
Elusive Clubtail
stylurus notatus
The Elusive Clubtail (Stylurus notatus) is a fascinating species of dragonfly, aptly named for its tendency to remain hidden along the banks of clean, flowing rivers and streams. This clubtail is a testament to the health of its aquatic environment, as its presence often indicates good water quality. It belongs to the family Gomphidae, known for their robust bodies and distinctive 'club' at the end of the male's abdomen. Observing an Elusive Clubtail in the wild is a rewarding experience for nature enthusiasts, requiring patience and a keen eye due to its camouflaged appearance and preference for less disturbed habitats.
生息地: Found in clean, moderately flowing rivers and large streams with sandy or silty bottoms, often near stretches with emergent vegetation.
外見
Adult Elusive Clubtails are medium-sized dragonflies, typically ranging from 5 to 6.5 cm in length, with a wingspan of about 6 to 8 cm. Their bodies are predominantly black with striking yellow markings. The thorax displays bold yellow stripes, while the abdomen features yellow spots or streaks along the top. Males possess a distinctive, flattened and expanded 'club' at the end of their abdomen (segments 7-9), which is primarily black. The eyes are widely separated and typically green or yellowish-green. Their wings are clear, with dark veins and a dark pterostigma.

カテゴリ
昆虫レア度
Common
危険度
1/5 · 非常に低い
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おもしろい事実
Elusive Clubtails are known for their strong, direct flight and their habit of perching horizontally on flat surfaces close to the ground or water.
Like all dragonflies, the Elusive Clubtail spends the majority of its life (2-4 years) as an aquatic nymph before emerging as a flying adult for only a few weeks.
The 'club' on the male's abdomen is a distinguishing feature of the Gomphidae family, though not all species have such a prominent one.
The scientific name 'Stylurus' comes from Greek, meaning 'pillar tail,' referring to the distinctive shape of their abdomens.
特殊能力
Benthic Larval Camouflage
The larvae of the Elusive Clubtail are adapted to burrow into the sandy or silty substrate of riverbeds, using their flattened bodies and cryptic coloration to hide from predators and ambush prey.
Aerial Ambush Hunting
Adult clubtails are agile flyers that often perch on vegetation or rocks along the water's edge. From these vantage points, they launch quick, darting attacks to capture flying insect prey in mid-air.
Water Quality Bioindicator
The presence of Stylurus notatus larvae and adults is often an indicator of good to excellent water quality, as they are sensitive to pollution and require clean, well-oxygenated aquatic environments.
サイズと詳細
- 長さ
- 5-6 cm
- 翼開長
- 6-8 cm
- 体重
- 0.0005-0.001 kg
- 寿命
- 2-4 年
- Top Speed
- 45 km/h
- 一度の産卵数
- 1000-5000
- 抱卵期間
- 7-20 日
食性と食事
Both larval and adult Elusive Clubtails are predatory insectivores. Larvae feed underwater on aquatic invertebrates, while adults hunt flying insects in the air.
年齢による違い: Larvae feed on aquatic invertebrates in the water column and benthic zones. Adults feed exclusively on flying insects captured in the air.
主な食物
- Mosquitoes
- Midges
- Mayflies
- Small flies
- Caddisflies
- Other small flying insects
採餌方法
- Larvae Primarily Ambush Prey From Within The Substrate; Adults Are Aerial Pursuit Hunters From A Perch.
生態系とのつながり
Mosquito
Culex pipiens
Adult Elusive Clubtails hunt and consume various small flying insects.
Smallmouth Bass
Micropterus dolomieu
Elusive Clubtail larvae are prey for various fish species within their aquatic habitat.
Eastern Kingbird
Tyrannus tyrannus
Adult Elusive Clubtails can fall prey to larger insectivorous birds.
Waterweed
Elodea canadensis
Aquatic vegetation provides shelter and hunting grounds for larval clubtails.
特徴
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別名
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安全性
危険度
1/5 · 非常に低い
まだ特別な安全上の注意はありません。
よくある質問
Elusive Clubtailを見分けるには?
Elusive Clubtailを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。
Elusive Clubtailの長さは何ですか?
5-6 cm
Elusive Clubtailの翼開長は何ですか?
6-8 cm
Elusive Clubtailの体重は何ですか?
0.0005-0.001 kg
Elusive Clubtailの寿命は何ですか?
2-4 年
Elusive Clubtailのtop Speedは何ですか?
45 km/h
Elusive Clubtailは何を食べますか?
Both larval and adult Elusive Clubtails are predatory insectivores. Larvae feed underwater on aquatic invertebrates, while adults hunt flying insects in the air.
Elusive Clubtailは通常どこに生息していますか?
Found in clean, moderately flowing rivers and large streams with sandy or silty bottoms, often near stretches with emergent vegetation.
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