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#1859 - Euryopis sp. - Ant-eating Spider
From the Greek for 'Having a broad face’. Comb-footed Spiders in the subfamily Hadrotarsinae.
Spiders that lurk on the trunks of trees, or among leaf litter, with an odd posture, waiting for ants and possibly other small insects to wander past, whereupon they’ll rush over to entangle them in silk.
There’s 75 known species in the genus, found in most parts of the world, but they’re generally pretty similar in appearance.
Huntress
(Euryopis funebris with prey)
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Foraging behavior of Euryopis episinoides attacking, killing, and processing the harvester ant. The spider makes a posture at the ant trail and waits until an ant approaches. The ant is attacked by throwing silk from spider spinnerets, followed by biting into the antennae. Once the ant is immobilized, it is dragged away to a secured place where it is consumed. Author Prof. Mgr. Stanislav Pekár, Ph.D., Masaryk University
153 views Aug 11, 2018 An adult female of Euryopis sp. (Menge, 1868) filmed while capturing two worker ants of the genus Messor. Rome, shot in my breeding, in the evening; June - July 2018
Una femmina adulta di Euryopis sp. (Menge, 1868) filmata mentre cattura dueformiche operaie del genere Messor. Roma, girato in allevamento, di sera; giugno - luglio 2018
with help from Google Translate:
“Zoom on a couple of adult (female) teridid spiders of the genus Euryopis (possibly E.episinoides), spiders roughly 3-4 mm long. In the video we initially observe the two specimens competing for an ant (Messor sp.) Already previously captured by one of the two; subsequently one of the two females takes over the other by immobilizing it with its own silk; but without feeding on them as they are spiders that feed exclusively at the expense of ants. After a few minutes, each of the two specimens takes care of its prey, including the specimen that had been attacked a few minutes earlier. Video shot in a peripheral area of San Vito dei Normanni (BR).”
Posts about Euryopis written by 6legs2many
“Last week I had the pleasure of attending the new Ants of the Southwest course at the Southwest Research Station in Arizona, and I thought I’d jump right and share with you my favorite entomological encounter. While black lighting in the desert we happened across a harvester ant nest that was being raided by dozens of small hungry spiders. The spiders would slip inside the nest entrance individually and emerge some time later, dragging worker ant prey. It was pretty impressive to watch, particularly as there was no evidence that the spiders’ raiding was provoking any kind of response from the colony. Harvester ants (or “pogos,” from Pogonomyrmex) are a group of ants with a fairly vicious sting, and the workers dwarfed their tiny spider predators.”
Cobweb spider - Euryopis funebris - Female- Adult - 6mm
