Addition I amplified this reference Walther Horn & Ilse Kahle, 1935-1937. Sonderdruck von Entomologische Beihefte Berlin-Dahlem. Band 3, p. 231.Über entomologische Sammlungen. Entomologen & Entomo-Museologie. Teil I-III The name Karl Rost appears on many Coleoptera labels and and in many publications but he seems to have avoided biography. I assume I got what I could from Horn & Ilse Kahle. I no longer have easy access to this work.Will now ask around my German colleagues and do more research.Bear with me I will heed your prompt. Notafly (talk) 19:32, 15 January 2026 (UTC) Have his dates now (1859–1918) will help Added more fragmentia Notafly (talk) 21:41, 15 January 2026 (UTC) Publication listing commenced.[]