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Microbregma

Microbregma emarginatum

A species of Microbregma

Microbregma is a monotypic genus of beetles in the family Ptinidae containing the single species Microbregma emarginatum. It is native to North America. The beetle lives in hardwood and softwood forests. The larva feeds on bark. It has been collected from pine, hemlock, hickory, and spruce.

General Info About Microbregma
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Attributes of Microbregma
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
Mouthparts Type
Chewing mouthparts
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Life Cycle of Microbregma
Egg The egg of microbregma is small and oval, often deposited in a secure location by the female. The egg's color and texture blend with the environment to avoid predation. This stage is solely for development into the larva.
Larva After hatching, the larva of microbregma is worm-like in shape, lacks wings, and has a voracious appetite for growth. It molts several times, increasing in size with each instar.
Pupal The pupa of microbregma represents a transitional period where it's immobile and encased. Inside, significant changes occur as the insect transforms its body structure, organizing wings, legs, and antennae.
Adult Emerging from the pupa, the adult microbregma develops hardened wings and functional reproductive organs. The exoskeleton is fully sclerotized, and the adult is now focused on reproducing and dispersing.
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Predators of Microbregma Larvae
Birds, rodents, larger beetles, centipedes
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Predators of Adult Microbregma
Birds, mammals, larger insects, spiders, lizards
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Interesting Facts About Microbregma
Microbregma can remain underwater for up to 30 minutes by trapping air under its wings, effectively using them like a gill to breathe.
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Scientific Classification of Microbregma
Tips for Finding Microbregma
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How Can You Attract Microbregma
For adult microbregma, a pheromone or food-based trap that mimics their preferred nutrition source can be effective.
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Habitat Preferences of Microbregma Through Different Life Stages
The larvae of microbregma typically reside within hardwood, particularly favoring the moist, decaying wood of fallen logs or stumps where they burrow to feed on fungi and the wood itself. When searching for larvae, one should investigate such environments, carefully examining beneath the bark or within rotting cavities of timber. Adult microbregma, however, are more commonly observed on the surface of tree trunks or leaves, as they venture out to mate and lay eggs. To find adults, a search should be conducted on warm, sunny days when they are likely to be most active, focusing on the bark of trees where they may be spotted resting or crawling.
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When is the Best Time to Observe Microbregma
The best time to find adult microbregma is usually at night, as many Coleoptera are nocturnal.
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What is the Best Weather to Observe Microbregma
Adult microbregma may be more active and easier to find in warmer weather when humidity is moderate to high, which aids in their reproduction and feeding habits.
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How and Where Can You Find Microbregma at Different Life Stages
Larva Larvae of microbregma are often found inside their food source such as wood or organic materials. To find them, inspect infested wood by looking for exit holes or frass, and carefully split the wood to see the larvae within.
Pupal Pupal stages of microbregma may still be inside the material they fed on as larvae. Finding them involves the same inspection for frass and exit holes, and sometimes, if the conditions are right, the pupae might be seen near the surface of the wood.
Adult Adult microbregma are typically found on or near their food sources. They can be found by setting up light traps at night to attract them, searching on or under the bark of trees, or checking near food storage areas if microbregma are known pests.
Are Microbregma harmful?
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