multicolored Asian lady beetle

multicolored Asian lady beetle

Harmonia axyridis f. succinea

       
Order

Coleoptera (Beetles)

Family

Coccinellidae (Ladybird Beetles)

Nativity

Native to eastern Asia. Introduced and naturalized.

Season

Early spring to fall

Habitat

Meadows, fields, gardens, houses. Any place having plants with aphids.

Size

3 16 to 5 16


Larval Food

Aphids

 
Adult Food

Aphids, thrips, mites, scale insects, and eggs of butterflies and moths.


Identification

This is a 3 16 to 5 16 long ladybird beetle.

The body is oval and dome-shaped. The transition between the head and thorax plate (pronotum), and between the pronotum and the forewings (elytra) is smooth.

The pronotum is white with 4 black spots or patches that may blend together into a W or M pattern. This is the only reliable identifying feature in the field.

The thick, hardened, shell-like forewings (elytra) are highly variable. They may be orange with black spots, orange with no spots, or red with black spots. Fully spotted individuals have 10 black spots on each wing cover.

The legs are usually brown or reddish.


Life Cycle

Adults usually live 30 to 90 days, but may live up to 2 or 3 years. There are usually two generations per year. Adults seek warm places, like homes of humans, to hibernate over the winter.


Similar
Species

seven-spotted lady beetle (Coccinella septempunctata) elytra are spotted in a 1-4-2 pattern.

Two-spotted lady beetle (Adalia bipunctata) has orange elytra with 1 black spot on each side.


Sightings

Hastings Sand Coulee SNA

Mound Prairie SNA

Comments

The term lady beetle is more appropriate than ladybug because bug refers to insects in the order Hemiptera.


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  multicolored Asian lady beetle   multicolored Asian lady beetle        
               

Synonyms

 

   

Common
Names

multicolored Asian lady beetle

Multivariate Lady Beetle

Southern Lady Beetle

Japanese Lady Beetle

Asian Lady Beetle

Halloween Lady Beetle

Harlequin Ladybird Beetle

Pumpkin Ladybird Beetle

Pumpkin Ladybug

               

 

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