According to a new study by Olivier Roux et al in PLoS One, she is spreading pheromones from a previously unknown gland: Abstract: In Oecophylla, an ant genus comprising two territorially dominant arboreal species, workers are known to (1) use anal spots to mark their territories, (2) drag their gaster along the substrate to deposit short-range recruitment trails, and (3) drag the extruded rectal gland along the substrate to deposit the trails used in long-range recruitment. Here we study an overlooked but important marking behavior in which O. longinoda workers first rub the underside of…
Oecophylla longinoda - Weaver Ants St. Lucia, Kwazulu-Natal, South Africa Technical details: Lens: Canon 35mm f2.0 lens on a 12mm extension tube Body: Canon EOS 20D dSLR Flash: Canon MT-24EX twin flash, hand-held for backlighting. Settings: ISO 400, f/13, 1/160 sec
Oecophylla longinoda Go see!