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Hagen's bluet

Hagen's bluet

Enallagma hageni

A species of Bluets

Enallagma hageni is a species of small dragonfly in the family of the brown dragonflies (Coenagrionidae), which is widespread in Canada and northern North America and can be very common in northern latitudes. Settled open swamps, lakes and ponds with dense vegetation and mire pools. Enallagma hageni is a typical representative of the species-rich group of blue-colored mugmothers. It is confusingly similar to the other members of the genus, especially the Enallagma ebrium, which is almost identical to its ecological claims. The first description of the species was made by Benjamin Dann Walsh in 1863, the epithet honors the entomologist Hermann August Hagen.

General Info About Hagen's bluet
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Attributes of Hagen's bluet
Colors
Black
Blue
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Hagen's bluet is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
The Hagen's bluet typically preys on other arthropods and does not directly affect plants.
Biting animal or pet
Yes
Mouthparts Type
Chewing mouthparts
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Life Cycle of Hagen's bluet
Egg The embryonic hagen's bluet begins development inside the egg, where it is generally oval and of consistent color. Size is minute and remains stationary, attached to substrates near or in water.
Naiad Emerging as a naiad, the aquatic hagen's bluet possesses gills for underwater respiration. This stage undergoes several molts, increasing in size but maintaining its naiadal form, coloration, and aquatic lifestyle throughout.
Adult As an adult, the hagen's bluet exits the aquatic environment with elongated bodies and transparent wings for flight. Colors become more vivid, sexual dimorphism may be evident, and adults focus on feeding and reproduction, abandoning aquatic habitat.
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Adult Size of Hagen's bluet
2.5 - 3.5 cm
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Predators of Hagen's bluet Larvae
Frogs, toads, fish, water beetles, birds
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Predators of Adult Hagen's bluet
Birds, spiders, frogs, wasps, dragonflies
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Interesting Facts About Hagen's bluet
Emerging at dusk, hagen's bluet engage in a unique shadowy dance over water bodies, traversing with precision despite low light conditions.
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Scientific Classification of Hagen's bluet
Tips for Finding Hagen's bluet
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How Can You Attract Hagen's bluet
Due to hagen's bluet's diet, which primarily consists of smaller insects and possibly aquatic naiads, any trap meant to attract hagen's bluet could include elements that mimic or attract such prey.
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Habitat Preferences of Hagen's bluet Through Different Life Stages
The naiads of hagen's bluet are aquatic and primarily inhabit still waters of ponds and marshes with abundant vegetation to provide nourishment and protection. To observe naiads, one must search beneath the water's surface among aquatic plants. Adult hagen's bluet are often found in areas surrounding these aquatic environments, including meadows and fields, where they hunt for prey and engage in mating behaviors. To find adults, observe along the edges of water bodies, focusing on sunny spots where they bask or near vegetation where they can easily capture flying insects.
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When is the Best Time to Observe Hagen's bluet
The best time to find hagen's bluet is typically during the warmer months of the year when they are most active, especially during daylight hours when they are flying and hunting for food.
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What is the Best Weather to Observe Hagen's bluet
Dry and sunny conditions are generally most conducive for finding hagen's bluet as they are less active during cold, rainy, or overly windy weather.
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How and Where Can You Find Hagen's bluet at Different Life Stages
Egg Eggs of hagen's bluet are usually laid on aquatic plants, so search for hagen's bluet eggs by examining the stems and leaves of plants that are partially submerged in clean, still or slow-moving water.
Naiad Naiads of hagen's bluet, live underwater and are predators of other aquatic organisms. They can be found by carefully searching through the substrate of ponds, marshes, or slow streams using a net to sift through the vegetation and mud.
Adult During emergence, hagen's bluet transitions from naiad to adult and can often be found clinging to vegetation near water bodies as they dry their wings. Look for them at dawn or dusk on reeds, grasses, or other plants close to their aquatic naiadl habitats.
Hagen's bluet adults are found near aquatic habitats, such as lakes, ponds, and streams, as well as in meadows and gardens. Searching along the edges of these areas during warm sunny days, particularly where there is plenty of vegetation, provides the highest likelihood of sighting them as they perch or fly in search of prey or mates.
Are Hagen's bluet harmful?
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Beneficial Effects of Hagen's bluet
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Predators of Pests
Predators of Pests
Stage
Adults, Naiads
Diets
Mosquitoes, Aquatic Insects
Hagen's bluet voraciously hunts as both an adult and a naiad. The adult aerially preys on flying insects, particularly favoring mosquitoes, while the aquatic naiads target an array of aquatic invertebrates. This predator is both beneficial for natural pest regulation and fascinating due to its dual-stage predatory lifestyle.
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