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Red-eared Blister Beetle

Lytta auriculata


Mating black beetles with two large, red blisters behind their heads with a red dot on the top of the head. You can see the large size difference between the male and female. The female is the larger of the two at about 14mm long with a larger gap between the red blisters. The male was about 7mm long.


Yellow bush lupine (Lupinus arboreus) in Oak woodland/Chaparral transitional habitat. This species is found in the SW US and Mexico.

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Thank you Brian! The variance between males and females can be so dramatic and varied :-)

Brian38 3 years ago

Great spotting Cindy! Amazing size difference.

Ramona, California, United States

Spotted on Jun 1, 2020
Submitted on Jun 2, 2020

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