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The Red-spotted Admiral (Limenitis arthemis) has a wing spread of up to 3.5 inches as an adult which exhibits its multiple shades of blue.
The Pipevine Swallowtail (Battus philenor) is a species somewhat similar to the Red-spotted Admiral. This butterfly has blue wings but the top of the wings is back.
Holly Blue butterflies (Celastrina argiolus) have a bright color where blue is dominantt. The blue color of these butterflies has a violet nuance.
These butterflies (Cupido comyntas) are highly common in North America. Coloring differences between males and females might sometimes make correct species identification difficult.
The Long-tailed Skipper (Urbanus proteus) gets its name from its 2 long tails in the central area of its wings. This area is blue and so are its long tails.
The Summer Azure species (Celastrina neglecta) gets its name from its summertime colors which are bright and almost white in some cases.
Silvery Blue butterflies (Glaucopsyche lygdamus) are a common species across the US. These bright butterflies are seen in various states twice per year, typically early in the season.
Echo Azure butterflies (Celastrina echo) are seen in a few generations from spring to fall, especially if there are no freezing temperatures.
The Adonis Blue butterfly (Polyommatus bellargus) is a common species around the world. The male Adonis Blue gives the name of the species with its sky blue color and black wing margins.
Common in North America, this species (Icaricia icarioides) is seen in more than 25 subspecies, all with similar blue coloring.