Career
During his career, he was associated with the Zoologischen Forschungsinstitut (Zoological Research Institute) and Forschungsmuseum Alexander Koenig in Bonn. Lehrs is the binomial author of the following species/subspecies of lizards:
Gallotia caesaris (Boettger"s lizard), (1914). Named in honor of German malacologist Caesar Rudolf Boettger.
Parvilacerta fraasi (Fraas" lizard), (1910).
Lacerta ionica (1902), synonymous with Podarcis tauricus (Crimean wall lizard). The name Podarcis tauricus ionicus is regarded as a subspecies.