"Carl Geyer (1796\u20131841) was a German entomologist who wrote and illustrated various supplements to Jacob H\u00FCbner s works on Lepidoptera.Carl Geyer was by profession an artist. He is not to be confused with Charles Andreas Geyer (1809\u20131853), a botanist and plant collector."@en . "1841Z"^^ . "Geyer, Carl"@en . "German entomologist" . "1796Z"^^ .