Empidinae, also called dance flies,[1] are a subfamily of empidoidflies. They belong to the Eremoneura, a lineage of flies whose larvae pass through three stages. The name “dance flies” comes from their mating swarms, formed by males or, in some species, by females; in many cases males present captured prey to females during these gatherings.[2] They are mainly predatory flies like most of their relatives, and generally small to medium-sized. Most species are flower visitors and they can be effective pollinators.[3]
Most dance fly species perform lek mating, where males give courtship gifts to females.[1] About a third of such species also have sex-specific markings, which include pinnate leg scales, darkened or enlarged wings, and inflatable abdominal air sacs.[1]
Genera
Most species of the Empidinae have long been placed in the large genera Empis and Rhamphomyia, separated by whether a particular wing vein (R4+5) forks near the tip.[2] Earlier work on Patagonian species also recognised smaller Neotropical genera, including Sphicosa, Clinorhampha, Macrostomus, Porphyrochroa, Lamprempis, and Opeatocerata.[2]
In South America the Empidinae fall into two broad sets: an Andean group in temperate Chile and Argentina, which shares features with Australian and New Zealand taxa, and a warmer-climate group in the wider Neotropics that includes Macrostomus, Porphyrochroa, Lamprempis, Opeatocerata, and some Empis.[2] Many Neotropical species remain undescribed, especially in Porphyrochroa. Recent taxonomy has revalidated Porphyrochroa as distinct from Macrostomus and added numerous new species in both.[2]
Empidinae are especially diverse in the Neotropical region. Fourteen genera are currently recognized worldwide, twelve of them recorded in the Neotropics and seven found only there.[2]
↑Smith, Kenneth G. V. (1969). "The Empididae of southern Africa (Diptera)". Annals of the Natal Museum19: 1–342.
↑ 5.05.15.25.35.45.5Collin, James Edward (1933). "Empididae". Diptera of Patagonia and South Chile4: viii + 334.
↑ 6.06.1Bezzi, M. (1909). "Beitrage zur Kenntnis der sudamerikanischen Dipterenfauna Fam. Empididae". Nova Acta Physico-medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosum91: 297–406.
↑ 11.011.1Collin, James Edward (1928). New Zealand Empididae based on material in the British Museum (Natural History). London: British Museum (Natural History). pp. viii + 110.
↑ 12.012.112.2Chandler, Peter J. (1998). Checklists of Insects of the British Isles (New Series) Part 1: Diptera. Handbooks for the Identification of British Insects. 12. London: Royal Entomological Society of London. p. 234. ISBN0-901546-82-8.
↑Bickel, Daniel J. (1996). "Thinempis, a new genus from Australia and New Zealand (Diptera: Empididae), with notes on the tribal classification of the Empidinae.". Systematic Entomology21 (2): 115–128. doi:10.1046/j.1365-3113.1996.d01-2.x. Bibcode: 1996SysEn..21..115B.