Carl Ludwig Koch (21 September 1778 – 23 August 1857) was a German entomologist and arachnologist. He was responsible for classifying a great number of spiders, including the Brazilian whiteknee tarantula and Common house spider. He was born in Kusel, Germany and died in Nuremberg, Germany.
Carl Ludwig Koch was an inspector of water and forests. His principal work Die Arachniden (1831–1848) (16 volumes) was commenced by Carl Wilhelm Hahn (1786–1836). Koch was responsible for the last twelve volumes. He also finished the chapter on spiders in Faunae insectorum germanicae initia oder Deutschlands Insecten (Elements of the insect fauna of Germany) a work by Georg Wolfgang Franz Panzer (1755–1829).
He also co-authored, with Georg Karl Berendt, an important monograph Die im Bernstein befindlichen Myriapoden, Arachniden und Apteren der Vorwelt (1854) on arachnids, myriapods and wingless insects in amber based on material in Berendt's collection, now held in the Museum für Naturkunde, Berlin.
Do not confuse with his son Ludwig Carl Christian Koch (1825–1908) who also became a well-known entomologist.Die Pflanzenläuse, Aphiden. Lotzbeck, Nürnberg 1857.
Übersicht des Arachnidensystems. Zeh, Nürnberg 1837–50.
Deutschlands Crustaceen, Myriapoden und Arachniden. Pustet, Regensburg 1835–44.
Die Arachniden. Zeh, Nürnberg 1831–48.
System der baierischen Zoologie. Nürnberg, München 1816.(A general work on the zoology of Bavaria of some importance in bird taxonomy.
Roesler, Rudolf: Karl Ludwig Koch (1778-1857). in Oberpfälzer Heimat. Auflage 42, Weiden 1997/98.