''Zavrelia'' is a genus of

Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...

an non-biting midges in the subfamily

Chironominae Chironominae is a subfamily of midges in the non-biting midge family (biology), family (Chironomidae). Genera *Tribe Chironomini **''Axarus'' Roback 1980 **''Baeotendipes'' Jean-Jacques Kieffer, Kieffer, 1913 **''Beckidia'' Ole A. Sæther, Sæth ...

of the bloodworm family

Chironomidae Chironomidae , commonly known as non-biting midges or chironomids , are a family of Nematoceran flies with a global distribution. They are closely related to the families Ceratopogonidae, Simuliidae, and Thaumaleidae. Although many chironomid ...

. The genus is named in honour of

Jan Zavřel Jan Zavřel (5 May 1879 – 3 June 1946) was a Czech zoologist and entomologist. He served as a dean and rector of Masaryk University in Brno. He was a specialist on the Chironomidae and the insect genera '' Zavrelia'' and '' Zavreliella'' are nam ...

. Species of the

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

are small to minute chironomids, which are recorded from both continents of the northern hemisphere. All known larvae of ''Zavrelia'' construct small, straight transportable cases of sand, silt, detritus and sometimes

diatoms A diatom (Neo-Latin ''diatoma'') is any member of a large group comprising several Genus, genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of Earth's B ...

that function as retreats until the mature

pupa A pupa (; : pupae) is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous: they go through four distinct stages in their life cycle, the stages th ...

swims to the surface prior to its adult emergence.

Species

*'' Z. aristata'' Torbjørn & Stur, 2009 *'' Z. casasi'' Torbjørn & Stur, 2009 *'' Z. clinovolsella'' Guo & Wang, 2004 *'' Z. hudsoni'' Torbjørn & Stur, 2009 *'' Z. pentatoma''

Kieffer Kieffer is a surname. Notable people with the surname include: * Aldine Silliman Kieffer (1840–1904), American music writer * Charles Kieffer (1910–75), American athlete * Eduardo Gudiño Kieffer (1935–2002), Argentine writer * Guy-An ...

& Bause in Bause, 1914 *'' Z. sinica'' Torbjørn & Stur, 2009 *'' Z. tusimatijea'' (Sasa & Suzuki, 1999)

References

Chironomidae Diptera of Europe {{Chironomidae-stub