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Summer Azure (Celastrina neglecta)

Detailing the physical features, habits, territorial reach and other identifying qualities of the Summer Azure

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Image Credit: Arch Baker
Full-sized image of the Summer-Azure-Butterfly Thumbnail image of the Summer-Azure-Butterfly
Image Credit: Arch Baker
Full-sized image #2 of the Summer-Azure-Butterfly Thumbnail image #2 of the Summer-Azure-Butterfly

Seen after the heat of summer has reached its peak, the Summer Azure is lighter version of its springtime kin.

Updated: 07/15/2021; Authored By Staff Writer; Content ©www.InsectIdentification.org
Many types of Azures have such similar features that it is difficult to tell them apart. The Summer Azure is a brighter white, less 'dingy' species that is seen after July has begun. The white wings have faint black rings along the underside's edge with a tiny black dot centered in each one. Curved dashes and marks litter the forewing and hindwing. The top side of the wing is mostly white though it may look dingy, and a black border almost surrounds each wing, getting quite thick by the tips. The smaller hindwings have white rings on the black edging.

Caterpillars feed on the leaves of roses, Spirea and other shrubs, as well as Gray Dogwood trees. Look for this species in mid- to late summer, but enjoy all types of similar-looking azures from spring through autumn.

General Characteristics
Capability, Shape, Texture/Pattern, Benefits, Dangers
Flying insect icon
Patterned insect icon


Taxonomic Hierarchy
Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Insecta
      Order: Lepidoptera
        Family: Lycaenidae
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          Genus: Celastrina
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            Species: neglecta
Identifying Information
Size, Colors, Features
Scientific Name: Celastrina neglecta
Category: Butterfly or Moth
Size (Adult; Length): 23mm to 29mm (0.90" to 1.14")
Colorwheel Graphic Colors: white, black
Descriptors: white, black, gray, tinge, rings, dots, curvy marks, flying

Relative Size Comparison
Typical Size Between 23mm (0.9in) and 29mm (1.1in)
Lo: 23mm
Md: 26mm
Hi: 29mm
Territorial Map*
U.S., Canada, and Mexico
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Territory map graphic of the country of Mexico
Contiguous United States shape map layer graphic
Prince Edward Is.  
* MAP NOTES: The territorial heat map above showcases (in red) the states and territories of North America where the Summer Azure may be found (but is not limited to). This sort of data is useful when attempting to see concentrations of particular species across the continent as well as revealing possible migratory patterns over a species' given lifespan. Some insects are naturally confined by environment, weather, mating habits, food resources and the like while others see widespread expansion across most, or all, of North America. States/Territories shown above are a general indicator of areas inhabited by the Summer Azure. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.


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