Males with incomplete thorax stripe:
https://www.inaturalist.org/observations/7413714
Females with incomplete thorax stripe:
https://www.inaturalist.org/observations/15572261
Males with full thorax stripe (I think only S. philanthus identifiable):
https://www.inaturalist.org/observations/15576830
Females with full thorax stripe (I think only S. bifurcata identifiable):
https://www.inaturalist.org/observations/7452079
Good resource:
Vockeroth 1992 Syrphinae of Canada, Alaska, and Greenland: http://esc-sec.ca/wp/wp-content/uploads/2017/03/AAFC_insects_and_arachnids_part_18.pdf
Western female with incomplete stripe: https://www.inaturalist.org/observations/34249225
Eupeodes subgenus Metasyrphus, Syrphus, Epistrophe, others (Didea, Meliscaeva)
It's hard
https://www.inaturalist.org/observations/8593944
https://www.inaturalist.org/observations/8594111
Eupeodes latifasciatus on the east coast is an exception not always having black margins (https://bugguide.net/node/view/1021534/bgimage), and Syrphus opinator on the west coast is an exception having black margins (https://bugguide.net/node/view/268265/bgimage)
https://bugguide.net/node/view/99829/bgimage
If for some crazy reason you want to just look at the difficult ones here's a project for you: https://www.inaturalist.org/projects/tricky-syrphini-from-north-america
Epistrophella
https://bugguide.net/node/view/852268/bgimage
https://bugguide.net/node/view/872187/bgimage
https://bugguide.net/node/view/832923/bgimage
https://bugguide.net/node/view/849752/bgimage
https://bugguide.net/node/view/1274968/bgimage
Parasyrphus
https://bugguide.net/node/view/954145/bgimage
https://bugguide.net/node/view/776694/bgimage
https://bugguide.net/node/view/1618772/bgimage
https://bugguide.net/node/view/882710/bgimage
https://bugguide.net/node/view/1185190/bgimage
https://bugguide.net/node/view/1579935/bgimage
https://bugguide.net/node/view/1658999/bgimage
Some things from BugGuide comments on Epistrophe:
Yellow spots at base of abdomen widen toward margin (always narrow toward margin in Syrphus maybe?)
Edges of yellow bands on abdomen straight rather than curving (except usually a black point in the centre of the first band)
Edges of abdomen very fuzzy
Yellow on abdomen dull/mottled rather than bright yellow (also there is a "dark morph" with grey/brown bands)
https://bugguide.net/node/view/573350/bgimage
https://bugguide.net/node/view/153678/bgimage
https://bugguide.net/node/view/330766/bgimage
https://bugguide.net/node/view/1406410/bgimage
https://www.inaturalist.org/observations/10701332
https://bugguide.net/node/view/1740346/bgimage
E. metcalfi
E. grossulariae
Syrphus knabi has dark antennae and can have wide straight bands, but doesn't have the black triangle to the same extent, (female) leg colouration also different
https://bugguide.net/node/view/330766/bgimage
E. nitidicollis
E. xanthostoma
E. terminalis
Identifying Syrphus
https://www.inaturalist.org/journal/upupa-epops/27969-identifying-syrphus-hover-flies
Eupeodes subgenus Metasyrphus
https://bugguide.net/node/view/1047917/bgimage
https://bugguide.net/node/view/1289558/bgimage
https://bugguide.net/node/view/1718107/bgimage
E. flukei
https://bugguide.net/node/view/1311869/bgpage
E. snowi
https://bugguide.net/node/view/381686/bgimage
E. latifasciatus
Yellow T5?
https://bugguide.net/node/view/219327/bgimage
https://bugguide.net/node/view/1245201/bgimage
https://bugguide.net/node/view/1447146/bgimage
https://bugguide.net/node/view/1502572/bgimage
E. fumipennis
https://bugguide.net/node/view/670978/bgimage
https://bugguide.net/node/view/1698014/bgimage
These have very similar abdomen patterns. Are they separated by head shape?
E. volucris
https://bugguide.net/node/view/35305/bgimage
https://bugguide.net/node/view/94855/bgimage
https://bugguide.net/node/view/338812/bgimage
https://bugguide.net/node/view/160500/bgimage
https://bugguide.net/node/view/169720/bgimage
https://bugguide.net/node/view/195639/bgimage
https://bugguide.net/node/view/476113/bgimage
https://bugguide.net/node/view/232255/bgimage
https://bugguide.net/node/view/100232/bgimage
S. pyrastri (now S. affinis I think?)
https://bugguide.net/node/view/77662/bgimage
https://bugguide.net/node/view/17657/bgimage
https://bugguide.net/node/view/268366/bgimage
https://bugguide.net/node/view/283443/bgimage
https://bugguide.net/node/view/1738233/bgimage
Probably I can go through these links later and weed out some redundant ones...
Lapposyrphus, Dasysyrphus also similar.
Lapposyrphus
https://bugguide.net/node/view/165692
https://bugguide.net/node/view/20033/bgimage
https://bugguide.net/node/view/161960/bgimage
https://bugguide.net/node/view/310633/bgimage
https://bugguide.net/node/view/381930/bgimage
Allograpta in North America
https://www.inaturalist.org/observations/8490526
Melanistic: https://bugguide.net/node/view/977116/bgpage
Neotropical Allograpta
List of Neotropical species of each subgenus and locations from Mengual et al.:
A. obliqua group
aeruginosifrons (Brazil)
annulipes (Colombia, Ecuador, Peru, Brazil, Bolivia) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10021657
aperta (Surinam, Guyana) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10021897
bilineella (Colombia)
browni (Ecuador) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10021656
exotica (central US south to Argentina)
falcata (Colombia, Venezuela) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10020869
hastata (Peru, Brazil) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10020870
hortensis (Peru, Chile, Argentina)
insularis (Puerto Rico)
limbata (West Indies, Brazil) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10023451
neotropica (Colombia, Ecuador, Brazil, Argentina) - https://www.inaturalist.org/observations/18423390, https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10021326
obliqua (Canada south to Argentina)
piurana (Peru, Chile)
pulchra (Chile, Easter Island)
radiata (Florida, West Indies)
robinsoniana (Juan Fernandez Island)
splendens (Galapagos)
tectiforma (Ecuador) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10021658
teligera (Ecuador, Brazil) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10020871
trilimbata (Mexico) - description in Latin https://archive.org/details/diptresnouveau00bigot/page/134/mode/2up
Fazia group
micrura (BC to Texas, Mexico)
alta (Colombia, Ecuador) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10021324
altissima (Ecuador)
argentipila (Ecuador, Peru, Argentina)
centropogonis (Costa Rica) - http://syrphidae.myspecies.info/taxonomy/term/225/media
colombia (Colombia, Ecuador, Brazil, Argentina) - http://syrphidae.inpa.gov.br/index.php/generos/syrphi?id=69, http://syrphidae.myspecies.info/taxonomy/term/856/media, https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10021325
decemmaculata (Chile, Ecuador)
eupeltata (Mexico) - description in Italian https://archive.org/details/ditteridelmessic00gigl/page/n109/mode/2up
fasciata (Ecuador, Peru) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10022467
fascifrons (Colombia, Ecuador)
flukei (Cuba) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10021433
funeralia (Jamaica) - https://mczbase.mcz.harvard.edu/guid/MCZ:Ent:23787
hians (Mexico) - https://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=199627
imitator (Colombia, Ecuador, Bolivia)
luna (Ecuador)
macquarti (Chile, Argentina)
mu (Mexico)
nasigera (Colombia)
plaumanni (Brazil)
remigis (Ecuador)
roburoris (Ecuador, Argentina)
rostrata (Mexico) - https://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=199624
saussurii (Mexico) - similar to eupeltata but significantly smaller
similis (Colombia, Brazil, Argentina) - https://sci-web-001.amnh.org/imulive/iz.html?#details=ecatalogue.10021327
strigifacies (Brazil) - http://syrphidae.inpa.gov.br/index.php/generos/syrphi?id=69
syrphica (Mexico) - https://archive.org/details/ditteridelmessic00gigl/page/n161/mode/2up
willistoni (Mexico) - https://archive.org/details/ditteridelmessic00gigl/page/n161/mode/2up
Mengual, Ruiz, Rojo, Stahls, & Thompson. A conspectus of the flower fly genus Allograpta (Diptera: Syrphidae) with description of a new subgenus and species. 2009. https://repository.si.edu/bitstream/handle/10088/16774/ent_FCT_124.pdf
https://everything.explained.today/Allograpta/
https://www.secret-bases.co.uk/wiki/Allograpta
http://beta.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxon=allograpta&searchTax=
http://syrphidae.myspecies.info/taxonomy/term/200/media
https://www.gbif.org/occurrence/taxonomy?taxon_key=1540899
https://research.amnh.org/iz/types_db/list_types.php?phylum_name=&class_name=&taxon_order_name=&family_name=&genus_name=allograpta&species_name=&author_name=
http://syrphidae.inpa.gov.br/index.php/generos/syrphi?id=62
Allograpta (Fazia) colombia
http://syrphidae.inpa.gov.br/index.php/generos/syrphi?id=69
http://syrphidae.myspecies.info/taxonomy/term/856
Fluke, 1942. http://digitallibrary.amnh.org/handle/2246/2279 / http://digitallibrary.amnh.org/bitstream/handle/2246/2279//v2/dspace/ingest/pdfSource/nov/N1201.pdf?sequence=1&isAllowed=y
Checklist of Syrphidae of Ecuador https://www.zfmk.de/dateien/dokumente/2017_ecuador_checklist_0.pdf
Ocyptamus in Florida:
https://bugguide.net/node/view/87148/bgimage
https://bugguide.net/node/view/92738/bgimage
https://bugguide.net/node/view/158699/bgimage
https://bugguide.net/node/view/344988/bgimage
https://bugguide.net/node/view/922476/bgimage
https://bugguide.net/node/view/1479193/bgpage
https://bugguide.net/node/view/1644440/bgpage
O. pumilus/callidus group has a unique pattern:
http://unibio.unam.mx/irekani/handle/123456789/26074?proyecto=Irekani
http://syrphidae.inpa.gov.br/index.php/passos/passo-v/passo-v-09
http://syrphidae.inpa.gov.br/index.php/generos/syrphi?id=95
Some places to search for specimen photos:
https://mczbase.mcz.harvard.edu/SpecimenSearch.cfm
http://beta.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxon=ocyptamus&searchTax=
http://syrphidae.inpa.gov.br/index.php/generos/syrphi?id=95
http://syrphidae.myspecies.info/taxonomy/term/206/media
https://diptera.info/photogallery.php?album_id=49 (Go to letter "O")
https://www.gbif.org/occurrence/taxonomy?media_type=StillImage&taxon_key=1537736
http://scan-bugs.org/portal/collections/harvestparams.php
http://140.247.96.247/mcz/findrecords.php?-link=Find%20members (search for "Baccha")
https://research.amnh.org/iz/types_db/list_types.php?phylum_name=&class_name=&taxon_order_name=&family_name=&genus_name=baccha&species_name=&author_name=
Recent papers:
Big thesis on Ocyptamus (2011) - https://atrium.lib.uoguelph.ca/xmlui/bitstream/handle/10214/3017/GFGMiranda%20PhD%20Thesis.pdf?sequence=1 (some abdomen diagrams on page 160)
2012 taxonomy stuff - https://www.zfmk.de/dateien/atoms/files/ocyptamus_article.pdf
Some taxonomy stuff done (2016) - https://www.researchgate.net/publication/308665731_The_genus_Ocyptamus_Macquart_Diptera_Syrphidae_A_molecular_phylogenetic_analysis
Paper with lots of diagrams, also in references looks like there may be more (2018) -
https://www.zfmk.de/dateien/dokumente/2018_ocyptamus.pdf
Other resources:
Hine, 1914 - descriptions of some species - https://kb.osu.edu/handle/1811/820 / https://kb.osu.edu/bitstream/handle/1811/1826/V14N08_333.pdf?sequence=1
Hull, 1943 - https://archive.org/stream/entomolog232419431944broo#page/n51/mode/2up/
Meligramma
https://cjai.biologicalsurvey.ca/mylmst_23/mylmst_23_363.HTM
Meligramma guttata
https://bugguide.net/node/view/1515075/bgpage
Melangyna
https://cjai.biologicalsurvey.ca/mylmst_23/mylmst_23_364.HTM
https://bugguide.net/node/view/1721674/bgimage
https://bugguide.net/node/view/1338019/bgimage
https://bugguide.net/node/view/1035271/bgimage
https://bugguide.net/node/view/71537/bgimage
https://bugguide.net/node/view/1549044/bgimage
Melangyna labiatarum
https://bugguide.net/node/view/50655/bgimage
https://bugguide.net/node/view/108259/bgimage
Melangyna coei
https://bugguide.net/node/view/1560318/bgimage
Melangyna fisherii
https://bugguide.net/node/view/474940/bgimage
https://www.inaturalist.org/journal/upupa-epops/14985-identifying-toxomerus-hoverflies
P. obscurus
https://www.inaturalist.org/observations/12650658
https://www.inaturalist.org/journal/upupa-epops/27363-some-syrphinae-larvae-of-north-america
評論
Great post! And thanks big time for all of the curation of these hoverflies on iNat!
新增評論