The 'tail' is the ovipositor and presumably the fly was sensing if the substrate was suitable for oviposition. The group mostly seek out seed heads (often but not always grasses) as a suitable site. A confused fly?
Describe how you intend to use these images and/or audio files and your request will be sent to the author for consideration.
Your request has been successfully submitted to the author for consideration.
2,152,973 sightings of 19,940 species in 6,475 locations from 11,410 contributors
CCA 3.0 | privacy
We acknowledge the Traditional Owners of this land and acknowledge their continuing connection to their culture. We pay our respects to their Elders past and present.