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Diplazon laetatorius · vytis
- Common Hover Fly Parasitoid Wasp
- pięknisk bzygowiec
Diplazon laetatorius is distributed almost all over the world (all continents except Antarctica) and is possibly the hymenoptera species with the largest geographical distribution.In Europe, its distribution extends north to Scandinavia and Iceland.
Diplazon laetatorius parasitizes the eggs and larvae of various hoverflies (~50 species from ~20 genera). The eggs are laid in the host egg or larva. The fully developed parasitic wasp later hatches from the host pupa. The host species include Episyrphus balteatus, Eupeodes corollae.
Head black. Body black with light shoulder stripes. Scutum with large, pearly white spot. First abdominal segment black with more or less extensive, orange-red brightening in the middle – an important diagnostic feature of the species. Subsequent tergites orange-red, then black (often with light rear edges). Ovipositor short, barely visible. Front and middle legs orange. Hind thighs orange. Hind shins very characteristically colored, with four contrasting rings – successively black, white, black and orange. Antennae almost one-colored. Wings transparent; pterostigma bicolored, yellow-black.
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