Wednesday, September 29, 1999 Published at 16:28 GMT 17:28 UK
Tag tracks life of insects
Tagging the cadis fly will reveal the mystery of its adult life
Scientists at a Welsh university have adapted a tiny tracking device to follow the progress of insects.
The miniaturised electronic tags, which can be fitted to the bodies of live insects, have been developed by the biological sciences department at the University of Wales Aberystwyth.
Project leader Dr John Gee said the tagging device would illuminate scientists on the all-important adult life stage of insects such as the cadis fly.
"We know quite a lot about the early life stages of these insects," he said.
The project team at the university has created tiny diodes which are attached to tags and placed on the stomachs of the cadis flies.
The diodes themselves are made from very fine wire, which is thinner than human hair, and acts as an aerial.
These then reflect the signals from a hand-held detector, explained Dr Gee.
The scale of the tags mean that scientists could theoretically track the movements of the insect world, discovering unknown data.