Large-Tailed Aphideater
ExploreInsects
Large-Tailed Aphideater
eupeodes volucris
The Large-Tailed Aphideater (Eupeodes volucris) is a fascinating species of hoverfly well-known for its dual role as a master pollinator and a natural pest controller. At first glance, this nimble insect might be mistaken for a stinging wasp or bee due to its striking black-and-yellow patterned abdomen. However, it is completely harmless to humans. It gets its dramatic common name from the bulbous, prominent reproductive structures on the male's posterior, as well as the voracious, aphid-hunting lifestyle of its larval stage. These hoverflies are vital components of their ecosystems across North America. While the adults spend their days zipping from flower to flower drinking nectar and transferring pollen, the slug-like larvae act as relentless predators, silently sweeping through gardens and agricultural fields to devour thousands of aphids. This makes the Large-Tailed Aphideater a highly valued ally for farmers and gardeners alike, beautifully bridging the gap between pest management and plant reproduction.
Habitat: Typically found in open gardens, sunny meadows, agricultural fields, and woodland edges where flowering plants and aphid colonies are abundant.
Appearance
The Large-Tailed Aphideater is a moderately sized hoverfly reaching about 7 to 11 millimeters in length. It features a predominantly black abdomen punctuated by three pairs of distinctive pale yellow to whitish crescent-shaped spots, or lunules, that do not quite reach the side margins of its body. The thorax is a metallic greenish-bronze, bearing a pair of large, reddish-brown compound eyes that meet at the top of the head in males but remain separated in females. Males are specifically distinguished by unusually large, rounded terminalia at the end of the abdomen, giving them a recognizable 'large-tailed' appearance. Their single pair of transparent wings rest flat over the back when the insect is stationary.
KingdomAnimaliaPhylumArthropodaClassInsectaOrderDipteraFamilySyrphidaeGenusEupeodes
Category
InsectsRarity
Common
Danger
1/5 · Very low
Snaps
Be the first to snap!
Interesting facts
A single Large-Tailed Aphideater larva can devour up to 400 aphids during its two-week developmental phase, piercing them with specialized mouthparts to drain their fluids.
Adults can beat their wings up to 120 times per second, allowing them to remain completely suspended in mid-air or instantly dart away at the slightest sign of movement.
Despite 'dressing up' in the bold warning colors of a stinging wasp to trick predators, they are entirely defenseless and do not possess a stinger.
The 'large tail' that gives this species its name is actually a prominent set of male reproductive organs called terminalia, which tuck under the abdomen.
Special abilities
Ability
Batesian Mimicry
Adults possess black and yellow markings that mimic stinging wasps and bees, successfully deterring visually hunting predators like birds despite the fly having no stinger.
Ability
Precision Hovering
Highly evolved wing mechanics allow adults to remain perfectly stationary in mid-air, fly backward, and execute rapid directional changes to evade threats.
Ability
Honeydew Detection
Females utilize highly sensitive olfactory receptors to detect the honeydew secreted by aphids, ensuring they lay their eggs directly within an active food source for their young.
Measurements & details
- Length
- 1 cm
- Wingspan
- 1-2 cm
- Weight
- 0.00001-0.00005 kg
- Lifespan
- 0-1 years
- Top Speed
- 15 km/h
- Clutch Size
- 50-150
- Incubation
- 3-8 days
Diet & Feeding
The diet undergoes a complete transformation between life stages: larvae are obligate predators of soft-bodied insects, while adults feed exclusively on floral resources.
Age differences: Larvae are voracious carnivores that strictly consume aphids and other small pests, whereas mature winged adults are herbivores that feed entirely on floral nectar and pollen.
Primary Foods
- Aphids
- Flower Nectar
- Pollen
- Thrips
- Scale insects
Foraging Method
- Foraging
Ecological connections
hunts
Pea Aphid
Acyrthosiphon pisum
Primary food source for the predatory larval stage.
eaten by
Barn Swallow
Hirundo rustica
A common avian predator that catches hoverflies on the wing.
pollinator
Common Dandelion
Taraxacum officinale
Adults pollinate this widespread flowering plant while feeding on its nectar.
Traits
No trait badges are assigned for this object yet.
Also known as
No aliases listed yet.
Collections
Collections for this object will appear here as more themes are added.
Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Large-Tailed Aphideater?
The easiest way to identify Large-Tailed Aphideater is to use the Snappit nature identifier app.
How long is Large-Tailed Aphideater?
1 cm
What is Large-Tailed Aphideater's wingspan?
1-2 cm
How much does Large-Tailed Aphideater weigh?
0.00001-0.00005 kg
How long does Large-Tailed Aphideater live?
0-1 years
How fast can Large-Tailed Aphideater move?
15 km/h
What does Large-Tailed Aphideater eat?
The diet undergoes a complete transformation between life stages: larvae are obligate predators of soft-bodied insects, while adults feed exclusively on floral resources.
Where is Large-Tailed Aphideater usually found?
Typically found in open gardens, sunny meadows, agricultural fields, and woodland edges where flowering plants and aphid colonies are abundant.
Snap Map
Zoom in to split clusters and explore where this object has been snapped.
Loading map…
Recent Snaps
Recent snaps will appear here as new observations are added.
