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An online resource devoted to North American insects, spiders and their kin, offering identification, images, and information.
Maryland Biodiversity Project - Black-shouldered Drone Fly (Eristalis dimidiata)
Wasps and Beetles and Flies (Oh My!): They're Pollinators and Much More – Arlington Regional Master Naturalists
File: Eristalis dimidiata hi-res stock photography and images - Alamy Maryland Biodiversity Project - Black-shouldered Drone Fly (Eristalis dimidiata) Insect Identification Black-shouldered Drone Fly (Eristalis dimidiata) · iNaturalist Guatemala Black-shouldered Drone Fly (EwA Guide to the Insects and Spiders of the Fells (US)) · iNaturalist Flower Fly (Syrphidae: Eristalis dimidiata) Bee Mimic Taxonomy Syrphidae (Hoverflies or Flower flies) Toronto Wildlife - Hover Flies