Gwendolyn Erdosh on Instagram: "Last week I found two species of Elaterids (click beetles) in the same genus, Semiotus. They were both in the same area and I caught both of them by hand, one mid-flight. The red one is Semiotus angulatus and the yellow and black one is Semiotus imperialis. Such beautiful beetles here in the Amazon at @manu.biostation ! #entomology #entomologist #beetles #elateridae"

Gwendolyn Erdosh on Instagram: "Check out this amazing bioluminescent beetle in the family Elateridae. It was found by @the.forest.experience at Curi-cancha reserve in MV, CR. They are not related to fireflies (fireflies are in the family Lampyridae) and separately evolved bioluminescence as a form of defense against predators. One fascinating thing is that unlike a lot of reactions that produce light, the chemical reaction found in these bioluminescent insects (oxidation of Luciferin) doesn’t p

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