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Asian Ladybug

Harmonia axyridis

Description:

Harmonia axyridis is a "typical" coccinellid beetle in shape and structure, being domed and having a "smooth" transition between its elytra (wing coverings), pronotum and head. It occurs in three main color forms: red or orange with black spots (known as form succinea); black with four red spots (form spectabilis); and black with two red spots (form conspicua). However, numerous intermediate and divergent forms have also been recorded. The beetle is typically large (7–8 mm long) and even more dome-shaped than native European species (these characteristics distinguish H. axyridis from native species in the UK). It often has white markings (typically defining an "M"- or "W"-shaped black area) on its pronotum, and usually brown or reddish legs .

Habitat:

This species was possibly established in North America as the result of introductions into the United States in an attempt to control the spread of aphids. Whatever the source, in the last two decades, this insect has spread throughout the United States and Canada and has been a prominent factor in controlling aphid populations. In the U.S., the first attempts to introduce it took place as far back as 1916. Repeated efforts were not successful. In the early 1980s, aphids were causing significant problems for growers of pecan trees, so the United States Department of Agriculture again attempted to bring the insect into the country—this time in the southeastern United States, using beetles brought from their native region in northeastern Asia. After a period of time, USDA scientists concluded that their attempts had been unsuccessful. However, a population of beetles was observed near New Orleans, Louisiana around 1988, though this may have been an accidental introduction event independent of the original, planned efforts. In the following years it quickly spread to other states, being occasionally observed in the Midwest within 5–7 years, and becoming common in the region by about 2000. The species was also established in the northwest by 1991, and the northeast by 1994, in the former case quite possibly involving additional introductions, rather than reaching there from the southeast. It is reported that it has heavily fed on soybean aphids (which recently appeared in the U.S. after coming from China), supposedly saving farmers vast sums of money in 2001.

Notes:

Thank you misako.hill for the name :)

1 species ID suggestions

misako
misako 6 years ago
Asian Ladybug
Harmonia axyridis Harmonia axyridis

9 Comments

LucBertrand
LucBertrand 6 years ago

Thank you misako.hill for the name :)

LucBertrand
LucBertrand 6 years ago

Thank you Isabela :) When I took this picture , i was very surprised at the effect of a 50mm lens reversed hahahaha I have this picture on my wall 8 by 10inch. I think it's my best macro up was present :))

Isabela
Isabela 6 years ago

Great macros!

LucBertrand
LucBertrand 7 years ago

Thank you Emma :) yes this is true, 30 years ago people had to be strong because all were very heavy. I also have a Sigma 70-230 of the same age and weight should be 5 pound ! It is very heavy and yet not very strong, my 70-300mm sigma I buy is 10 times more light and zoom away. But I think the construction of the older lenses were very much stronger. :)

Hema
Hema 7 years ago

Luc , I agree with you the Minoltas are awesome! We have a video recorder. The movie quality is just great. But the equipment is about 30 pounds! We do not use it anymore though. We use a lighter one instead.
i still remember your sparrow pic! very pretty!

LucBertrand
LucBertrand 7 years ago

thank you, I shoot it with an old 50mm lens Rokkor reverse. I am also impressed me results . I knew I had to keep my Minolta cameras :)

EdMarshall
EdMarshall 7 years ago

Some wonderful macro work here, very jealous!

LucBertrand
LucBertrand 7 years ago

Thank you very much AnnvanWijgerden :))

AnnvanWijgerden
AnnvanWijgerden 7 years ago

Wow, great photos!

Sherbrooke, Québec, Canada

Lat: 45.40, Long: -71.88

Spotted on Aug 30, 2011
Submitted on Aug 30, 2011

Reference

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