The Malaise trap was initially constructed in the 1930s for collecting many groups of insects, including horseflies (Malaise, 1937, Entomol. Tidsk. 58: 148–160). This trap has undergone many changes and modifications (Townes, 1962, Proc. Entomol. Soc. Wash. 64: 253–262; Townes, 1972, Entomol. News 83: 239–247) that have increased its efficiency in collecting horseflies. In the last 50 yr, many trap types have been designed for collecting horseflies worldwide, and many studies have been conducted with different types of conventional traps in Europe, especially from faunistic perspectives. Malaise traps were used in several faunistic studies in Central Europe. During the 1970s, the efficiency of several types of Malaise traps for collecting horseflies in the United States was compared by Roberts (1970, Mosq. News 30: 567–571; Roberts, 1972, Mosq. News 32: 542–547). Often Malaise trap efficiency was enhanced by different attractants (i.e., ammonia, carbon dioxide, or octenol) to significantly improve trap efficiency....

You do not currently have access to this content.