. Contributions to Canadian biology . 128 MARINE AND FISHERIES EXPLANATION OF XIII. 5 GEORGE v., A 1915 Fig. 1. Hexagenia bilineata 2. Ecdyurus macuKpennis 3. Ecdyurus lucidipennis 4. Ecdyurus pullus 5. Ephemerella lineata Clemen?. PLATE XIV. Fig. 1. Ephemerella hicolor Clemens. Fig. 2. Bostis propinquus Walsh. Fig. 3. Cloion dubium Walsh. Fig. 4. Venation of wing pad of Siphlurus flexus Clemens. Fig. 5, Wings of Siphlurus flexus Clemens. Fig. 6. Fore-claw of nymph of Siphlurus flexus Clemens. Fig. 7. Fore-claws of imago of Siphlurus f
. Contributions to Canadian biology . 128 MARINE AND FISHERIES EXPLANATION OF XIII. 5 GEORGE v., A 1915 Fig. 1. Hexagenia bilineata 2. Ecdyurus macuKpennis 3. Ecdyurus lucidipennis 4. Ecdyurus pullus 5. Ephemerella lineata Clemen?. PLATE XIV. Fig. 1. Ephemerella hicolor Clemens. Fig. 2. Bostis propinquus Walsh. Fig. 3. Cloion dubium Walsh. Fig. 4. Venation of wing pad of Siphlurus flexus Clemens. Fig. 5, Wings of Siphlurus flexus Clemens. Fig. 6. Fore-claw of nymph of Siphlurus flexus Clemens. Fig. 7. Fore-claws of imago of Siphlurus flexus Clemens. Plate XV K.^J. aVA /y Fi(f. 1
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