{{Short description|Genus of flies}} {{Automatic taxobox | image = Eristalis September 2007-1.jpg | image_caption = Common drone fly (''Eristalis tenax'') on the flowers of a common lantana (''Lantana camara'') | image2 = Eristalis_GBIF_observation_distribution.png | image2_alt = A map showing the global distribution of Eristalis species, where darker red hexagons mean there's a higher abundance of observations | image2_caption = Global distribution of ''Eristalis'' species observations produced from GBIF observations | display_parents = 3 | taxon = Eristalis | authority = Latreille, 1804 | type_species = ''Musca tenax'' | type_species_authority = Linnaeus, 1758 | subdivision_ranks = Subgenera | subdivision = *''Eoseristalis'' {{small|Kanervo, 1938}} *''Eristalis'' {{small|Latreille, 1804}} | synonyms = *''Elophilus'' {{small|Meigen, 1803,}} *''Eristaloides'' {{small|Rondani, 1845}} *''Eristalomya'' {{small|Rondani, 1857}} *''Eristalomyia'' {{small|Verrall, 1882}} *''Helophilus'' {{small|Leach, 1817}} *''Tubifera'' {{small|Meigen, 1800}} | synonyms_ref = <ref name="Stubbs">{{cite book |last=Stubbs |first=Alan E. |author2=Falk, Steven J |title=British Hoverflies: An Illustrated Identification Guide |edition=2nd |year=1983 |publisher=British Entomological and Natural History Society |location=London |isbn=1-899935-03-7 |pages=253, xvpp }}</ref> }} [[File:Eristalis arbustorum m1.JPG|thumb|250px|European drone fly (''Eristalis arbustorum'') on a leaf]] [[File:Eristalis dimidiata female.jpg|thumb|Black-shouldered drone fly (''Eristalis dimidiata'') female]]
'''''Eristalis''''' is a large genus of hoverflies, family Syrphidae, in the order Diptera. Several species are known as '''drone flies''' (or droneflies) because they bear a resemblance to honeybee drones.
Drone flies and their relatives are fairly common generalist pollinators,<ref>{{Cite journal |doi=10.1111/plb.12328|title=Competition for pollinators and intra-communal spectral dissimilarity of flowers|journal=Plant Biology|pages=56–62|year=2015|last1=Van Der Kooi |first1=C. J.|last2=Pen |first2=I.|last3=Staal |first3=M.|last4=Stavenga |first4=D. G.|last5=Elzenga |first5=J. T. M.|url=https://www.researchgate.net/publication/273158762 |pmid=25754608 |volume=18|issue=1|hdl=11370/caee8d0d-9724-4056-9d45-93162a5a7afc|hdl-access=free}}</ref> the larvae of which are aquatic, and breathe through a long, snorkel-like appendage, hence the common name '''rat-tailed maggots'''.<ref name="Stubbs"/>{{r|Thompson97}}
''Eristalis'' is a large genus of around 99 species,<ref name="Thompson2003">{{cite journal |last=Thompson |first=F. Christian |year=2003 |title=''Austalis'', a new genus of flower flies (Diptera: Syrphidae) with revisionary notes on related genera |journal=Zootaxa |volume=246 |pages=1–19 |publisher=Magnolia Press |location=New Zealand |doi=10.11646/zootaxa.246.1.1 |issn=1175-5334 |url=http://www.mapress.com/zootaxa/2003f/zt00246.pdf |format=pdf Adobe/Acobat |access-date=2011-01-28}}</ref> and is subdivided into several subgenera and species groups (''Eristalomyia'', ''Eristalis'', ''Eoseristalis'' etc.).
==Scientific name and grammatical gender== The scientific name was proposed by Pierre André Latreille in 1804. He placed seven species in his new genus, but listed the names as combinations with ''Syrphus'', so it remained unclear what gender he attributed to the name (the gender of the name ''Syrphus'' is masculine). In the two centuries following its publication, ''Eristalis'' was sometimes considered to be of feminine gender, sometimes to be of masculine gender. George Henry Verrall (1901)<ref>Verrall, G.H. (1901). [https://biodiversitylibrary.org/page/18078125 ''A list of British Diptera'': 22]; and, according to Chandler et al., Case 3259 (see there) also in ''British Flies'' vol. 8</ref> assigned its gender as masculine, a choice followed in British literature, and also in Dutch, Polish, Czech, Spanish and Portuguese literature. In several other European languages and in North America, the tradition was to consider it as a feminine word. In 1993 the ''International Commission on Zoological Nomenclature'' placed the name on the Official List, and gave its gender as masculine, without justification for that choice.<ref>ICZN (1993). Opinion 1747. ''Eristalis'' Latreille, 1804, ''Helophilus'' Fabricius, 1805, ''Xylota'' Meigen, 1822 and ''Eumerus'' Meigen, 1822 (Insecta; Diptera): conserved. [https://biodiversitylibrary.org/page/12249685 ''The Bulletin of Zoological Nomenclature'' '''50'''(3): 256–258]</ref> In 2004, Peter Chandler, Andrew Wakeham-Dawson and Angus McCullough submitted an application to confirm the gender of ''Eristalis'' as feminine.<ref>Chandler, P.J., Wakeham-Dawson, A. & McCullough, A. (2004). Case 3259. ''Eristalis'' Latreille, 1804 (Insecta: Diptera): proposed confirmation that the gender is feminine; ''Musca nemorum'' Linnaeus, 1758, ''M. arbustorum'' Linnaeus, 1758 and ''M. horticola'' De Geer, 1776 (currently ''Eristalis nemorum'', ''E. arbustorum'' and ''E. horticola''): proposed conservation of usage of the specific names by designation of neotypes. [https://biodiversitylibrary.org/page/34353951 ''The bulletin of Zoological Nomenclature'' '''61'''(4): 241–244]</ref> They referred to ''ICZN'' Art. 30.1.1, which states that a name in Latin form takes the gender given for that word in standard Latin dictionaries.<ref>''International Code of Zoological Nomenclature'' [http://www.nhm.ac.uk/hosted-sites/iczn/code/includes/page.jsp?article=30&nfv=#1 Art. 30.1.1]</ref> In ''Composition of Scientific Words'' by R.W. Brown (1954), "eristalis" is listed as a feminine word that refers to an unknown precious stone. The request of Chandler et al. was granted less than two years after submission.<ref>{{aut|ICZN}} (2006). Opinion 2153 (Case 3259). ''Eristalis'' Latreille, 1804 (Insecta: Diptera): confirmation that the gender is feminine; ''Musca nemorum'' Linnaeus, 1758, ''M. arbustorum'' Linnaeus, 1758 and ''M. horticola'' De Geer, 1776 (currently ''Eristalis nemorum'', ''E. arbustorum'' and ''E. horticola''): usage of the specific names conserved by designation of neotypes. [https://biodiversitylibrary.org/page/34353034 ''The Bulletin of Zoological Nomenclature'' '''63'''(2): 146–147]</ref> As of 2006, ''Eristalis'' is officially a word of feminine gender.
==Identification== For terms see Morphology of Diptera.
As a true fly, the species of the genus ''Eristalis'' have a single pair of wings and a pair of halteres. As a member of the family Syrphidae, ''Eristalis'' have a spurious vein in the wing. Defined by Latreille in 1804, ''Eristalis'' was restricted by Meigen in 1882 to those species with a sinuate vein R<small>4+5</small> and petiolate cell r<small>1</small>.<ref>{{cite journal |last=Thompson |first=F. Christian |year=1997 |title=Revision Of The Eristalis Flower Flies (Diptera: Syrphidae) Of The Americas South Of The United States |url=https://www.biodiversitylibrary.org/item/54855#page/230/mode/1up |journal=Entomological Society of Washington |volume=99 |pages=}}</ref> thumb Since the origin of the genus ''Eristalis'', many genera have been added that refine the description of Latreille such as ''Eristalinus'', ''Meromarcrus, Palpada, Helophilus'' etc. The subtribe Eristalina has been established to contain these genera. Now it is generally accepted as those which have vein R<small>2+3</small> sinuate, cell r<small>1</small> usually petiolate and metafemur with basolateral setose patch. With the addition of the following criteria: anepimeron with triangular portion bare, katepimeron pilose, meron bare posteroventrally, without pile anterior or ventral to metathoracic spiracle, eye pilose.{{Citation needed|date=June 2023}}
==Larvae== The larvae of Eristalini are aquatic and of the long-tailed type. Those of ''Eristalis'' are very commonly found breeding in putrid or stagnant water or in moist excrement, and are called "rat-tailed maggots" or "mousies".<ref>{{cite book |last1=Wirth |first1=W.W. |title=Family Syrphidae. In A Catalog of the Diptera of America north of Mexico |date=1965 |publisher=United States Department of Agriculture |location=Washington, D.C., U.S.A. |pages=557–625}}</ref> thumb|Larva of an ''Eristalis'' species, showing the 'rat tail'.
The "tail" is actually an extendable breathing tube often used to extend above the waterline. This tube allows the larvae to live in oxygen-depleted water such as sewage and stagnant pools where most other larvae cannot exist. Rat tailed larvae also exploit wet mud, manure and moist rotting vegetation. Many species of ''Eristalis'' remain unknown.<ref> {{cite journal |last= Rotheray |first= G.E. |year= 1993 |title= Colour Guide to Hoverfly Larvae (Diptera, Syrphidae) in Britain and Europe |journal= Diperists Digest |volume= Special Edition |pages= |url=https://diptera.info/downloads/df_1_9_Colour_Guide_to%20Hoverfly_Larvae.pdf }}</ref> Working in areas where larvae are likely to be found (e.g. manure pits, sewage seepage and stagnant pools) is difficult and rearing the larvae to adults is even more so. Basic information on many species of ''Eristalis'' remain to be discovered.{{Citation needed|date=June 2023}}
== Pollination == [[File:Female Eristalis tenax.webm|thumb|thumbtime=121|A female common drone fly on Zinnia. A portion shown in close-up played at one-tenth place.]] Adults of ''Eristalis'' species such as the common drone fly (''E. tenax)'' and the orange-legged drone fly (''E. flavipes'') are pollen and nectar feeders with hairy bodies capable of picking up and transferring pollen, and may act as keystone pollinators in some systems.<ref>{{Cite web |last=Wojcik |first=Vicki |title=Drone Flies |url=https://www.fs.usda.gov/wildflowers/pollinators/pollinator-of-the-month/drone_flies.shtml |url-status=live |archive-url=https://archive.today/20241015013744/https://www.fs.usda.gov/wildflowers/pollinators/pollinator-of-the-month/drone_flies.shtml |archive-date=October 15, 2024 |access-date=October 15, 2024}}</ref> Pollinating ''Eristalis'' species are often generalists, and are known to act as pollinators for common crops such as ''Brassica rapa'', common onion (''Allium cepa''), sweet pepper (''Capsicum annuum''), kiwifruit (''Actinidia deliciosa''), and apples (''Malus domestica'').<ref>{{Cite journal |last1=Jarlan |first1=Arnaud |last2=De Oliveira |first2=Domingos |last3=Gingras |first3=Jean |date=1997-12-01 |title=Pollination by Eristalis tenax (Diptera: Syrphidae) and Seed Set of Greenhouse Sweet Pepper |journal=Journal of Economic Entomology |language=en |volume=90 |issue=6 |pages=1646–1649 |doi=10.1093/jee/90.6.1646 |s2cid=87343003 |issn=1938-291X}}</ref><ref>{{Cite journal |last1=Kamdem |first1=Michel Mathurin |last2=Otomo |first2=Patricks Voua |date=June 2023 |title=Developmental performance of Eristalis tenax larvae (Diptera: Syrphidae): Influence of growth media and yeast addition during captive rearing |journal=Journal of Experimental Zoology Part A: Ecological and Integrative Physiology |language=en |volume=339 |issue=5 |pages=503–513 |doi=10.1002/jez.2696 |pmid=36958945 |bibcode=2023JEZA..339..503K |issn=2471-5638|doi-access=free }}</ref><ref name=":1">{{Cite journal |last1=Upchurch |first1=Annick |last2=Spurr |first2=Cameron J. |last3=Quarrell |first3=Stephen R. |last4=Rowbottom |first4=Raylea M. |last5=Allen |first5=Geoff R. |date=August 2023 |title=Toward optimising reproductive output of Eristalis tenax (Diptera: Syrphidae) for commercial mass rearing systems |journal=Austral Entomology |language=en |volume=62 |issue=3 |pages=360–371 |doi=10.1111/aen.12660 |issn=2052-174X|doi-access=free }}</ref> ''Eristalis'' are tetrachromats, with strong colour differentiation and preferences towards yellow flower colours, compared to trichromatic bees which often prefer blue hues.<ref>{{Cite journal |last1=Ishii |first1=Hiroshi S |last2=Kubota |first2=Masahiro X |last3=Tsujimoto |first3=Shohei G |last4=Kudo |first4=Gaku |date=February 2019 |title=Association between community assemblage of flower colours and pollinator fauna: a comparison between Japanese and New Zealand alpine plant communities |journal=Annals of Botany |volume=123 |issue=3 |pages=533–541 |doi=10.1093/aob/mcy188 |issn=0305-7364 |pmc=6377100 |pmid=30380008}}</ref><ref name=":2">{{Cite journal |last1=Garcia |first1=Jair E. |last2=Hannah |first2=Lea |last3=Shrestha |first3=Mani |last4=Burd |first4=Martin |last5=Dyer |first5=Adrian G. |date=January 2022 |title=Fly pollination drives convergence of flower coloration |url=https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.17696 |journal=New Phytologist |language=en |volume=233 |issue=1 |pages=52–61 |doi=10.1111/nph.17696 |pmid=34460949 |issn=0028-646X}}</ref> On islands where bees are absent, their colour preferences may induce selection for higher proportions of yellow in flowers, and they can be seen as frequent and effective pollinators for plants like moon tree foil (''Medicago citrina'').<ref name=":2" /><ref>{{Cite journal |last1=Pérez-Bañón |first1=C. |last2=Juan |first2=A. |last3=Petanidou |first3=T. |last4=Marcos-García |first4=Ma A. |last5=Crespo |first5=M. B. |date=2003-10-01 |title=The reproductive ecology of Medicago citrina (Font Quer) Greuter (Leguminosae): a bee-pollinated plant in Mediterranean islands where bees are absent |url=https://link.springer.com/article/10.1007/s00606-003-0004-3 |journal=Plant Systematics and Evolution |language=en |volume=241 |issue=1 |pages=29–46 |doi=10.1007/s00606-003-0004-3 |bibcode=2003PSyEv.241...29P |issn=1615-6110|url-access=subscription }}</ref> The mobility of hoverflies may aid in long-distance pollen transfer, facilitating gene flow between unconnected plant populations.<ref>{{Cite journal |last1=Doyle |first1=Toby |last2=Hawkes |first2=Will L. S. |last3=Massy |first3=Richard |last4=Powney |first4=Gary D. |last5=Menz |first5=Myles H. M. |last6=Wotton |first6=Karl R. |date=2020-05-27 |title=Pollination by hoverflies in the Anthropocene |journal=Proceedings of the Royal Society B: Biological Sciences |language=en |volume=287 |issue=1927 |article-number=20200508 |doi=10.1098/rspb.2020.0508 |issn=0962-8452 |pmc=7287354 |pmid=32429807}}</ref>
Some species, particularly ''E. tenax,'' have been suggested as candidates for a managed pollination alternative to European honey bees (''Apis mellifera'') due to their similar pollination efficacies, abundance, wide distribution, flight range, behavioural plasticity, and high reproductive success.<ref name=":1" /><ref name=":3">{{Cite journal |last1=Howlett |first1=Brad G. |last2=Gee |first2=Megan |date=2019-07-27 |title=The potential management of the drone fly (Eristalis tenax) as a crop pollinator in New Zealand |url=https://journal.nzpps.org/index.php/nzpp/article/view/304/11556 |journal=New Zealand Plant Protection |language=en |volume=72 |pages=221–230 |doi=10.30843/nzpp.2019.72.304 |issn=1179-352X|doi-access=free }}</ref> Multiple generations may be reared per year, and ''Eristalis'' are readily reared in laboratory conditions.<ref>{{Cite journal |last1=Nicholas |first1=Sarah |last2=Thyselius |first2=Malin |last3=Holden |first3=Marissa |last4=Nordström |first4=Karin |date=2018-05-19 |title=Rearing and Long-Term Maintenance of Eristalis tenax Hoverflies for Research Studies |journal=Journal of Visualized Experiments |issue=135 |article-number=57711 |doi=10.3791/57711 |issn=1940-087X |pmc=6101274 |pmid=29863660}}</ref> However, there are challenges concerning commercial mass rearing, retaining numbers, and impacts on non-target species.<ref name=":3" /> Due to their ability to fly long distances, dispersal of captive-reared populations may pose a risk to nearby farm equipment and machinery.<ref name=":3" /> ''Eristalis'' may also act as mechanical vectors for parasites affecting bees, such as ''Crithidia bombi''.<ref>{{Cite journal |last1=Davis |first1=Abby E. |last2=Deutsch |first2=Kaitlin R. |last3=Torres |first3=Alondra M. |last4=Mata Loya |first4=Mesly J. |last5=Cody |first5=Lauren V. |last6=Harte |first6=Emma |last7=Sossa |first7=David |last8=Muñiz |first8=Paige A. |last9=Ng |first9=Wee Hao |last10=McArt |first10=Scott H. |date=2021-08-04 |title=Eristalis flower flies can be mechanical vectors of the common trypanosome bee parasite, Crithidia bombi |journal=Scientific Reports |language=en |volume=11 |issue=1 |page=15852 |doi=10.1038/s41598-021-95323-w |pmid=34349198 |pmc=8338921 |bibcode=2021NatSR..1115852D |issn=2045-2322}}</ref>
== Interactions with humans == The larvae of ''Eristalis'' species may be considered pests where they affect livestock, contaminating feed and affecting electrical supplies due their mass congregations seeking dry sites for pupation.<ref name=":0">{{Cite web |title=EENY 445/IN809: Drone Fly, Rat-Tailed Maggot Eristalis tenax (Linnaeus) (Insecta: Diptera: Syrphidae) |url=https://edis.ifas.ufl.edu/publication/IN809 |url-status=live |archive-url=https://archive.today/20241015014705/https://edis.ifas.ufl.edu/publication/IN809 |archive-date=2024-10-15 |access-date=2024-10-15 |website=Ask IFAS - Powered by EDIS |language=en-US}}</ref> Some species of ''Eristalis'' have been known as a rare cause of myiasis, with larvae capable of surviving gastric fluids upon ingestion. Symptoms of myiasis from ''Eristalis'' species include diffuse abdominal pain and diarrhoea.<ref name=":0" /> Treatment may include anthelmintics such as ivermectin.<ref>{{Cite journal |last1=Desoubeaux |first1=Guillaume |last2=Gaillard |first2=Julien |last3=Borée-Moreau |first3=Diane |last4=Bailly |first4=Éric |last5=Andres |first5=Christian R |last6=Chandenier |first6=Jacques |date=April 2014 |title=Gastrointestinal symptoms resembling ulcerative proctitis caused by larvae of the drone fly Eristalis tenax |journal=Pathogens and Global Health |volume=108 |issue=3 |pages=158–163 |doi=10.1179/2047773214Y.0000000135 |issn=2047-7724 |pmc=4083178 |pmid=24766340}}</ref><ref>{{Cite journal |last=Tolba |first=Mona Mohamed |date=2020 |title=Eristalis tenax intestinal myiasis: An electron microscope study |journal=Tropical Parasitology |volume=10 |issue=1 |pages=39–43 |doi=10.4103/tp.TP_40_19 |doi-broken-date=12 July 2025 |doi-access=free |issn=2229-5070 |pmc=7365507 |pmid=32775291}}</ref>
==Species== {{Incomplete list|date=January 2009}} {{Columns-list|colwidth=30em| *''Eristalis abusiva'' {{small|Collin, 1931}} *''Eristalis agrorum'' {{small|(Wiedemann, 1830)}} *''Eristalis alleni'' {{small|Thompson, 1997}}<ref name="Thompson97"/> – Paul Allen's flower fly *''Eristalis alpina'' {{small|(Panzer, 1798)}} *''Eristalis anthophorina'' {{small|(Fallén, 1817)}} – orange-spotted drone fly{{r|skev2019}} *''Eristalis arbustorum'' {{small|(Linnaeus, 1758)}} – European drone fly{{r|skev2019}} *''Eristalis azorensis'' {{small|Bot, Hofstee & Mengual, 2025}}<ref name="Bot">{{cite journal |last1=Bot |first1=Sander |last2=Hofstee |first2=Lenze |last3=Mengual |first3=Ximo |title=Updated checklist of hover flies (Diptera: Syrphidae) of the Azores archipelago with taxonomic notes and the description of a new species, ''Eristalis azorensis'' sp. nov. |journal=Acta Entomologica Musei Nationalis Pragae |date=2025-09-18 |volume=65 |issue=1 |page=217 |doi=10.37520/aemnp.2025.017 |doi-access=free |issn=0374-1036}}</ref> *''Eristalis barda'' {{small|(Say, 1829)}} *''Eristalis basilaris'' {{small|Macquart, 1834}} *''Eristalis bellardii'' {{small|Jaennicke, 1867}}<ref name="Thompson97"/> – Mexican mountain drone fly *''Eristalis bogotensis'' {{small|Macquart, 1842}}<ref name="Thompson97"/> *''Eristalis brousii'' {{small|Williston, 1882}} – hourglass drone fly{{r|skev2019}} *''Eristalis calida'' {{small|Walker, 1849}} *''Eristalis cerealis'' {{small|Fabricius, 1805}} *''Eristalis circe'' {{small|Williston, 1891}}<ref name="Thompson97"/> *''Eristalis corymbus'' {{small|Violovitsh, 1975}} *''Eristalis croceimaculata'' {{small|Jacobs, 1900}}<ref name="Thompson97"/><ref name="Wakeham-Dawson">{{cite journal|last=Wakeham-Dawson|first=A. |author2=Jones, A.G. |author3=Thompson, F.C.|year=2009|title=Falkland Islands Syrphidae (Diptera)|journal=Dipterists Digest|volume=16|issue=1|series=Second series|pages=65–71 |publisher=Dipterists Forum|issn=0953-7260 |location=UK}}</ref> *''Eristalis cryptarum'' {{small|(Fabricius, 1794)}} – bog-dwelling drone fly{{r|skev2019}} *''Eristalis deserta'' {{small|Violovitsh, 1977}} *''Eristalis dimidiata'' {{small|(Wiedemann, 1830)}} – black-shouldered drone fly{{r|skev2019}} *''Eristalis dubia'' {{small|Macquart, 1834}} *''Eristalis fenestrata'' {{small|de Meijere, 1908}} *''Eristalis flavipes'' {{small|Walker, 1849}} – orange-legged drone fly{{r|skev2019}} *''Eristalis fraterculus'' {{small|(Zetterstedt, 1838)}} – black-spotted drone fly{{r|skev2019}} *''Eristalis gatesi'' {{small|Thompson, 1997}}<ref name="Thompson97"/> – Bill Gates' flower fly *''Eristalis gomonojunovae'' {{small|Violovitsh, 1977}} – Arctic drone fly{{r|skev2019}} *''Eristalis hirta'' {{small|Loew, 1866}} – black-footed drone fly{{r|skev2019}} *''Eristalis horticola'' {{small|(De Geer, 1776)}} *''Eristalis intricaria'' {{small|(Linnaeus, 1758)}} *''Eristalis japonica'' {{small|van der Goot, 1964}} *''Eristalis jugorum'' {{small|Egger, 1858}} *''Eristalis kamtshatica'' {{small|Violovitsh, 1977}} *''Eristalis katoi'' {{small|Shiraki, 1968}} *''Eristalis kyokoae'' {{small|Kimura, 1986}} *''Eristalis latifrons'' {{small|Zetterstedt, 1843}} *''Eristalis lunata'' {{small|de Meijere, 1908, 1776}} *''Eristalis marfax'' {{small|Curran, 1947}} *''Eristalis nemorum'' {{small|(Linnaeus, 1758)}} – orange-spined drone fly{{r|skev2019}} *''Eristalis obscura'' {{small|(Loew, 1866)}} – dusty drone fly{{r|skev2019}} *''Eristalis oestracea'' {{small|(Linnaeus, 1758)}} – orange-tailed drone fly{{r|skev2019}} *''Eristalis pacifica'' {{small|Violovitsh, 1977}} *''Eristalis parens'' {{small|Bigot, 1880}} *''Eristalis pertinax'' {{small|(Scopoli, 1763)}} *''Eristalis persa'' {{small|Williston, 1891}}<ref name="Thompson97"/> *''Eristalis picea'' {{small|(Fallén, 1817)}} *''Eristalis precipua'' {{small|Williston, 1888}} *''Eristalis pseudorupium'' {{small|Kanervo, 1938}} *''Eristalis rabida'' {{small|Violovitsh, 1977}} *''Eristalis reflugens'' {{small|Doleschall, 1858}} *''Eristalis rossica'' {{small|Stackelberg 1958}} *''Eristalis rupium'' {{small|Fabricius, 1805}} – spot-winged drone fly{{r|skev2019}} *''Eristalis saphirina'' {{small|Bigot, 1880}} *''Eristalis saxorum'' {{small|Wiedemann, 1830}} – blue-polished drone fly{{r|skev2019}} *''Eristalis semicirculus'' {{small|Walker, 1852}} *''Eristalis similis'' {{small|(Fallén, 1817)}} *''Eristalis stipator'' {{small|Osten Sacken, 1877}}<ref name="Thompson97"/> – yellow-shouldered drone fly{{r|skev2019}} *''Eristalis tammensis'' {{small|Bagatshanova, 1980}} *''Eristalis tenax'' {{small|(Linnaeus, 1758)}} – common drone fly{{r|skev2019}} *''Eristalis tibetica'' {{small|Violovitsh, 1976}} *''Eristalis transversa'' {{small|(Wiedemann, 1830)}} – transverse-banded drone fly{{r|skev2019}} *''Eristalis tricolor'' {{small|Bigot, 1880}} *''Eristalis tundrarum'' {{small|Frey, 1932}} *''Eristalis vallei'' {{small|(Kanervo, 1934)}} *''Eristalis vitripennis'' {{small|(Strobl, 1893)}}
}}
==Gallery== {{Gallery |Eristalis.abusiva2.-.lindsey.jpg|''Eristalis abusiva'' female |Hoverfly August 2007-9.jpg|''Eristalis arbustorum'' female |Eristalis.horticola.male1.jpg|''Eristalis horticola'' male |Eristalis interruptus female 1.jpg|''Eristalis nemorum'' female |Eristalis.intricaria.male2.jpg|''Eristalis intricaria'' male |Eristalis.jugorum.-.lindsey.jpg|''Eristalis picea'' male |Eristalis pertinax01.jpg|''Eristalis pertinax'' female |Eristalis. tenax.male.jpg|''Eristalis tenax'' male |Eristalis tenax larva close.JPG|''Eristalis tenax'' larva }}
==References== {{Reflist|refs= <ref name=skev2019>{{cite book |last1=Skevington |first1=Jeffrey H. |first2=Michelle M. |last2=Locke |first3=Andrew D. |last3=Young |first4=Kevin |last4=Moran |first5=William J. |last5=Crins |first6=Stephen A. |last6=Marshall |year=2019 |title=Field Guide to the Flower Flies of Northeastern North America |location=Princeton |isbn=978-0-691-18940-6}}</ref> <ref name="Thompson97">{{cite journal|last=Thompson |first=F. Christian|year=1997|title=Revision of the ''Eristalis'' flower flies (Diptera: Syrphidae) of the Americas south of the United States.|journal=Proceedings of the Entomological Society of Washington|volume=99|pages=209–237|publisher=Entomological Society of Washington|location=Washington D.C.|issn=0013-8797|url=http://entomology.si.edu/StaffPages/ThompsonFC/1997_Eristalis.pdf|access-date=2009-06-19|archive-url=https://web.archive.org/web/20090618141156/http://entomology.si.edu/StaffPages/ThompsonFC/1997_Eristalis.pdf|archive-date=18 June 2009}}</ref> }}
{{Taxonbar|from=Q1921685}} {{Authority control}}
Category:Eristalini Category:Hoverfly genera Category:Taxa named by Pierre André Latreille