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A square-head wasp

A square-head wasp

Ectemnius lapidarius

A species of Ectemnius

Ectemnius lapidarius is a species of square-headed wasp in the family Crabronidae. It is found in Africa, Europe and Northern Asia (excluding China), North America, and Southern Asia.

General Info About A square-head wasp
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Attributes of A square-head wasp
Adult Food Sources
Nectar from flowers, honeydew, sap from plants, fruit juices, insects (occasionally)
Larva Food Source
Diptera (flies), homoptera (such as aphids), hymenoptera (smaller wasps or bees), lepidoptera (moth and butterfly larvae), other soft-bodied insects
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
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Species Status of A square-head wasp
Stable population
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Predators of A square-head wasp Larvae
Araneae (spiders), amphibia (frogs and toads), reptilia (lizards), aves (birds)
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Predators of Adult A square-head wasp
Araneae (spiders), aves (birds), mantodea (mantises), odonata (dragonflies)
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Interesting Facts About A square-head wasp
A square-head wasp can excavate their nests in weathered wood or soft mortar, demonstrating their unique ability to adapt to urban environments.
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Scientific Classification of A square-head wasp
Tips for Finding A square-head wasp
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Youth Habitat of A square-head wasp
Rotting and Decaying Matter, Forests and Woodlands, Urban and Suburban Areas
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Habitat Preferences of A square-head wasp Through Different Life Stages
The larvae of a square-head wasp are typically found in cavities within decaying wood or in pithy stems of plants, where the adults have prepared a nest. These sites offer protection and a food supply brought by the adults. Adult a square-head wasp are commonly searched for around areas rich in flowering plants, especially where exposed soil or soft mortar on sunny days is present, as they hunt for other insects and nectar. Seeking the pupae requires examining the aforementioned larval nesting sites, as they will pupate within these protected locations before emerging as adults. To look for the different growth and development stages of a square-head wasp, one must search both floral-rich areas for adults during the day and inspect potential nesting sites for larvae and pupae.
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When is the Best Time to Observe A square-head wasp
The most suitable time to find adult a square-head wasp is usually during daylight hours when they are most active, particularly in the warmer months. For immature stages, timing may vary and could depend on the particular life cycle stage.
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What is the Best Weather to Observe A square-head wasp
Dry and warm weather conditions are typically more suitable for finding a square-head wasp as they are generally less active during cold and wet weather.
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How and Where Can You Find A square-head wasp at Different Life Stages
Adult Adult a square-head wasp are often found in environments where they can hunt for prey or seek mates. Look for them on flowering plants, near sandy soils where they may nest, or around wooden structures where prey may be abundant.
Larva Larval a square-head wasp are tunneled underground or within wooden structures, depending on the species. Finding them requires gentle digging around suspected nesting sites or dissection of decayed wood without causing harm to the habitat.
Pupal The pupal stage of a square-head wasp is generally hidden within nesting sites. Locate these sites, which may be in soil or decaying wood, and observe without disturbing the pupae.
Are A square-head wasp harmful?
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Are A square-head wasp harmful to humans?

Although the a square-head wasp huge, it is not offensive to humans. When attacked, they will choose to fly away rather than fight back. If they are completely irritated, they may sting. In addition, they have the ability to bite, because the jaw is large (but usually not bite).
Beneficial Effects of A square-head wasp
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Pollinator
Predators of Pests
Pollinator
Attract Plant Feature
Color, Smell
A square-head wasp assists in plant pollination primarily by seeking out flowers for their pollen. While feeding on pollen for nourishment, a square-head wasp inadvertently collects pollen on its body, which is then transferred to other flowers, facilitating cross-pollination. The vibrant colors and enticing scents of flowers attract a square-head wasp, making it an effective pollinator.
Predators of Pests
Stage
Adults
Diets
Flies
A square-head wasp is an adept predator, vigorously defending its territory against various pests, principally flies. Unlike most predators that chase, a square-head wasp employs a 'wait and capture' strategy. Surprisingly, they paralyze their prey with a precise sting before transporting them to their nests where their hungry larvae will feast. This behavior underscores nature's meticulous balance and a square-head wasp's role in pest control.
Common Questions People Also Ask
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