Syrphidae of New York State explained

Total of 245 species either found or highly expected to be found in New York.

Subfamily ERISTALINAE

Tribe Brachyopini

This tribe contains 8 genera and 31 or likely more species found in New York State

Genera table! Genus!!authority!!common name !!# in N.Y.!! Defining characteristics

Brachyopa	Meigen, 1822	Sapeater Fly	8	Face and scutellum tan to orange or yellow. Last sectionof R4+5 vein shorter than crossvein h.
Chrysogaster	Meigen, 1803	Wrinkleheaded Fly	1	Last section of R4+5 longer than crossvein r-m. Face entirely black. Antennae on lower part of head.
Chrysosyrphus	Sedman, 1965	Wrinkleheaded Fly	1	like Chrysogaster but antennae on upper part of head.
Hammerschmidtia	Schummel, 1834	Logsitter Fly	2	postalar callus, and scutellum with strong bristles. Hind tibia with short strong black spines.
Myolepta	Newman, 1838	Pegleg Fly	3	Front and middle femora with short strong spines near the apex.
Neoascia	Williston, 1886	Fen Fly	3	Small flies with petiolate abdomen, M1 forming a right angle with R4+5.
Orthonevra	Macquart, 1829	Mucksucker Fly	4	flagellum at least twice as long as wide. Eyes with horizontal or meandering lines.
Sphegina	Meigen, 1822	Pufftail Fly	9	Abdomen petiolate. Swollen hind femur with ventral spines.

Genus Chrysogaster

• Chrysogaster antitheus (Walker, 1849) The Short-haired Wrinklehead is a fairly common species.

Genus Chrysosyrphus

• Chrysosyrphus latus ((Loew, 1863) The Variable Wrinklehead is a rare species

Genus Hammerschmidtia

Hammerschmidtia is a Holarctic Genus of hoverflies. The larvae are found in sap under the bark of downed trees.^[1] They appear quite unlike other syrphids, having drab colors and numerous bristles but on closer inspection they do have the general indicators of syrphids in a spurious vein.^[2]

• Hammerschmidtia rufa, The Black-bristled Logsitter is an uncommon species.
• Hammerschmidtia sedmani Pale-bristled Logsitter is a rare species in N.Y.

Genus Myolepta

Three species of Myolepta occur in New York.^[2] Keys and descriptions of this species was made by Fluke and Weems in 1956.^[3] Larvae are described by Rotheray ^[4]

• Myolepta strigilata
• M. nigra
• M. varipes

Genus Neoascia

Neoascia (Williston, 1886)^[5] Fen FliesThese are very small (3.5–5 mm) black and yellow or metallic green flies with a narrow abdomen near the thorax. They occur mainly in damp places around plants. . Neoascia larvae have been recovered from wet manure in farmyards, and decaying vegetation at the edges of ponds. In 1925 Curran reviewed the Genus Neoascia^[6]

• Neoascia metallica (Williston, 1882)^[7] The Double-banded Fen Fly, is a common species.
• Neoascia tenur (Harris, 1780) ^[8] The Black-kneed Fen Fly is a common species that was formerly considered to be only European now considered to be throughout North America and Canada.^[9]
• Neoascia globosa (Walker, 1849)^[10] The Black-margined Fen Fly is a fairly common species.

Genus Orthonevra

Four species Orthonevra (Macquart, 1829) of these small dark metallic flies are found in New York. Sedman divided this genus into two groups, the pictipennis group ^[11] of which N.Y. has O. pictipennis, O. Weemsi and O. pulchella and the Bellula group with O. nitida being found in N.Y. This genus is one of the few where the eyes are ornamented with either horizontal medial lines or meandering lines across the eye. Keys and descriptions have been provided by Sedman.^{[11] [12]}

• Orthonevra nitida (Wiedemann, 1830)^[13] The Wavy mucksucker is a fairly common species.

• Orthonevra pictipennis (Loew, 1863) ^[14] Dusky-veined Mucksucker is an uncommon species.
• Orthonevra pulchella (Williston, 1887) ^[5] The Dusky Mucksucker is a fairly common species.
• Orthonevra weemsi (Sedman, 1966) ^[11] Weems' Mucksucker is a rare species.

Genus Sphegina

These are distinctive small flies with a thin elongate abdomen and enlarged hind femur often with spines and or teeth. The larvae are found under bark in water soaked areas. Rotheray^[15] has described European species and habitats as well as a key to larvae including sphegina and other syrphid genera. Keys to adult American species was provided by Coovert.^[16] New York species can also be found southward especially in the Appalachian Mountains and also north to the New England States.
There are various keys online, Covert 1977^[16] Hull, 1935 and Malloch, 1922

:

name	authority	common name	prevalence	+ Sphegina (Meigen, 1822)
Sphegina brachygaster	Hull, 1935^[17]	Thick-waisted Pufftail	fairly common
Sphegina campanulata	Robertson, 1901^[18]	Orange-horned Pufftail	fairly common
Sphegina flavimana	John Russell Malloch,1922 ^[19]	Tuberculate Pufftail	fairly common
Sphegina flavomaculata	John Russell Malloch,1922	Tooth-legged Pufftail	uncommon
Sphegina keeniana	Williston,1887	Peg-legged pufftail	fairly common
Sphegina lobata	Loew, 1863	Yellow-lobed Pufftail	uncommon
Sphegina lobulifera	John Russell Malloch,1922	Black-lobed Pufftail	uncommon
Sphegina petiolata	Coquillett, 1910^[20]	Long-spined Pufftail	uncommon
Sphegina rufiventris	Loew, 1910	Black-horned pufftail	common

Tribe Callicerini

Genus Callicera

Only one species of this tribe is found in New york in the genus Callicera (Panzer, 1809).

• Callicera erratica (Walker, 1849) ^[10] The Golden Pine Fly is a rare species.

Tribe Cerioidini

Genus Ceriana

Ceriana(Rafinesque, 1815) has but one species in New York.

• Ceriana abbreviata (Loew, 1864) ^[21] The Northern Wasp Fly

Genus Sphiximorpha

Sphiximorpha (Rondani, 1850) is represented by a single rare species in New York.

• Sphiximorpha willistoni (Kahl, 1897) ^[22] Williston's Wasp Fly is a rare species.

Tribe Eristalini

Genus Eristalinus

• Eristalinus aeneus (Scopoli, 1763) The Common Lagoon Fly is fairly common.

Genus Eristalis

New York has an prevalence of Eristalids many of which are striking in color and exhibit mimicry to the bees. The larvae are of the rat-tailed type. Eristalis along with many sister species has the r4+5 vein making a distinct loop towards the rear of the wing.^[9]

Species list

Genus Palpada

• Palpada albifrons (Weidemann 1830) ^[13] The White-faced Plushback is a rare vagrant
• Palpada vinetorum (Fabricius 1799) The Northern Plushback is a fairly common species

Genus	Thorax	Abdomen	Hind tibia	Other	+ Helophilina characteristics
Notes	This table is confined to New York species.
Helophilus, key	Longitudinal stripes	Abdomen oval, with large orange markings	variable	Stigma long
Anasimia, key (as Lejops)	Longitudinal stripes	narrow	variable
Polydontomyia, single species	not striped	slightly narrowed, black with solid yellow-orange behind, all brownish gray in female	arcuate and produced into a long apical spur
Mallota, key ^[23]	not striped, Thick pile	compact and thick pile	without long apical spur	bumblebee mimic
Parhelophilus, Key ^[24]	longitudinal stripes	compact	truncate at apex.	stigma short
Eurimyia, single species	longitudinal stripes	sawtooth yellow spots	without long apical spur, two black rings	face produced into an elongate cone

Genus Eurimyia

• Eurimyia stipata the Long-nosed Swamp Fly.^[25]

Genus Polydontomyia

• Polydontomyia curvipes (Weidemann,1830) ^[13] The Dimorphic Sickleleg is locally common along salt marshes.

Genus Mallota

Large flies that strongly resemble bumblebees.The larvae of, M. cimhiciformis (Fallen) andM. posticata (Fabricius) develop in detritus-containing rot pockets, usuallywet tree holes in upright deciduous trees.^[26]

• Mallota cimbiciformis, (Fallén, 1816) ^[27]
• Mallota bautias Walker 1849 ^[10] The Bare-eyed Mimic is a common species
• Mallota posticata,Fabricius 1805,^[28] The Hairy-eyed Mimic is a common species.

Genus Parhelophilus

Tribe Sericomyiini

This tribe has only one genus

Genus Sericomyia

• Sericomyia chrysotoxoides (Macquart 1842) ^[29] The Oblique-banded Pond Fly is a common species.
• Sericomyia lata (Coquillett 1907) ^[30] The White-spotted Pond Fly is a common species.
• Sericomyia militaria (Walker, 1849) ^[10] The Narrow-banded Pond Fly is a common species.
• Sericomyia transversa (Osburn, 1926)^[31] The Yellow-spotted Pond Fly is an uncommon species.

Tribe Eumerini

Genus Eumerus

• Eumerus funeralis (Meigen, 1822) ^[32] Lesser Bulb Fly is a fairly common species.
• Eumerus strigatus (Fallén, 1817) ^[27] Onion Bulb Fly is a fairly common species.

Genus Merodon

• Merodon equestris (Fabricius, 1794)^[33] The Narcissus Bulb Fly is a fairly common species.

This tribe contains 17 genera with 56 species found in New York

Genera table! name!!authority!!common name !!# in N.Y.!! Defining characteristics

Blera	Billberg, 1820	Wood Fly	7	distinct frontal prominence, face downward and forward
Brachypalpus	Macquart, 1834	Catkin Fly	1	triangular face, thorax with thick yellow pile
Chalcosyrphus	Curran, 1925	Leafwalker	10	slender abdomen, enlarged hind femur, often orange legs.
Criorhina	Meigen, 1822	Bumblefly	2	large bumblebee mimics.
Cynorhinella	Curran, 1922	Longnose Fly	1	small thin black fly with large conical face.
Hadromyia	Williston, 1882	Quicksilver Fly	1	black fly metallic patches on abdomen
Lejota	Wahlberg, 1843	Trunksitter Fly	2	all black fly with distinct frontal prominence and straight face.
Milesia	Latreille, 1804	Giant Flower Flies	1	large yellow and black yellowjacket mimic
Pterallastes	Loew, 1863	Goldenback Fly	1	large fly with bright golden thorax. .
Somula	Macquart, 1847	Wood Fly	1	large fly with distinct antennifer and bright yellow abdominal spots.
Sphecomyia	Latreille, 1829	Yellowjacket Fly	1	long antennae black and yellow striped abdomen.
Spilomyia	Meigen, 1803	Hornet Fly	4	vertical eye stripe, yellow and black thorax and abdomen.
Syritta	Linnaeus, 1758	Compost Fly	1	inflated hind femur with orange spots, abdomen with rounded spots
Temnostoma	Le Peletier & Serville	Falsehorn Fly	7	yellow stripe along transverse suture, abdomen with one or two stripes on each segment.
Teuchocnemis	Osten Sacken, 1876	Spur Fly	2	males with large spur on hind tibia
Tropidia	Meigen, 1822	Thickleg Fly	3	hind femur enlarged with triangular shaped process ventrally
Xylota	Meigen, 1822	Leafwalker	11	slender abdomen, enlarged hind femur, abdomen black or with yellow spots.

Genus Brachypalpus

• Brachypalpus oarus (Walker, 1849) ^[10] The Eastern Catkin Fly is a fairly common species.

thumb|Brachypalpus oarus

Genus Criorhina

• Criorhina verbosa (Walker, 1849) ^[10] The Hairy-cheeked Bumble Fly is an uncommon species.
• Criorhina nigriventris (Walton, 1911) ^[34] The Bare-cheeked Bumble Fly is an uncommon species.

Genus Cynorhinella

Cynorhinella (Curran, 1922) is a rare genus in New York with a single species.

• Cynorhinella longinasus (Shannon, 1924) ^[35] The Eastern Longnose Fly is a rare species.

Genus Hadromyia

Hadromyia (Williston, 1882) a single species in New York

• Hadromyia aepalius (Walker, 1849) ^[10] Sterling Quicksilver Fly is a rare species.

Genus Lejota

Lejota (Róndani, 1857) has two uncommon species in New York.

• Lejota aerea (Loew 1872) The Golden Trunksitter is an uncommon species
• Lejota cyanea (Smith 1912) ^[36] The Cobalt Trunksitter is an uncommon species.

Genus Milesia

Milesia (Latreille, 1804) represented by a single, vivid species.

• Milesia virginiensis (Drury, 1773) The Virginia Giant is an uncommon species.

Genus Pterallastes

Pterallastes (Loew, 1863)

• Pterallastes thoracicus (Loew 1863) ^[14] The Goldenback Fly is an uncommon species.

Genus Somula

Somula (Macquart, 1847) has only two species worldwide, with one in New York.

• Somula decora (Macquart, 1847) The Spotted Wood Fly is an uncommon species.

Genus Sphecomyia

Sphecomyia Latreille, 1829 is a genus of wasp mimics with one species found in New York.

• Sphecomyia vittata (Wiedemann, 1830) ^[13] The Long-horned Yellowjacket is an uncommon species.

Genus Spilomyia

Many species in Spilomyia are wasp mimics with black and yellow patterns and using the black front legs to imitate the wasp antennae.^[37] The eyes on Spilomyia species are a distinctive characteristic which usually display vertical, and irregular stripes or blotches.^[38]

• Spilomyia alcimus (Walker 1849) ^[10] Broad-banded Hornet Fly is an uncommon species.
• Spilomyia fusca (Loew 1864) ^[21] Bald-faced Hornet Fly is a fairly common species.
• Spilomyia longicornis (Loew 1872) Eastern Hornet Fly is an uncommon species
• Spilomyia sayi (Goot, 1964) Four-lined Hornet Fly is a fairly common species.

Genus Syritta

• Syritta pipiens (Linnaeus, 1758) The Common Compost Fly is a very common species.

Genus Teuchocnemis

Teuchocnemis (Osten-Sacken, 1876) species are more commonly found south of New York.

• Teuchocnemis bacuntius (Walker, 1849) ^[10] The Orange Spur Fly is a rare species.
• Teuchocnemis lituratus (Loew, 1863) ^[14] The Black Spur Fly is an uncommon species.

Genus Tropidia

• Tropidia albistylum (Macquart, 1847) The Yellow-thighed Thickleg Fly is a rare species
• Tropidia calcarata (Williston, 1887) ^[5] The Lily-loving Thickleg Fly is a rare species.
• Tropidia quadrata (Say, 1824) ^[39] The Common Thickleg Fly is a common species.

Genus Xylota

Tribe Rhingiini

This tribe contains 5 genera and 8 species found in New York State

Notes and References

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4. Rotheray . G.E. . 1993 . Colour Guide to Hoverfly Larvae (Diptera, Syrphidae) in Britain and Europe . Diperists Digest . 9 . 155 .
5. Williston. S. W.. Synopsis of the North American Syrphidae.. Bulletin of the United States National Museum. 1887. 31. xxx + 335. 1 July 2015.
6. Curran . C.H. . 1925 . Revision of the Genus Neoascia . Proc. Ent. Soc. Wash. . 27 . 51–62 .
7. Williston . Samuel Wendell . Contribution to a monograph of the North American Syrphidae . Proc. Amer. Philos. Soc. . 1882 . 20 . 112 . 299–332 . 23 July 2021.
8. Book: Harris . M. . An exposition of English insects . Decads III, IV. 1780 . Robson Co. . London . 73–99, 100–138, pls. 21–30, 31–40 . 16 July 2021.
9. Book: Skevington . J.H. . Locke . M.M. . Young . A.D. . Moran . K. . Crins . W.J. . Marshall . S.A . Field Guide to the Flower Flies of Northeastern North America . 2019 . Princeton University Press . Princeton, New Jersey . 9780691189406 . 512 . First. Princeton Field Guides .
10. Book: Walker. F.. List of the specimens of dipterous insects in the collection of the British Museum. Part III. 1849. British Museum (Natural History). London. 485–687.
11. Sedman . Y. S. . 1966 . The Chrysogaster (Orthonevra) pictipennis group in North America . Proceedings of the Entomological Society of Washington . 68 . 185–194 .
12. Sedman . Yale S . 1964 . The Chrysogaster (Orthonevra) Bellula Group In North America . Proceedings of the Entomological Society of Washington . 66 . 169–201 .
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