Fig. 5 Lithoneura lameerei Carpenter, 1938 in On the phylogenetic position of the palaeopteran Syntonopteroidea (Insecta: Ephemeroptera), with a new species from the Upper Carboniferous of England

Fig. 5 Lithoneura lameerei Carpenter, 1938, holotype (No. MCZ 4537, Museum of Com- parative Zoology at Harvard University, Cambridge, MA, USA). a Detail photograph of left hind wing base. b Line drawing of left hind wing base. Scale bars 5 mm