An overview of the world fauna
The family has two sub-families, Dasiopinae which contains the single genus Dasiops and the Lonchaeinae which contains seven genera. This taxonomic structure has been relatively stable for some time. Czerny (1934) raised the genus Chaetolonchaea and McAlpine (1962) added the genus Protoearomyia . Setisquamalonchaea was added by Morge in 1963 but is now regarded as a synonym of Silba (MacGowan & Tomoko 2013)
Dasiops Rondani, 1856
The subfamily Dasiopinae includes only this single genus, which is the second largest in the family, occurring in all zoogeographical regions, except Antarctica, with 128 described speciesThe second largest genus in the family, its named members are found most frequently in the Nearctic with about some 40 species identified to date, some 15 are known from the Palearctic with relatively few being recorded from Afirca, Asia and Australasia.
Earomyia Zetterstedt, 1842
Thirteen species are known from the Palaearctic and eight from the Nearctic; it is not presently recorded from other geographical areas. The larvae apparently have a range of developments sites with one group specialising in fir cone seeds, others are in thistle heads of the stems of plants
Protearomyia McAlpine, 1962
This genus has at present relatively few known representatives with some four species recorded from the Nearctic and 5 known from Europe.
Fulgenta MacGowan (Lonchaeinae: Earomyiini). An Afrotropical genus of 15 described species, but it is estimated
that up to 30 undescribed species may occur in the region.These are small, metallic green-blue flies, with a wing length of
2.5–3.1 mm; the antennal arista is pubescent to short plumose; the antennae are usually entirely black, but the postpedicel is
occasionally slightly orange-brown on the medial base, with a length to depth ratio ranging from 1.5–2.0:1; the legs are
black, with tarsomeres 1 and 2 pale and the apical tarsomeres darker; and the wing membrane is hyaline or occasionally with
apical brown shading. The genus is distributed from South Africa north to Ethiopia and from Nigeria in the west to Kenya
in the east. Based on the little information available, adults occur in habitats such as secondary woodland and lowland
evergreen primary forest at elevations of up to 1,200 m. An identification key to all known species was provided by
Lamprolonchaea Bezzi, 1920
This genus of brightly coloured metallic species has a mainly Oriental and Australasian distribution with two species known from Africa. There are at present 17 named species many of which have been described from islands of the Oceania region. One species L. smaragdi (Walker), has been found in the Mediterranean region and from northern Europe (Netherlands and Germany) where it occurs in association with imported fruit. It has recently been recorded from California, USA again perhaps due to accidental imporation
The largest genus - most abundant in the forest zones of the Paleractic (c70 species) and Nearctic (c72 species). Also present in Neotropics, Australasia and the Afrotropics.
Silba Macquart, 1851
Chaetolonchaea Czerny, 1934
A genus known at present only from the Nearctic and Palaearctic. Three species have been recorded from Europe. and two from the Nearctic. Life history largely unknown but there is s strong association with grassland habitats with one record of larvar having been found in a bulb.
This genus represents a New World counterpart to the Old World genus Silba, which is similar in appearance and ecology. Known species are mainly recorded from the Caribbean, Mexico, Colombia and Brazil and two occur in the Nearctic. Some 15 species are known and at least a further 60 unnamed species await description (McAlpine and Steyskal 1982). The larvae infest a range of fruit and vegetables either as primary invaders or perhaps more commonly as secondary invaders after attack by other dipteran groups such as Tephritidae. Not recorded from the Palaearctic apart from accidentals imported with fruit.