The Water Penny Beetle

                                   

                          The Water cent overhang

        The insect Im doing for my project is the Water Penny Beetle. The phylum of this insect is Arthropeda. The class is Insecta, the order is Coleoptera, and the family is Psephenidae. The Water Penny Beetle has extended flanges which resemble suction cu[s and have five pairs of finger-like gills on the front. Adults are brown or black oval with cushiony bodies measuring from 4.5 to 6 millimeters in length.

        The life cycle of the urine penny beetle lasts from 21 to 24 months. They deposit amongst 400 to 600 nut in a 5 curium square patch. The bright yellow eggs are from 0.5 to 2 millimeters in diameter. Egg laying usually occurs from June to late August, and hatching occurs in 12 to 15 days.

        After hatching, larvae grow rapidly, alimentation on small crustaceans and free-floating algae. The larvae dont feed or molt during the pastime winter but pupate during the next spring or summer. When maturation is delayed until fall, the larvae overwinter again and pupate the following spring.



Larvae pupate above water and may be damaged by high water levels or by wasps. Both virile and female adult beetles emerge from June to September, mate, and lay eggs immediately. Adults stop from 2 days to 1 week and eat itsy-bitsy or nothing.

        Water penny beetles larvae live wherever eggs are deposited and distributed by water flow. They usually adhere to the position or underside of rocks that project from the water in flow streams, on lake shores, or in rapids.

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