The description of the insect as well as the lack of the sting on the site suggested a wasp as
the culprit. By studing one of these insect that has been captured by the patient, it turned
out it wasn’t a Vespula, but a horse fly, the Tabanus bovinus, wich resembles Hymenoptera.
Skin prick test and RAST for Tabanus confirmed the allergology diagnosis.
In conclusion, also Tabanus bovines can cause systemic reaction up to anaphylactic shock.