Gonia picea is a Palaearctic species of fly in the family Tachinidae.
British Isles, Czech Republic, Hungary, Moldova, Poland, Romania, Slovakia, Ukraine, Denmark, Finland, Norway, Sweden, Bulgaria, Croatia, Greece, Italy, Portugal, Serbia, Spain, Turkey, Austria, Belgium, France, Germany, Netherlands, Switzerland, Japan, North Korea, Israel, Palestine, Russia, Transcaucasia, Turkmenistan, China, Taiwan.
The larvae of Cerapteryx graminis, Xestia xanthographa, Staurophora celsia, Mamestra brassicae, Mythimna comma & Polygonia c-album.