Blister beetles

April 22, 2018
contest: Macro Photography
€ 514
Blister beetles /media/flashcomm?action=mediaview&context=normal&id=41637
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Mak Azad
Bangladesh
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Blister beetles are members of a family of plant-feeding insects (Meloidae) that contain cantharidin, a toxic defensive chemical that protects them from predators. Accidentally crushing a beetle against the skin can result in a painful blister, the source of the insect’s common name. Blister beetles have long (3/4 to 1-1/4 inch) narrow bodies, broad heads, and antennae that are about 1/3 the length of their entire bodies. The front wings are soft and flexible in contrast to the hard front wings of most beetles.

In sufficient quantity, the cantharidin in the bodies of living or dead blister beetles can be toxic, and in some cases lethal, to horses, sheep, and cattle. The lethal dose is estimated to be between 0.5 and 1.0 mg of cantharidin per kilogram (2.2 lbs) of body weight. Cantharidin is very stable and remains toxic in dead beetles for a long time.

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5 comments from 4 voubsters
Mafijur Rahman   really a good one. inspire me to do some like this. keep it up!! man.
April 28, 2018 09:00:17 AM UTC
Mak Azad   Thanks A K Ronnie
April 24, 2018 06:19:53 PM UTC
Azim Khan Ronnie   10*10
April 24, 2018 10:41:40 AM UTC
Mak Azad   Thanks Diana Ivannova
April 23, 2018 07:08:45 PM UTC
Diana Ivanova   10
April 23, 2018 06:59:15 PM UTC
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