Hover Flies (Syrphid Flies): Syrphidae

Margined calligrapher (Toxomerus marginatus) female (eyes don't touch). dark ones developed in cold weather

margined calligrapher, male (eyes holoptic, touching) "back" (scutellum) of margined calligraphers is not striped. 

margined calligraphers mating, pale ones developed in hot weather. 

eastern calligrapher (Toxomerus geminatus)

eastern calligrapher (Toxomerus geminatus)

common drone fly (Eristalis tenax)

common drone fly

transverse flower fly (Eristalis transversa)

Maize calligrapher (Toxomerus politus)

Black shouldered drone fly (Eristalis dimidiata)

Narrow-headed marsh fly (Helophilus fasciatus)

thick legged hover fly (Syritta pipiens)

eastern hornet fly (Spilomyia longicornis)

Palpada furcata

Gall Midges (Cecidomyiidae)

Goldenrod bunch gall midge: Rhopalomyia solidaginis

goldenrod bunch gall midge

goldenrod bunch gall midge

goldenrod bunch gall midge

goldenrod bunch gall midge

goldentop pedicellate gall midge (Rhopalomyia pedicellata)

goldentop leaf gall midge (Asteromyia euthamiae)

goldenrod carbonifera leaf gall midge

hornbeam leaf gall midge (Dasineura pudibunda)

hornbeam leaf gall midge 

box elder leaf gall midge (Contarinia negundinis)

linden wart gall midge (Contarinia verrucicola)

willow pinecone gall midge (Rabdophaga strobiloides)

maple leaf vein gall midge (Dasineura communis)

Ash petiole gall midge (Dasineura tumidosae)

willow beak gall midge (Rabdophaga rigidae)

oak leaf vein gall midge (Macrodiplosis niveipila)

locust leaf gall midge (Obolodiplosis robiniae)

hickory awn gall midge (Caryomyia subulata)

boneset flower gall midge (Schizomyia eupatoriflorae)

grape midge gall (Vitisiella brevicauda)

Boehmeria stem gall midge (Neolasioptera boehmeria)

Copperleaf stem gall midge (Resseliella globosa)

cherry bud gall midge (Contarinia cerasiserotinae)