Une fourmilière sous une pierre plate, avec au moins un reine (dét. conf. par R. Blatrix)
Tug A WAR with the Spider
The mandibles of Trap-jaw Ants are capable of snapping shut in less than a millisecond (1/1000 sec.), the fastest known reflex action in the entire animal kingdom. With jaws cocked open at 180 degrees, the involuntary snapping action is triggered when special sensory hairs at the base of the mandibles come in contact with potential prey. Trap-jaw Ants can be found in most tropical environments around the world.
Field number NAM2011-186. In farmyard. Photographed by Duncan Robertson.
Wandering on top of a Formica rufa mound.
Kahlschlagfläche neben W_13 Fichtenforst
Det.: Herbert Christian Wagner
maybe F. truncorum - mesosoma of some workers miss blackish patches; some have little redish patches on the head; very hairy
Formica fusca records from Jeju island corresponds to this species. High land species found in altitudes of 1400m and over where the turnover from woods to shrubs occur and open sunny environments are formed. easily distinguished from other fusca groups of South Korea by the locality but other features include:
-silky shining surface (shared only with hayashi)
-standing hairs abundant on gaster (only shared with candida. japonica and not lemani can also have some but not as many)
-few standing hairs on pronotum (shared with candida. the rest can have a hair or two but nt often)
-relatively shorter legs (compared to hayashi&japonica)
-small polygynous queens jet black and with out any pubescence (opposed to japonica&hayashi queens which are with worker like surfaces)
Kahlschlagfläche neben W_13 Fichtenforst
Det.: Herbert Christian Wagner
a group of ants seemed to have caught this weevil, and were all trying to pull it in different directions.