Andy Sands / Hunting Wasp (Ectemnius cavifrons) female carrying paralysed hoverfly in flight toward tunnel entrance in rotten log. Hertfordshire, England, UK, July.

Konrad Wothe / Fly (Gymnosoma rotundatum) Bavaria, Germany. June.

Philippe Clement / Parasite fly / tachinid fly (Tachina fera) feeding on nectar from Hogweed (Heracleum sphondylium) in summer, France. August.

Bernard Castelein / Fly (Eriothrix rufomaculata), KLein Schietveld, Brasschaat, Belgium. June

Rod Williams / Ladybird fly (Gymnosoma rotundatum) a rare / localised species Brockley Cemetery, Lewisham, London, England, UK. May.

Andy Sands / Tachnid fly (Phasia hemiptera) male, the female lays its eggs directly onto Forest Bugs and Green Shield Bugs where the larvae live as parasites, Hertfordshire, England, August

Andy Sands / Tachnid fly (Phasia hemiptera) male, the female lays its eggs directly onto Forest Bugs and Green Shield Bugs where the larvae live as parasites, Hertfordshire, England, August

Kim Taylor / Parasite fly (Tachina fera) on Eryngium. Surrey, England, UK, August.

Kim Taylor / Tachinid fly (Dexiosoma caninum). Surrey, England

Nick Upton / Tachinid fly (Nowickia ferox) with worn wings, chalk grassland meadow, Wiltshire, UK, July.

Andy Sands / Tachnid fly (Phyllomya volvulus) Resting on leaf after rain shower, Oxfordshire, England, UK, June

John Abbott / Tachinid or Parasitic fly (Epalpus signifer) flying Travis County, Texas, USA. Controlled conditions. September