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Three-Lined Potato Beetle

Three-Lined Potato Beetle

Lema daturaphila

A species of Lema, Also known as Gooseberry slug, Potato shining leaf beetle

Adult L. daturaphila measure 7-8 mmm in length and a bright orange-yellow in colour. Their elytra are marked with dark brown lines, one at either side and one along the suture between the wings - it is from this feature that their common name derives.

General Info About Three-Lined Potato Beetle
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Attributes of Three-Lined Potato Beetle
Colors
Black
Yellow
Red
Orange
Habitat
Meadows and potato fields.
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
The Three-Lined Potato Beetle is often found near the corolla, where its fluffy hairs easily pick up pollen, assisting in the pollination of the plant.
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Life Cycle of Three-Lined Potato Beetle
Egg The embryonic stage begins with the laying of eggs. These are small and typically laid in clusters. The three-Lined Potato Beetle's coloration is often pale and matches the environment for camouflage.
Larva Upon hatching, the larva of the three-Lined Potato Beetle is worm-like, with a soft exoskeleton. It is larger than the egg and primarily feeds, growing rapidly in size, and may undergo several molts.
Pupal After reaching a certain size, the three-Lined Potato Beetle enters the pupal stage. In this phase, the three-Lined Potato Beetle is often immobile and undergoes significant internal transformation, reshaping its body structure.
Adult Emerging from the pupa, the adult three-Lined Potato Beetle’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 Three-Lined Potato Beetle
6 - 7 mm
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Predators of Three-Lined Potato Beetle Larvae
Small passerine birds, predaceous insects like lady beetles, parasitic wasps, spiders
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Predators of Adult Three-Lined Potato Beetle
Birds, small mammals, reptiles such as lizards, insectivorous insects such as larger beetles and praying mantises, spiders, amphibians
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Interesting Facts About Three-Lined Potato Beetle
Three-Lined Potato Beetle can communicate with conspecifics using subtle variations in their elytra’s vibrations.
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Scientific Classification of Three-Lined Potato Beetle
Class
Bugs
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Order
Beetles
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Genus
Lema
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Tips for Finding Three-Lined Potato Beetle
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How Can You Attract Three-Lined Potato Beetle
no specific trap food mentioned
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Habitat Preferences of Three-Lined Potato Beetle Through Different Life Stages
The larvae of three-Lined Potato Beetle are primarily found on the underside of host plant leaves, particularly those of the Solanaceae family, which they voraciously feed upon. Searching for three-Lined Potato Beetle larvae involves examining these plants closely, especially Datura or Solanum species. Adult three-Lined Potato Beetle, on the other hand, can be spotted on or near the same host plants, but they are more mobile and may also be found on flowers, where they feed on pollen. To locate adult three-Lined Potato Beetle, one should observe the upper surfaces of leaves and flowers during sunny days when they are most active.
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When is the Best Time to Observe Three-Lined Potato Beetle
The suitable time to find three-Lined Potato Beetle is usually during the day since beetles are often active when the temperature is warmer.
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What is the Best Weather to Observe Three-Lined Potato Beetle
It's best to search for three-Lined Potato Beetle when the weather is warm and dry, as these conditions are favorable for beetle activity.
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How and Where Can You Find Three-Lined Potato Beetle at Different Life Stages
Egg Three-Lined Potato Beetle eggs are tiny and can often be found on the undersides of leaves. To locate them, carefully inspect host plants, especially concentrating on the foliage nearest to the ground.
Larva As larvae, three-Lined Potato Beetle are more noticeable and can be found feeding on their host plants. Look for signs of feeding, such as holes in leaves or defoliation, to detect their presence.
Pupal Three-Lined Potato Beetle pupae may be in the soil or concealed on the host plant. Searching around the base of plants and gently sifting through the top layer of soil can reveal them.
Adult Three-Lined Potato Beetle adults are most visible and can be found on or around host plants. Searching during warm times of the day, by visually scanning the plants for beetles or using a sweep net through vegetation, can be effective.
Are Three-Lined Potato Beetle harmful?
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Are Three-Lined Potato Beetle harmful to humans?

Some colorful leaf beetles are actually toxic, and their beautiful appearance is warning predators: I am very dangerous, do not eat me! However, just observing with your eyes and touching the leaf beetle with your hand will not be poisoned.
Harmful Effects of Three-Lined Potato Beetle
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Agricultural Pests

The larvae of three-Lined Potato Beetle specialize in damaging the leaves of potato plants by chewing plant tissues, primarily for feeding. Infestations can range from mild leaf damage to severe defoliation, significantly reducing crop yields. In large numbers, three-Lined Potato Beetle can cause extensive damage, posing a threat to agriculture and food security.

More Effects of Three-Lined Potato Beetle

Beneficial Effects of Three-Lined Potato Beetle
Discover the hidden benefits of insects
Explore how insects help as pollinators, pest predators, and biocontrol agents. From seed dispersal to decomposition, they play vital roles in our ecosystem.
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Pollinator
Pollinator
Pollination Behavior Reason
Eat Pollen Or Nectar, Accidental Contamination While Feeding On Nectar
Three-Lined Potato Beetle inadvertently aids in pollination while feeding on floral parts for its sustenance. This beetle may consume pollen directly or accidentally gather and transfer it in search of nutrients, playing a hidden but crucial role in the ecosystem.
Common Questions People Also Ask
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