# Four-Spotted Pennant (*brachymesia gravida*) The Four-Spotted Pennant (Brachymesia gravida) is a striking and highly active dragonfly commonly found darting over brackish coastal marshes, ponds, and slow-moving streams. Renowned for its distinctive perching style, this dragonfly often clings to the very tips of tall marsh grasses, swaying in the breeze like a tiny colorful flag or 'pennant'. This behavior, combined with its bold aerial maneuvers, makes it a favorite among insect watchers and nature enthusiasts. As voracious predators of smaller flying insects, they serve a vital ecological role in regulating pest populations. Their complex life cycle, transitioning from aquatic nymphs to master aerial acrobats, highlights the fascinating adaptability of the Odonata order. - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 2 - **Habitat:** Typically found in brackish coastal marshes, estuarine wetlands, and sluggish freshwater ponds or lakes with abundant emergent vegetation. ![Four-Spotted Pennant](https://inaturalist-open-data.s3.amazonaws.com/photos/2289828/medium.jpg) Photo: Michael D Fox, CC BY 4.0 · [iNaturalist](https://www.inaturalist.org/photos/2289828) ## Appearance This medium-to-large dragonfly features a robust body length of around 5 centimeters and a wingspan of up to 9 centimeters. Mature adult males develop a chalky, pale blue-gray pruinescence over their abdomens, while females and young males exhibit a warm yellowish-brown color patterned with dark, jagged dorsal markings. Their wings are mostly clear but are instantly recognizable by four prominent, dark brown spots situated at the midpoint (nodus) of each wing, as well as dark brown stigmas near the tips and amber-tinted washes at the wing bases. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Odonata - **Family:** Libellulidae - **Genus:** Brachymesia ## Interesting facts - As nymphs, they are formidable underwater predators, possessing a unique, extendable lower lip (labium) that shoots out to grab prey in a fraction of a second. - During intense midday heat, they can prevent overheating by raising their abdomens vertically in a behavior called the 'obelisk posture' to minimize sun exposure. - The name 'pennant' comes from their unique habit of perching at the tips of tall vegetation, where they flutter in the breeze like tiny flags. - While they tolerate freshwater, they are highly adapted to brackish water environments, which is relatively rare among North American dragonfly species. ## Special abilities - **Wind-Resistant Perching:** They use exceptionally strong tarsal claws to securely grip the tips of swaying reeds, allowing them to remain stable and scan for prey even in high-wind coastal environments. - **360-Degree Vision:** Equipped with massive compound eyes containing nearly 30,000 ommatidia, they can detect the slightest motion in almost any direction, making them highly efficient hunters. - **Aerobatic Mastery:** They can control each of their four wings independently, enabling them to hover, fly backward, and change direction instantly to intercept fast-flying insect prey. ## Measurements & details - **Incubation:** 5+ days ## Diet & Feeding Feeds almost exclusively on flying insects captured mid-air, utilizing its superior aerial agility to intercept prey. - **Age differences:** Aquatic nymphs feed on aquatic invertebrates like mosquito larvae and small tadpoles, whereas flying adults prey strictly on winged insects. - **Primary Foods:** Mosquitoes, Flies, Gnats, Moths, Small butterflies - **Foraging Method:** Pursuit ## Ecological connections - **Eaten by:** [Eastern Kingbird](https://www.snappit.app/explore/eastern-kingbird) (*Tyrannus tyrannus*) — Eaten by aerial birds that catch dragonflies on the wing. - **Hunts:** Saltmarsh Mosquito (*Aedes sollicitans*) — The Four-Spotted Pennant actively hunts and consumes saltmarsh mosquitoes over coastal wetlands. - **Eaten by:** [Green Treefrog](https://www.snappit.app/explore/green-treefrog) (*Hyla cinerea*) — Nymphs and roosting adults are opportunistic prey for wetland amphibians. ## Safety **Danger:** 1/5 · Very low No special safety notes yet. ## Frequently Asked Questions ### How to identify Four-Spotted Pennant? Compare wing shape and resting posture, where the eyes sit, body markings and the tail segments. Males and females can look very different in color. Dragonfly Identifier: upload a photo and compare the visible details. ### What does Four-Spotted Pennant eat? Feeds almost exclusively on flying insects captured mid-air, utilizing its superior aerial agility to intercept prey. ### Where is Four-Spotted Pennant usually found? Typically found in brackish coastal marshes, estuarine wetlands, and sluggish freshwater ponds or lakes with abundant emergent vegetation. ### How does Four-Spotted Pennant hunt? Pursuit ### How long do Four-Spotted Pennant eggs take to hatch? 5+ days ## Where to spot - [Ashley River Historic District](https://www.snappit.app/guides/places/ashley-river-historic-district) — South Carolina, US · Historic District - [East Wetumpka Commercial Historic District](https://www.snappit.app/guides/places/east-wetumpka-commercial-historic-district) — Alabama, US · Historic District - [City of Camden Historic District](https://www.snappit.app/guides/places/city-of-camden-historic-district) — South Carolina, US · Historic District - [Cockroach Bay Aquatic Preserve](https://www.snappit.app/guides/places/cockroach-bay-aquatic-preserve) — US · Nature Reserve [View all places to see Four-Spotted Pennant](https://www.snappit.app/guides/where-to-see/four-spotted-pennant) ## More Insects - [Common Eastern Bumble Bee](https://www.snappit.app/explore/common-eastern-bumble-bee) (*Bombus impatiens*) - [Spotted Lanternfly](https://www.snappit.app/explore/spotted-lanternfly) (*Lycorma delicatula*) - [Brown-belted Bumble Bee](https://www.snappit.app/explore/brown-belted-bumble-bee) (*Bombus griseocollis*) - [Eastern Carpenter Bee](https://www.snappit.app/explore/eastern-carpenter-bee) (*Xylocopa virginica*) --- Source: [Four-Spotted Pennant: Facts & Places to See — Snappit](https://www.snappit.app/explore/four-spotted-pennant)