Portal:Arthropods/Did you know/16

... that a young Lernaeocera branchialis is an ectoparasitic crustacean on the gills of a flounder or lumpsucker, and it moves on to cod or related fishes after it has matured and mated (infested gills of a whiting pictured)?
... that the black-margined loosestrife beetle was introduced to North America for biological pest control against the invasive purple loosestrife?
... that the type specimen of the extinct whip scorpion Graeophonus carbonarius was originally identified as a species of dragonfly?
... that the coral reef crab Zosimus aeneus contains deadly poisonous neurotoxins?
... that the extinct Phlebotominae sandfly Pintomyia falcaorum is known only from Miocene age Dominican amber found on Hispaniola?
... that although true bugs eat aphids, they help the aphids by eating another predator, young lacewings?