Portal:Arthropods/Did you know/27

... that, despite its name, the freshwater crab Potamon ibericum (pictured) does not live in Iberia?
... that tiny Paederus beetles may have caused some of the ten Plagues of Egypt?
... that with a 150-millimetre (5.9 in) wingspan, Sinomeganeura is small for the griffenfly family Meganeuridae, known for species with spans over 700 mm (28 in)?
... that Petrolisthes eriomerus, when trying to escape from a predator, can cast off limbs as a diversion, with the claws of a cast limb still gripping vigorously after separation?
... that the discovery of the extinct golden silk orb-weaver species Nephila jurassica extended the fossil record of the genus by 130 million years?
... that the extinct moth Epiborkhausenites is noted for having very similar colour patterning to the living species Tubuliferola josephinae and Hofmannophila pseudospretella?