Pine-Tree Lappet
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Pine-Tree Lappet
dendrolimus pini
The Pine-Tree Lappet (Dendrolimus pini) is a stout, heavily built moth belonging to the snout moth family, Lasiocampidae. Highly respected for its exceptional camouflage, this species spends its life intricately tied to European coniferous forests, particularly those dominated by Scots pine. While the cryptically colored adults fly under the cover of night, the large, hairy caterpillars are notorious defoliators that feed voraciously on pine needles. During population outbreaks, they can pose a significant ecological challenge to forestry management. However, in balanced ecosystems, they serve as a crucial food source for forest birds and predatory insects, acting as a vital link in the woodland food web.
Habitat: Found in dense coniferous forests, predominantly those featuring Scots pine (Pinus sylvestris), across Europe and temperate Asia.
Appearance
Adult Pine-Tree Lappets have a wingspan ranging from 5 to 8 cm, with females being significantly larger than males. Their forewings are intricately patterned in shades of grey, reddish-brown, and dark brown, mimicking the texture of pine bark, and are decorated with a characteristic small, white crescent-shaped spot and wavy transverse lines. In their larval form, the caterpillars are large and robust, growing up to 9 cm long, covered in dense greyish-brown hairs with distinctive blue-black bands across their thoracic segments that are revealed when threatened.
KingdomAnimaliaPhylumArthropodaClassInsectaOrderLepidopteraFamilyLasiocampidaeGenusDendrolimus
Category
InsectsRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
Adult Pine-Tree Lappet moths do not possess a functional digestive system; they live only for a few days to mate, relying entirely on energy stored from their caterpillar days.
They can sometimes take two full years to complete their lifecycle in colder northern climates, overwintering twice as caterpillars before pupating.
When threatened, the caterpillar arches its body to expose bright, blue-black metallic warning bands on its neck as a visual deterrent to birds.
Special abilities
Ability
Bark Camouflage
Adults rest flat against tree trunks during the day, where their mottled brown and grey wing patterns make them virtually invisible to predators.
Ability
Urticating Hairs
The caterpillars possess specialized toxic, irritating hairs that can cause severe rashes or allergic reactions in predators and humans who touch them.
Ability
Winter Diapause
To survive freezing temperatures, the larvae crawl down to the forest floor and enter a state of suspended animation in the soil litter, resuming feeding only when spring arrives.
Measurements & details
- Length
- 3-9 cm
- Wingspan
- 5-8 cm
- Weight
- 0.001-0.005 kg
- Lifespan
- 1 years
- Clutch Size
- 150-350
- Incubation
- 14-25 days
Diet & Feeding
The larvae feed strictly on the needles of conifers, primarily pines, while the adult moths have vestigial mouthparts and do not feed at all.
Primary Foods
- Scots Pine needles
- Norway Spruce needles
- European Larch needles
Foraging Method
- Grazing
Ecological connections
host plant
Scots Pine
Pinus sylvestris
The primary host plant whose needles provide nourishment for the growing caterpillars.
eaten by
Common Cuckoo
Cuculus canorus
A specialized bird that feeds on the large, hairy caterpillars, overcoming their defensive bristles.
parasite
Parasitoid Wasp
Trichogramma embryophagum
A tiny parasitic wasp that lays its eggs inside the moth's eggs, controlling the moth population.
Traits
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Also known as
No aliases listed yet.
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Pine-Tree Lappet?
The easiest way to identify Pine-Tree Lappet is to use the Snappit nature identifier app.
How long is Pine-Tree Lappet?
3-9 cm
What is Pine-Tree Lappet's wingspan?
5-8 cm
How much does Pine-Tree Lappet weigh?
0.001-0.005 kg
How long does Pine-Tree Lappet live?
1 years
What does Pine-Tree Lappet eat?
The larvae feed strictly on the needles of conifers, primarily pines, while the adult moths have vestigial mouthparts and do not feed at all.
Where is Pine-Tree Lappet usually found?
Found in dense coniferous forests, predominantly those featuring Scots pine (Pinus sylvestris), across Europe and temperate Asia.
How does Pine-Tree Lappet hunt?
Grazing
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