos have just formed their germ rudiment. (photo Extavour)   The babies begin to spin webs within 24 hours of hatching.
(photo Extavour)