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Stephen Luk | profile | all galleries >> Arthropods of Ontario >> Class Insecta - Insects >> Order Coleoptera - Beetles >> Family Psephenidae - Water Penny Beetles tree view | thumbnails | slideshow

Family Psephenidae - Water Penny Beetles

The Psephenidae are best known by their trilobite-like larvae, which are common beneath stones in fast-flowing streams and rivers. The water pennies feed on algae while clinging tightly to the substrate. The adults linger about on rocks or emergent vegetation.
Ectopria nervosa
Ectopria nervosa		 Ectopria nervosa
Ectopria nervosa		 Ectopria sp. larva.
Ectopria sp. larva.		 Ectopria sp. larva
Ectopria sp. larva		 Ectopria sp. larva
Ectopria sp. larva
Ectopria sp. larva
Ectopria sp. larva		 Psephenus herricki
Psephenus herricki		 Psephenus herricki
Psephenus herricki		 Psephenus herricki
Psephenus herricki

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