"Eristalis pertinax" is a European hoverfly, also known as the drone fly. Like "Eristalis tenax", the larva of "E. pertinax" is a rat-tailed maggot and lives in drainage ditches, pools around manure piles, sewage, and similar places containing water badly polluted with organic matter.
Similar species: True Flies
By Sara Sadler
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Uploaded Apr 25, 2015. Captured Apr 21, 2015 14:45 in South Downs National Park, Fairmile Bottom, Arundel, West Sussex BN18, UK.
