Egg Masses of Nearctic Sericostomatid Caddisfly Genera (Trichoptera)

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Abstract
The unique egg masses of the three North American sericostomatid caddisfly genera are described and illustrated. Agarodes forms a tetrahedral egg mass; Fattigia and Gumaga produce egg masses with two subequal halves constricted at the middle and folded into a “V” and a “U” shape, respectively. Under certain circumstances, Gumaga can produce a spherical egg mass. These egg masses support the view that Fattigia and Agarodes should be considered separate genera.