Lucas Bustamante / Brush footed butterfly (Lycorea sp.) caterpillar with parasitic wasp cocoons on silk threads, Yasuni National Park, Orellana, Ecuador.

Solvin Zankl / Gall wasp (Cynips quercusfolii) emerging from the oak gall. Germany, October.

John Abbott / Ichneumon wasp (Compsocryptus sp.?) in flight, Williamson county, Texas, USA, November

Nick Upton / Ichneumon Wasp (Ichneumonidae) with antenna upright, on leaf. Wiltshire garden, UK, May.

Andy Sands / Ichneumon wasp (Rhyssa persuasoria) one of the largest British wasps, at rest on Dock leaf, UK, Captive

Wild Wonders of Europe / Ziegler / Parasitoid wasp (Ichneumonidae) carrying a large paralysed caterpillar to its nesting hole, The Peloponnese, Greece, May 2009

PREMAPHOTOS / Pupae of parasitic wasp {Braconidae family} on hawkmoth caterpillar host, Peru, South America

MYN / Joao P. Burini / Parasitoid wasp (Ichneumonidae) from urban environment, Sao Lourenço, Minas Gerais, Brazil. Meetyourneighbours.net project.

MYN / Joao P. Burini / Parasitoid wasp (Ichneumonidae) Atlantic forest , Itatiaia National Park, Brazil. Meetyourneighbours.net project.

Heather Angel / Parasitic wasp (Gasteruption assectator) nectaring on Common rue (Ruta graveolens). Surrey, England, UK. July.

Heather Angel / Chalcid wasp (Gasteruption jaculator) nectaring on Yarrow (Achillea millefolium) cultivar, picking up pollen on legs and head. Long ovipositor used to lays eggs inside solitary bee nests. In garden, S...

Thomas Marent / Fungus (Ophiocordycipitaceae) which parasitized and killed wasp, Tatama National Park, Colombia