Mythicomyiidae, commonly called mythicomyiids, are very tiny flies (0.5–5.0 mm) found throughout most parts of the world, especially desert and semi-desert regions, except the highest altitudes and latitudes. They are not as common in the tropics, but genera such as Cephalodromia and Platypygus are known from these regions. Many of these "microbombyliids" have a humpbacked thorax and lack the dense vestiture common in the Bombyliidae. Mythicomyiids have until recently not had much attention in the literature. Their small size has caused them to be missed when collecting. Yellow pan trapping and fine-mesh netting in Malaise and aerial sweep nets has resulted in a number of undescribed species from many parts of the world. A high diversity of both genera and species exists for this family in Africa, especially northern and southern portions. About 350 species are known. Hundreds more await description.
Agabus is a large genus of predatory aquatic beetles in the family Dytiscidae, proposed in 1817 by William Elford Leach and named after Agabus, an early follower of Christianity. The adult beetles are moderate-sized, 5 to 14 mm long. The genus is primarily Holarctic in distribution, with only a few species known from the Afrotropical and Neotropical realms. Three species of Agabus, namely A. clypealis, A. discicollis and A. hozgargantae are endangered according to the IUCN Red List. The division into subgenera is not widely accepted. However, a number of species groups are recognized after the works of David J. Larson and Anders N. Nilsson. The genus is probably polyphyletic or paraphyletic. In a recent study of mitochondrial DNA, Agabus was found paraphyletic with respect to several of the species groups of Platambus, a closely related genus in the tribe Agabini. Lately the taxonomy of the genus has been revised, and some groups of species were transferred from Agabussensu stricto to other genera in the tribe Agabini.
Ilybius is a large genus of predatory aquatic beetles in the family Dytiscidae. The genus is native to the Palearctic, the Near East, the Nearctic, and North Africa. 70 species has been described from this genus:
Hydroporus is a genus of water beetles native to the Palearctic, the Nearctic, the Near East, and North Africa. It contains the following species:
Bolitophila is the sole living genus in the Bolitophilidae, a family of Diptera in the superfamily Sciaroidea, with around 40 Palaearctic and about 20 Nearctic species, and three species from the Oriental region (Taiwan). They are small (6–9 mm.)
Timia is a genus of flies in the family Ulidiidae, which is difficult to separate from the genus Ulidia.
Zygomyia is a genus of fungus gnats in the family Mycetophilidae. There are at least 80 described species in Zygomyia.
Monoclona is a genus of fungus gnats in the family Mycetophilidae. There are about 18 described species in Monoclona.
Desmatoneura is a genus of bee flies in the family Bombyliidae. There are about 18 described species in Desmatoneura.
Ectrepesthoneura is a genus of fungus gnats in the family Mycetophilidae. There are more than 20 described species in Ectrepesthoneura.
Ditomyia is a genus of fungus gnats in the family Ditomyiidae.
Exechiopsis is a genus of fungus gnats in the family Mycetophilidae.
Allodiopsis is a genus of fungus gnats belonging to the family Mycetophilidae.
Anatella is a genus of flies belonging to the family Mycetophilidae.
Phthinia is a genus of flies belonging to the family Mycetophilidae.
Greenomyia is a genus of flies belonging to the family Mycetophilidae.
Brachypeza is a genus of flies belonging to the family Mycetophilidae.
Salentia is a genus of flies belonging to the family Therevidae.
