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Spotted longhorn

Spotted longhorn

Rutpela maculata

A species of Rutpela

The adults grow up to 0.51–0.79 in. The head and pronotum are dark-brown, while elytra are yellowish, with black dots and stripes, rough imitations of wasps, which probably gives them some protection from birds.

General Info About Spotted longhorn
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Attributes of Spotted longhorn
Colors
Black
Yellow
Habitat
wooded border; parkland; hedgerow; garden
Adult Food Sources
Nectar, pollen, umbelliferous flowering plants, apiaceae family flowers, hawthorn and bramble blossoms
Larva Food Source
Decaying wood, dead softwood timber, rotting stumps, decomposing hardwood, fallen trees
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Spotted longhorn is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
The Spotted longhorn can bore into the wood and may damage its structure, or even harm the health of trees. Stay alert if you frequently observe it in your house.
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
The Spotted longhorn feeds on plants, usually without causing significant harm. However, it's important to take the situation seriously if their numbers begin to increase significantly.
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Species Status of Spotted longhorn
It is widespread in most of Europe, in East Palearctic ecozone and in the Near East.
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Distribution Area of Spotted longhorn
Europe
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Life Cycle of Spotted longhorn
Egg Embryonic development happens within the egg. The egg of spotted longhorn is small, often oval-shaped, and laid typically in a concealed location. Hatchlings resemble larvae, not adult spotted longhorn.
Larva After hatching, the larva of spotted longhorn is worm-like, lacking developed wings or adult structures. It feeds voraciously, molting several times as it grows. Color and shape changes are minimal but size increases significantly.
Pupal The larva of spotted longhorn encases itself within a pupa. This immobile stage is a time of reorganization, where tissues are broken down and reformed into adult structures. The pupa may darken over time.
Adult Emerging from the pupa, the adult spotted longhorn's development is marked by the presence of wings and functional reproductive organs. The body is fully formed and hardened, and the adult is mobile, focusing on reproduction.
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Adult Size of Spotted longhorn
1.3 - 2 cm
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Predators of Spotted longhorn Larvae
Birds, small mammals, arthropods such as beetles and ants
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Predators of Adult Spotted longhorn
Birds, reptiles, small mammals, larger insects like dragonflies and mantises
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Interesting Facts About Spotted longhorn
Spotted longhorn's larvae produce a distinct sound by grinding their mandibles as a defense mechanism when disturbed.
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Scientific Classification of Spotted longhorn
Tips for Finding Spotted longhorn
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Youth Habitat of Spotted longhorn
Forests and Woodlands, Rotting and Decaying Matter
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Adult Habitat of Spotted longhorn
Forests and Woodlands
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How Can You Attract Spotted longhorn
Sweet substances or rotting wood can be used as a bait to trap spotted longhorn, as they are attracted to these for nutrition.
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Habitat Preferences of Spotted longhorn Through Different Life Stages
The larvae of spotted longhorn are commonly found within decaying hardwood, where they develop and feed on the wood. Searching for these larvae would involve inspecting logs and stumps of broadleaf trees. Pupation also occurs within the wood, often close to the surface. Adults are typically spotted on warm, sunny days on the flowers and foliage of various plants, including umbellifers and hawthorns. To find adults, one should explore flowering meadows, forest edges, or hedgerows. Therefore, the search process for different life stages would include examining decomposed trees for larvae and pupae, and surveying nectar-rich floral areas for adults.
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When is the Best Time to Observe Spotted longhorn
Late spring to summer is typically the most suitable time to find adult spotted longhorn, while the larvae can often be found year-round.
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What is the Best Weather to Observe Spotted longhorn
Warm, dry, and sunny days are preferable for finding adult spotted longhorn when they are most active, looking for food or mates.
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How and Where Can You Find Spotted longhorn at Different Life Stages
Larva Spotted longhorn larvae are wood-borers and can be found inside dead or decaying trees. Look for them by examining trees with exit holes or by carefully splitting logs.
Pupal During the pupal stage, spotted longhorn can be found within the wood where they burrowed as larvae. To find them, search beneath the bark of dead trees or in crevices.
Adult Adult spotted longhorn can be found on or around flowers, feeding on nectar and pollen. They are also attracted to light, making them easier to spot at dusk or later when active. Spotting them may require patiently waiting near flowering plants or setting up a light trap at night.
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Harmful Effects of Spotted longhorn
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Forestry Pest

When spotted longhorn larvae feed, they bore into stems, weakening structural integrity. A small infestation is usually mild, with minimal impact. However, a high population can lead to severe damage, causing foliage withering and potential tree death. This can also pose risks to human safety due to falling trees and economic losses in timber production.

More Effects of Spotted longhorn

Beneficial Effects of Spotted longhorn
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Pollinator
Pollinator
Prefer Plant Type
Asteraceae, Apiaceae
Attract Plant Feature
Color, Smell
Pollination Behavior Reason
Eat Pollen Or Nectar
Spotted longhorn is attracted to the smell and color of flowers, particularly those in the Asteraceae and Apiaceae families. While feeding on pollen for sustenance, spotted longhorn inadvertently collects and transfers pollen between flowers, aiding in plant reproduction.
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