Ummidia aedificatoria explained

Ummidia aedificatoria is a species of trap-door spider found in Portugal, Spain and Morocco.^[1] It builds a shallow silk-lined trapdoor burrow, similar to those of U. algeriana and U. picea.^[2] Only three female specimens have been positively identified, all ranging from 18 to 29 millimeters in length.^[3]

Notes and References

1. Web site: Ummidia aedificatoria. World Spider Catalog. 13 May 2018.
2. Westwood. J. O.. 1840. Observations on the species of spiders which inhabit cylindrical tubes covered by a moveable trap-door. Transactions of the Entomological Society of London. 3. 170–182.
3. Decae. A. E.. 2010. The genus Ummidia Thorell 1875 in the western Mediterranean, a review (Araneae: Mygalomorphae: Ctenizidae). Journal of Arachnology. 38. 328–340.