Striped Slender Robberfly (Leptogaster cylindrica)

One of only two Leptogaster species in the UK, the other being the very similar-looking but scarcer L. guttiventris.

L cylindrica is a relatively common and widespread inhabitant of taller grasslands across Britain, but predominantly in the south.

Its very slight, delicate body and weak flight pattern, keeping low to the ground in tall grass, make this a very tough first-time spot.

Once 'tuned in' however, its presence becomes much more obvious and one to look out for. Note the mating pair in my photo, both hanging from a single blade of grass.

Its hovering cranefly-like flight style is slightly deceptive however, as it catches its preferred prey by suddenly springing to life, with a short spurt of energy, to grab its prey - mostly small flies, aphids, leafhoppers and spiders.

Can be seen between May and August, particularly on calm, sunny days.