Phasia pusilla is a European species of fly in the family Tachinidae.
Hosts Its larval hosts include species in the families Lygaeidae, Cydnidae, and Anthocoridae.
Distribution British Isles, Belarus, Czech Republic, Hungary, Latvia, Moldova, Poland, Romania, Slovakia, Ukraine, Denmark, Finland, Norway, Sweden, Albania, Bulgaria, Corsica, Croatia, Greece, Italy, Portugal, Serbia, Slovenia, Spain, Turkey, Austria, Belgium, Channel Islands, France, Germany, Netherlands, Switzerland, Japan, Kazakhstan, Iran, Israel, Palestine, Mongolia, Canary Islands, Egypt, Morocco, Russia, Transcaucasia, Pakistan, Kyrgyzstan, China.
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