Requested reference

Panzer, G. W. F. (1804b). Systematische Nomenklatur über weiland Herrn Dr. Jacob Christian Schäffers natürlich ausgemahlte Abbildungen regensburgischer Insekten. Erlangen, 160 pp. [the plate and figure numbers refer to (partly unnamed) species, figured by Schäffer, presumably in 1791 (or 1766), see Univ. Göttingen and doi 10.5962/bhl.title.9162 (plates here are not complete)] doi:10.5962/bhl.title.101964 download pdf -- Show included taxa