Merodon equestris (Fabricius, 1794)
(Large Bulb Fly, Large Narcissus Fly)

Interactions where Merodon equestris is the dominant partner and gains from the process

The following relationships have been collated from the published literature (see 'Interaction References').

Stage Summary Taxon Vernacular Classification References Darwin Classification of Active Taxon Active Taxon Active Vernacular Active Taxon Uncertain Active State Active Part Active Stage Relationship Relationship Uncertain Relationship Geography Darwin Classification of Passive Taxon Passive Taxon Passive Vernacular Passive Taxon Uncertain Passive State Passive Part Passive Stage Passive Taxon's significance to Active Taxon Indoors etc Season
larva larva feeds within bulb Amaryllis belladonna Jersey Lily Asparagales: Amaryllidaceae Colour Guide to Hoverfly Larvae (Diptera, Syrphidae) in Britain and Europe, Rotheray, G.E., 1993
/Animalia/Arthropoda/Insecta/Diptera/Syrphidae/Merodon equestris/Merodon equestrislarge bulb fly, large narcissus flylarva Foodplant / internal feeder /Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Amaryllis belladonna/Amaryllis belladonnaJersey lilybulb
larva larva feeds within bulb Leucojum aestivum Summer Snowflake Asparagales: Amaryllidaceae Colour Guide to Hoverfly Larvae (Diptera, Syrphidae) in Britain and Europe, Rotheray, G.E., 1993
/Animalia/Arthropoda/Insecta/Diptera/Syrphidae/Merodon equestris/Merodon equestrislarge bulb fly, large narcissus flylarva Foodplant / internal feeder /Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Leucojum aestivum/Leucojum aestivumsummer snowflakebulb
larva larva feeds within bulb Major Narcissus daffodils and narcissi Asparagales: Amaryllidaceae Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Colour Guide to Hoverfly Larvae (Diptera, Syrphidae) in Britain and Europe, Rotheray, G.E., 1993
/Animalia/Arthropoda/Insecta/Diptera/Syrphidae/Merodon equestris/Merodon equestrislarge bulb fly, large narcissus flylarva Foodplant / internal feeder /Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Narcissus/Narcissusdaffodils and narcissibulbMajor
larva larva feeds within bulb Hyacinthus orientalis Hyacinth Asparagales: Asparagaceae Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998
Colour Guide to Hoverfly Larvae (Diptera, Syrphidae) in Britain and Europe, Rotheray, G.E., 1993
/Animalia/Arthropoda/Insecta/Diptera/Syrphidae/Merodon equestris/Merodon equestrislarge bulb fly, large narcissus flylarva Foodplant / internal feeder /Plantae/Tracheophyta/Magnoliopsida/Asparagales/Asparagaceae/Hyacinthus orientalis/Hyacinthus orientalishyacinthbulb
larva larva feeds within bulb Scilla squills Asparagales: Asparagaceae Colour Guide to Hoverfly Larvae (Diptera, Syrphidae) in Britain and Europe, Rotheray, G.E., 1993
/Animalia/Arthropoda/Insecta/Diptera/Syrphidae/Merodon equestris/Merodon equestrislarge bulb fly, large narcissus flylarva Foodplant / internal feeder /Plantae/Tracheophyta/Magnoliopsida/Asparagales/Asparagaceae/Scilla/Scillasquillsbulb

Interactions where Merodon equestris is the victim or passive partner (and generally loses out from the process)

The following relationships have been collated from the published literature (see 'Interaction References').

Filters:

Affected Part Summary Taxon Vernacular Classification References Darwin Classification of Active Taxon Active Taxon Active Vernacular Active Taxon Uncertain Active State Active Part Active Stage Relationship Relationship Uncertain Relationship Geography Darwin Classification of Passive Taxon Passive Taxon Passive Vernacular Passive Taxon Uncertain Passive State Passive Part Passive Stage Passive Taxon's significance to Active Taxon Indoors etc Season Summary
is endoparasitoid host of larva Questionable Lypha dubia a parasitoid fly Diptera: Tachinidae Tachinid Flies (Diptera: Tachinidae), Belshaw, R., 1993
Parasitism of Merodon larva by the Tachinid Lypha dubia Fln., Collin, J.E., 1945
/Animalia/Arthropoda/Insecta/Diptera/Tachinidae/Lypha dubia/Lypha dubiaa parasitoid flylarva Animal / parasitoid / endoparasitoid /Animalia/Arthropoda/Insecta/Diptera/Syrphidae/Merodon equestris/Merodon equestrislarge bulb fly, large narcissus fly? larva is endoparasitoid of

Author & YearTitleSource
Belshaw, R., 1993Tachinid Flies (Diptera: Tachinidae)Handbooks for the Identification of British Insects, Vol 10, Part 4a(i), 169pp, The Royal Entomological Society of London
Buczacki, S. & Harris, K., 1998Pests, Diseases & Disorders of Garden PlantsCollins Photoguide, 2nd edition edition, Collins
Collin, J.E., 1945Parasitism of Merodon larva by the Tachinid Lypha dubia Fln.Entomologist’s Record and journal of variation 57: 70.
Rotheray, G.E., 1993Colour Guide to Hoverfly Larvae (Diptera, Syrphidae) in Britain and EuropeDiperists Digest Dipterists Digest No. 9.

Merodon equestris (Large Bulb Fly, Large Narcissus Fly) may also be included in 'feeds on' relations listed under the following higher taxa:

Merodon equestris (Large Bulb Fly, Large Narcissus Fly) may also be included in 'fed on by' relations listed under the following higher taxa:

Taxonomic hierarchy:
SpeciesMerodon equestris (Large Bulb Fly, Large Narcissus Fly)
TribeMerodontini (bulb flies)
SubfamilyMILESIINAE (a subfamily of hoverflies)
FamilySYRPHIDAE (hover flies, drone flies, flower flies, hoverfly)
SuperfamilySYRPHOIDEA (hover flies, drone flies, flower flies & big-headed flies)
InfraorderEremoneura - Cyclorrhapha (an infraorder of flies)
OrderDIPTERA (two-winged flies)
Division Endopterygota (bees, beetles, flies, moths and other insects with wings developing internally)
InfraclassNeoptera (bees, beetles, flies, grasshoppers, moths and other advanced insects)
SubclassPTERYGOTA (bees, beetles, dragonflies, flies, grasshoppers, moths and other winged insects)
ClassINSECTA (true insects)
SubphylumHEXAPODA (insects and other 6-legged organisms)
PhylumARTHROPODA (arthropods)
SuperphylumECDYSOZOA (skin shedders)
CladeBilateria (bilaterally symmetrical animals)
SubkingdomEUMETAZOA (metazoans)
KingdomANIMALIA (animals)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
NBNNBN (data.nbn.org.uk) has a distribution map for Merodon equestris (Large Bulb Fly, Large Narcissus Fly)

Identification Works

Handling & MagnificationAuthorYearTitleSource
Collin, J.E. 1945 Parasitism of Merodon larva by the Tachinid Lypha dubia Fln. Entomologist’s Record and journal of variation 57: 70.
Morris, R.K.A. & Ball, S.G. 2002 An introduction to British hoverflies and the Hoverfly Recording Scheme British Wildlife Vol 14, No 1: 38-45.

Merodon equestris (Large Bulb Fly, Large Narcissus Fly) may also be included in identification literature listed under the following higher taxa:

Literature listed under the following higher taxa may be relevant to Merodon equestris (Large Bulb Fly, Large Narcissus Fly):

BioImagesBioImages (www.bioimages.org.uk) has 50 images of Merodon equestris (Large Bulb Fly, Large Narcissus Fly)
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