FIGURE 1 in The subgenus Sinephemera Kluge, 2004 in China (Ephemeroptera: Ephemeridae: Ephemera Linnaeus, 1758)

FIGURE 1. Larva of Ephemera (Sinephemera) axillaris. A–D: habitus: A. male (dorsal view); B. male (ventral view); C. female (dorsal view); D. female (ventral view); E. Head (dorsal view); F. abdominal segments I–II (lateral view, red arrows indicating the median tergal spines and ridges). Scale bar=1 mm.