Walther Hermann Richard Horn (19 October 1871 – 10 July 1939) was a German

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 entomologist who specialised in Coleoptera. He was born in Berlin

Berlin

Berlin is the capital city of Germany and is one of the 16 states of Germany. With a population of 3.45 million people, Berlin is Germany's largest city. It is the second most populous city proper and the seventh most populous urban area in the European Union...

, where he also died.

He was first a physician

Physician

A physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments...

 then Director of the German Entomological Institute.

Selected works

• 1890. Fam. Throscidae, Eucnemidae (part), pp. 193–256. in: F. D. Godman
  Frederick DuCane Godman
  Frederick DuCane Godman D.C.L., F.R.S., F.L.S., F.G.S., F.R.G.S., F.E.S., F.Z.S., M.R.I., F.R.H.S., M.B.O.U. was an English lepidopterist, entomologist and ornithologist....
  
   and O. Salvin
  Osbert Salvin
  Osbert Salvin FRS was an English naturalist, best known for co-authoring Biologia Centrali-Americana with Frederick DuCane Godman. This was a 52 volume encyclopedia on the natural history of Central America....
  
   (eds), Biologia Centrali-Americana
  Biologia Centrali-Americana
  The Biologia Centrali-Americana is an encyclopedia of the natural history of Mexico and Central America, privately issued in 215 parts from 1879 to 1915 by the editors Frederick DuCane Godman and Osbert Salvin, of the British Museum in London.This work is still fundamental for the study of...
  
  . Insecta, Coleoptera. Vol. III. Part 1. Porter, London.
• 1894. Fam. Eucnemidae (part) in: F. D. Godman and O. Salvin (eds), Biologia Centrali-Americana. Insecta, Coleoptera. Vol. III. Part 1. Porter, London.
• 1903. Zur Kenntnis der paläarktischen Cicindelen. Münchener koleopterologische Zeitschrift, 1(4):337-346.
• 1908. Coleoptera Adephaga. Fam. Carabidae Subfam. Cicindelinae. in: Wytsman P.
  Philogène Auguste Galilée Wytsman
  Philogène Auguste Galilée Wytsman was a Belgian ornithologist, entomologist and publisher most noted for his serial publications Genera Avium and Genera Insectorum....
  
  (ed.), Genera Insectorum. Fascicule 82A. P. Wytsman, Brussels, pp. 1–104, pls. 1–5.
• 1910. Coleoptera Adephaga. Fam. Carabidae Subfam. Cicindelinae. in: P. Wytsman (ed.), Genera Insectorum. Fascicule 82B. P. Wytsman, Brussels, pp. 105–208, pls. 6–15.
• 1915. Coleoptera Adephaga. Fam. Carabidae Subfam. Cicindelinae. in: P.Wytsman (ed.), Genera Insectorum. Fascicule 82C. P. Wytsman, Brussels, pp.209–486, pls. 16–23.
• 1926. Pars 86. Carabidae: Cicindelinae. IN: S. Schenkling (ed.), Coleopterorum Catalogus. W. Junk, Berlin, 345 pp.

Collection

Horn's collection World Cicindelidae including larvae Larven and general Coleoptera collections (North Africa

North Africa

North Africa or Northern Africa is the northernmost region of the African continent, linked by the Sahara to Sub-Saharan Africa. Geopolitically, the United Nations definition of Northern Africa includes eight countries or territories; Algeria, Egypt, Libya, Morocco, South Sudan, Sudan, Tunisia, and...

 (1896), Ceylon (1899), North

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

 and South America

South America

South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

 (1902) and Persian Gulf

Persian Gulf

The Persian Gulf, in Southwest Asia, is an extension of the Indian Ocean located between Iran and the Arabian Peninsula.The Persian Gulf was the focus of the 1980–1988 Iran-Iraq War, in which each side attacked the other's oil tankers...

 (1926) are conserved in the German Entomological Institute.