Gonia picea is a Palaearctic species of fly in the family Tachinidae.
Distribution 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.
Hosts The larvae of Cerapteryx graminis, Xestia xanthographa, Staurophora celsia, Mamestra brassicae, Mythimna comma & Polygonia c-album.
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