# Cassius Blue (*Leptotes cassius*) The Cassius Blue is a small, beautiful butterfly with bright blue wings. They love to flutter around flowers and are often seen in sunny places. - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 6 - **Habitat:** Coastal areas ![Cassius Blue](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Cassius_blue_%28Leptotes_cassius_theonus%29_male.JPG&width=800) Photo: Charles J. Sharp, CC BY-SA 4.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Cassius_blue_%28Leptotes_cassius_theonus%29_male.JPG) ## Appearance The Cassius Blue has iridescent violet-blue upperwings in males, while females are duller blue to brown. Their undersides are greyish-white, marked with distinctive dark spots and a zigzag line, often featuring two tiny tails on each hindwing. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Lepidoptera - **Family:** Lycaenidae - **Genus:** Leptotes ## Interesting facts - Cassius Blue caterpillars often make a sweet liquid that attracts and rewards ants for protection! - The vibrant blue on the male's wings isn't paint, but tiny scales reflecting light like jewels! - These butterflies sometimes embark on long flights, journeying hundreds of miles to new territories. - Young Cassius Blue caterpillars munch on flowers, fruits, and seeds instead of just leaves! ## Special abilities - **Predator Decoy:** Cassius Blue has tiny tails and eye-spots on its hindwings that trick predators into attacking the wrong end, allowing them to escape. - **Hidden in Plain Sight:** Cassius Blue can fold its wings to show a patterned underside, helping it blend perfectly with leaves and bark to avoid detection. - **Rapid Generation Cycle:** Cassius Blue can complete its life cycle quickly, allowing many generations to hatch within a single warm year. ## Measurements & details - **Wingspan:** 20-30 mm - **Size:** 8-15 mm - **Lifespan:** 7-14 days - **Flight Speed:** 8 km/h - **Leg Count:** 6 ## Diet & Feeding Caterpillars munch on plant parts like flowers and fruits, while adult butterflies sip sweet nectar. - **Age differences:** Larvae (caterpillars) feed on various parts of host plants, but adults exclusively drink nectar from flowers. - **Primary Foods:** Flower Nectar, Senna Flowers, Pithecellobium Leaves, Acacia Seeds, Mimosa Pods - **Foraging Method:** Foraging ## Ecological connections - **Eaten by:** [House Sparrow](https://www.snappit.app/explore/house-sparrow) (*Passer domesticus*) — Birds prey on these butterflies. - **Symbiotic with:** Striped Acrobat Ant (*Crematogaster lineolata*) — Ants protect larvae for honeydew. - **Pollinates:** [Lantana](https://www.snappit.app/explore/lantana) (*Lantana camara*) — Adults visit flowers for nectar. - **Depends on:** Sicklepod (*Senna obtusifolia*) — Caterpillars feed on its flowers. ## Traits - [Social](https://www.snappit.app/explore/traits/social): Social animals live in organized groups, cooperating for survival benefits such as foraging, defense, and raising offspring. - [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors. - [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material. - [Pollinator Magnet](https://www.snappit.app/explore/traits/pollinator-magnet): Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms. - [Coastal](https://www.snappit.app/explore/traits/coastal): Coastal habitats are dynamic environments located along the interface between land and sea, influenced by tides, waves, and saltwater. - [Diurnal](https://www.snappit.app/explore/traits/diurnal): Diurnal animals are primarily active during daylight hours, typically resting or sleeping at night. - [Miniature](https://www.snappit.app/explore/traits/miniature): Pertaining to species that are significantly smaller than typical or average for their kind. - [Pollinator](https://www.snappit.app/explore/traits/pollinator): Describes organisms that transfer pollen, enabling the fertilization and reproduction of plants. ## Collections - [Insects](https://www.snappit.app/explore/collections/insects) ## Safety **Danger:** 1/5 · Very low Always watch butterflies from a distance so they feel safe and happy. ## Frequently Asked Questions ### How to identify Cassius Blue? Compare the wing outline, spots, bands, eyespots and wing edges. The underside can look completely different from the top. Check for tails, the antennae and where the markings sit instead of relying on color alone. Butterfly Identifier: upload a photo and compare the visible details. ### What is Cassius Blue's wingspan? 20-30 mm ### How big is Cassius Blue? 8-15 mm ### How long does Cassius Blue live? 7-14 days ### How fast can Cassius Blue fly? 8 km/h ### What does Cassius Blue eat? Caterpillars munch on plant parts like flowers and fruits, while adult butterflies sip sweet nectar. ### Where is Cassius Blue usually found? Coastal areas ### How does Cassius Blue hunt? Foraging ## Where to spot - [Harry P. Leu Gardens](https://www.snappit.app/guides/places/harry-p-leu-gardens) — Florida, US · Botanical Garden - [Key West Aquarium](https://www.snappit.app/guides/places/key-west-aquarium) — US · Zoo - [Deerfield Beach Arboretum](https://www.snappit.app/guides/places/deerfield-beach-arboretum) — Florida, US · Botanical Garden - [Florida Botanical Gardens](https://www.snappit.app/guides/places/florida-botanical-gardens) — Florida, US · Botanical Garden - [Key West Historic District](https://www.snappit.app/guides/places/key-west-historic-district) — Florida, US · Historic District - [Key West Tropical Forest & Botanical Garden](https://www.snappit.app/guides/places/key-west-tropical-forest-and-botanical-garden) — Florida, US · Botanical Garden [View all places to see Cassius Blue](https://www.snappit.app/guides/where-to-see/cassius-blue) ## 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: [Cassius Blue: Facts & Places to See — Snappit](https://www.snappit.app/explore/cassius-blue)