FIGURE 8 in A checklist of the satyrine genus Erebia (Lepidoptera) (1758–2006)

FIGURE 8: BCS Warren, his wife Joan and daughter Elizabeth at the top of the Simplon Pass, Switzerland, on the 4th of August 1933. Warren always used a folding butterfly net with a white net bag, clamped to the end of his walking stick; the socket with screw of this net can just be seen in Warren's right inside jacket pocket (photo: BCS Warren, courtesy of Elizabeth Warren).