W. Fialkowski et E. Rosciszewska, MORPHOLOGY OF A FRESHLY HATCHED LARVA OF STONE FLY PERLA-PALLIDA GUERIN, 1838 (PLECOPTERA, PERLIDAE), Acta Biologica Cracoviensia. Series Zoologia, 36, 1994, pp. 31
Morphology of first instar nymph of Perla pallida Guerin 1838 was stud
ied under scanning electron microscope. The detailed description of a
freshly hatched larvula is given.