Richard Haensch was a German

Germans

The Germans are a Germanic ethnic group native to Central Europe. The English term Germans has referred to the German-speaking population of the Holy Roman Empire since the Late Middle Ages....

 entomologist and insect dealer 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...

.

Haensch collected in Bahia

Bahia

Bahia is one of the 26 states of Brazil, and is located in the northeastern part of the country on the Atlantic coast. It is the fourth most populous Brazilian state after São Paulo, Minas Gerais and Rio de Janeiro, and the fifth-largest in size...

 (1893/94), Minas Gerais

Minas Gerais

Minas Gerais is one of the 26 states of Brazil, of which it is the second most populous, the third richest, and the fourth largest in area. Minas Gerais is the Brazilian state with the largest number of Presidents of Brazil, the current one, Dilma Rousseff, being one of them. The capital is the...

 (1896/97) and Ecuador

Ecuador

Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

 (1899/1900). Minas Gerais

He wrote the section Familie Danaidae in Die Gross-Schmetterlinge der Erde 1909–1910, 5: 113–171, pls 31–41 edited by Adalbert Seitz

Adalbert Seitz

Adalbert Seitz was a German entomologist who specialised in Lepidoptera.He was the editor of Die Gross-Schmetterlinge der Erde . This is a sixteen volume work with four supplements published in German, French, and English. For details see Griffin, F. J....

 and published by Alfred Kernen. Stuttgart, Germany. His revision of the subfamily Ithomiinae is still the standard work. The types of the new taxa he described are in Museum für Naturkunde Berlin. Coleoptera and Arachnida supplied by his dealership are in the same museum. Hemiptera

Hemiptera

Hemiptera is an order of insects most often known as the true bugs , comprising around 50,000–80,000 species of cicadas, aphids, planthoppers, leafhoppers, shield bugs, and others...

(rarely available from dealerships) are in Staatliches Museum für Tierkunde Dresden

Staatliches Museum für Tierkunde Dresden

The State Museum of Zoology in Dresden is a natural history museum that houses 10,000-50,000 specimens, including skeletons and large insect collections. Many are types. The collection suffered war damage and whilst catalogued the database is not computerized. Loans are possible and material can...

 and Institute of Zoology, Polish Academy of Sciences, Warsaw (originally supplied to Natural History Museum, Stettin) and in the German Entomological Institute collection.