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syrphid fly
syrphidae
hoverflies
eristalis tenax
hover fly
colletes
apis mellifera
pollination
bumblebee fly
vespula
bee
volucella zonaria
pollinating
helianthus tuberosus
wedge-spot hover fly
silphium perfoliatum
helianthus occidentalis
helianthus annuus
hornet hover fly
collecting nectar
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syrphid fly
hoverfly
syrphidae
eristalis tenax
hover fly
volucella zonaria
apis mellifera
colletes
bumblebee fly
hornet hover fly
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pollination
bee in the approach
syrphidae
pollinating
rudbeckia
rudbeckia nitida
pollina
bumblebee fly
colletes
syrphid fly
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apis mellifera
syrphidae
western honey bee
eristalis tenax
hoverfly
colletes
megachilidae
pollinators
pollina
pollinating
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colletes
western honey bee
eristalis tenax
pollinators
apis mellifera
megachilidae
rudbeckia nitida
pollination
pollinating
solitary bees
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hoverflies
hover fly
apis mellifera
syrphid fly
syrphidae
eristalis tenax
bumblebee fly
western honey bee
pollination
pollinating
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colletes
megachilidae
syrphidae
apis mellifera
syrphid fly
hover fly
western honey bee
eristalis tenax
vespula
hornet hover fly
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apis mellifera
pollination
western honey bee
pollino
bee
eristalis tenax
pollinating
syrphidae
bee in the approach
colletes
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rudbeckia nitida
syrphidae
syrphid fly
apis mellifera
hornet hover fly
volucella zonaria
helianthus tuberosus
rudbeckia nidita
vespula
silphium perfoliatum
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eristalis tenax
western honey bee
colletes
syrphid fly
megachilidae
pollination
syrphidae
solitary bees
apis mellifera
silphium perfoliatum
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apis mellifera
colletes
eristalis tenax
hoverfly
syrphidae
syrphid fly
western honey bee
megachilidae
tachinid
hover fly
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bee in the approach
bumblebee fly
pollination
pollinators
hover fly
pollinating
helianthus occidentalis
rudbeckia
rudbeckia nitida
hoverfly
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colletes
syrphidae
syrphid fly
hoverflies
pollination
rudbeckia nitida
pollinators
apis mellifera
pollinating
hover fly
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hoverfly
syrphidae
syrphid fly
wedge-spot hover fly
volucella zonaria
hover fly
hornet hover fly
hornet mimic hoverfly
vespula
yellow jacket
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silphium perfoliatum
eristalis tenax
colletes
syrphidae
apis mellifera
helianthus tuberosus
helianthus annuus
rudbeckia nitida
syrphid fly
megachilidae
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apis mellifera
western honey bee
pollinators
pollination
pollinating
neonicotinoids
pollen warehousing
beekeeping
syrphid fly
anthidium
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eristalis tenax
megachilidae
apis mellifera
pollination
colletes
pollinators
western honey bee
rudbeckia nitida
bee in the approach
pollinating
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eristalis tenax
apis mellifera
colletes
megachilidae
syrphidae
hoverflies
silphium perfoliatum
pollination
pollinators
pollinating
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rudbeckia nitida
rudbeckia nidita
rudbeckia
rudbeckia fulgida
pollina
helianthus tuberosus
silphium perfoliatum
xylocopa
pollination
helianthus annuus
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syrphid fly
volucella zonaria
syrphidae
apis mellifera
megachilidae
bee in the approach
collecting nectar
pollina
pollinia
arnica montana
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syrphidae
syrphid fly
hoverflies
hover fly
wedge-spot hover fly
hornet hover fly
rudbeckia nitida
helianthus occidentalis
helianthus annuus
helianthus tuberosus