SEM of anal end of black garden ant
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SEM of anal end of black garden ant
Scanning electron micrograph (SEM), tinted orange, of the gaster, or anal end, of a black garden ant (Lasius niger), where a jet of formic acid is expelled as a defense against potential attackers. The fringe of hairs surrounding the hole is characteristic of the black ant. This species lives under flat stones at the edges of lawns & paths, feeding on caterpillars, earwigs, woodlice & other ants. It has a close relationship with Aphis fabae, the broad bean aphid, which it milks for a drop of honeydew for additional nourishment. In return the ant protects the aphid by removing nearby eggs of predators such as ladybirds & lace- wings. Magnification: X 145 at 35mm size. Original is BW print Z345/054
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6460367
© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY
Black Garden Ant Gaster Insecta Lasius Niger Milker
EDITORS COMMENTS
This print showcases the intricate details of the anal end of a black garden ant, captured through a scanning electron microscope. Tinted in vibrant orange hues, the image reveals an astonishing defense mechanism employed by these ants against potential attackers - a jet of formic acid expelled from their gaster. Surrounding the tiny hole where this chemical weapon is released, a fringe of delicate hairs adds to the distinctive appearance of this species. Known for its habitat under flat stones at lawn edges and pathways, the black garden ant sustains itself by feeding on caterpillars, earwigs, woodlice, and even other ants. However, it also maintains a unique symbiotic relationship with Aphis fabae - commonly known as the broad bean aphid. In exchange for milking these aphids to obtain drops of honeydew for additional nourishment, the black garden ant diligently protects them by removing nearby eggs laid by predators like ladybirds and lacewings. At 145 times magnification in 35mm size, this mesmerizing photograph offers us an up-close glimpse into nature's fascinating world. It not only highlights the remarkable features and behaviors of these insects but also reminds us of their vital roles within ecosystems as both predator and protector.
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