Adults are commonly about 12–18 mm long, with much longer legs.
Fine-art photographic collection
Nephrotoma flavescens
A delicate long-legged fly whose tough, headless-looking larva lives underground among roots.
About this species
Nephrotoma flavescens(Linnaeus, 1758)
Information reviewed15 July 2026
Nephrotoma flavescens is a yellow-and-black cranefly of European grasslands. Adults are short-lived and aerial; the larvae are soil-dwelling leatherjackets that feed around grass roots.
Taxonomy
Animalia · Arthropoda · Insecta · Diptera · Tipulidae · Nephrotoma
Accepted taxon. · checked 2026-07-15
Europe and parts of western AsiaBroad range and selected reference localities — not a complete occurrence map.
Europe and parts of western Asia
Dry grassland, chalk downland, meadows, dunes and open woodland soils.
Adults fly mainly in early to midsummer.
Larvae feed on roots and decaying plant material; adults take little food or nectar.
Solitary.
What makes this species remarkable?
The larva’s head is heavily hardened but telescopes almost completely inside the soft body, creating the illusion of an animal with no head at all.
Its posterior spiracular disc can close around the breathing openings, helping a soil-dwelling larva control water and dirt while still exchanging air.
The species completes its hidden development below ground, then transforms into an impossibly slender adult built mainly for dispersal and reproduction rather than long-term feeding.