| Subfamily ERISTALINAE | | | |
| Tribe Brachyopini | | | |
| Subtribe Brachyopina | | | |
| Orthonevra | nitida | Wavy Mucksucker | |
| Tribe Cerioidini | | | |
| Ceriana | abbreviata | Northern Wasp Fly | |
| Tribe Eristalini | | | |
| Subtribe Eristalina | | | |
| Eristalinus | aeneus | Common Lagoon Fly | |
| Eristalis | anthophorina | Orange-spotted Drone Fly | |
| Eristalis | arbustorum | European Drone Fly | I; strongly associated with farms on MV |
| Eristalis | dimidiata | Black-shouldered Drone Fly | |
| Eristalis | saxorum | Blue-polished Drone Fly | One record. |
| Eristalis | tenax | Common Drone Fly | I |
| Eristalis | transversa | Transverse-banded Drone Fly | |
| Palpada | vinetorum | Northern Plushback | One record. |
| Subtribe Helophilina | | | |
| Eurimyia | stipata | Long-nosed Swamp Fly | |
| Helophilus | fasciatus | Narrow-headed Marsh Fly | Common |
| Mallota | bautias | Bare-eyed Mimic Fly | |
| Mallota | posticata | Hairy-eyed Mimic Fly | |
| Parhelophilus | integer | Shiny Bog Fly | |
| Polydontomyia | curvipes | Dimorphic Sickleleg | |
| Tribe Merodontini | | | |
| Eumerus | sp. | | |
| Merodon | equestris | Narcissus Bulb Fly | I; variable in coloration |
| Tribe Milesiini | | | |
| Subtribe Blerina | | | |
| Blera | analis | Orange-tailed Wood Fly | |
| Somula | decora | Spotted Wood Fly | |
| Subtribe Milesiina | | | |
| Milesia | virginiensis | Virginia Giant | |
| Spilomyia | alcimus | Broad-banded Hornet Fly | |
| Spilomyia | longicornis | Eastern Hornet Fly | |
| Subtribe Sericomyiina | | | |
| Sericomyia | chrysotoxoides | Oblique-banded Pond Fly | |
| Teuchocnemis | lituratus | Black Spur Fly | |
| Subtribe Tropiniina | | | |
| Syritta | pipiens | Common Compost Fly | I; widespread and abundant |
| Tropidia | albistylum | | |
| Subtribe Xylotina | | | |
| Brachypalpus | oarus | Eastern Catkin Fly | |
| Chalcosyrphus | chalybeus | Violet Leaf Walker | |
| Chalcosyrphus | libo | Long-haired Leaf Walker | |
| Chalcosyrphus | piger | Short-haired Leaf Walker | |
| Tribe Rhingiini | | | |
| Subtribe Cheilosiina | | | |
| Cheilosia | | Blacklets | |
| Ferdinandea | buccata | Common Copperback | |
| Subfamily MICRODONTINAE | | | |
| Tribe Microdontini | | | |
| Microdon | fulgens | Rainbow Ant Fly | One observation in iNaturalist |
| Microdon | sp. | | One observation in iNaturalist, probably subgenus Microdon |
| Subfamily SYRPHINAE | | | |
| Tribe Bacchini | | | |
| Platycheirus | quadratus | Meadow Sedgesitter | |
| Tribe Melanostomini | | | |
| Melanostoma | mellinum | Variable Duskyface | |
| Tribe Paragini | | | |
| Paragus | haemorrhous | Black-backed Grass Skimmer | |
| Tribe Syrphini | | | |
| Allograpta | obliqua | Oblique Stripetail | |
| Epistrophella | emarginata | Slender Smoothtail | |
| Eupeodes | americanus complex | Long-tailed Aphideater/Short-tailed Aphideater | |
| Paragus | haemorrhous | | |
| Parasyrphus | sp. | Bristleside Fly | |
| Sphaerophoria | contigua | Tufted Globetail | |
| Sphaerophoria | philanthus | Black-footed Globetail | |
| Syrphus | rectus | Yellow-legged Flower Fly | |
| Syrphus | torvus | Hairy-eyed Flower Fly | |
| Tribe Toxomerini | | | |
| Toxomerus | geminatus | Eastern Calligrapher | Abundant |
| Toxomerus | marginatus | Margined Calligrapher | Abundant |
| Toxomerus | politus | Maize Calligrapher | |
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