''Dasysyrphus'' is a genus of hover flies with 50 identified species distributed worldwide (see distribution map). While the genus is relatively easy to identify
genera key
the differences between species have a more narrow range of variations. Therefore, identification of species by images of specimens alone should be made with care. (See available keys below)

Larvae

The known larvae are mostly tree dwelling on both conifers and

deciduous trees In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, afte ...

. They feed on aphids and other small Hemiptera resting in the daytime. This nocturnal habit, plus the camouflage coloration of the larvae may account for the lack of larval reports for this genus.

Description

for taxonomic terms see Thompsonor Speight
br> These are medium-sized flies with a combination of characters: the margin of the abdomen grooved and dark with light spots present on tergites 2,3 and 4, haired eyes microtrichose wings (at least anteror third) with a elongate stigma, third vein ending at the apex of the wing, calypter with ventral lobe bare and a bare metasternum. ''Dasysyrphus'' wing abdominal spots

Resources for identification to species

*Bartsch et al. (2009) for Nordic countries, *Barkalov (2007) for Urals, Siberia and the Far East. *van Veen (2004) for Northwestern Europe *Van der Goot,V.S. (1981) Russia *Stubbs & Falk (1983) for Britain *Ghorpade (1994) for India (Ghorpade, 1994) *Peck(1974) for the

Palaearctic The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Sibe ...

Peck, L.V. (1988) Syrphidae. In: Soos, A. & Papp, L. (eds.) ''Catalogue of Palaearctic Diptera'', 8: 11-230. Akad.Kiado, Budapest. *Locke 2013

Nearctic The Nearctic realm is one of the eight biogeographic realms constituting the Earth's land surface. The Nearctic realm covers most of North America, including Greenland, Central Florida, and the highlands of Mexico. The parts of North America ...

ke
nearctic species key

Species

*'' D. albostriatus'' ( Fallén, 1817) *'' D. amalopis'' ( Osten Sacken, 1875) *'' D. bilineatus'' ( Matsumura, 1917) *'' D. corsicanus'' (

Becker Becker () is one of the German-language surnames, along with Bäcker and Baecker, that derive from the root, which refers to baking. The surname began as a name for a baker (and thus his family). In northern Germany it can also derive from the ...

, 1921) *'' D. creper'' (Snow, 1895) *'' D. eggeri'' ( Schiner, 1862) *'' D. friuliensis'' (van der Goot, 1960) *'' D. hilaris'' ( Zetterstedt, 1843) *'' D. intrudens'' ( Osten Sacken, 1877) *'' D. lapidosus'' Barkalov, 1990 *'' D. lenensis'' Bagatshanova, 1980 *'' D. limatus'' (Hine, 1922) *'' D. lotus'' ( Williston, 1887) *'' D.neovenustus'' Soszyński & Mielczarek, 2013 *'' D. nigricornis'' ( Verrall, 1873) *'' D.occidualis'' Locke & Skevington, 2013 *'' D. osburni'' ( Curran, 1925) *'' D. pacificus'' (Lovett) *'' D. pauxillus'' ( Williston, 1887) *'' D. pinastri'' ( De Geer, 1776) *'' D. postclaviger'' (Stys & Moucha, 1962) *'' D. reflectipennis'' ( Curran, 1921) *'' D. richardi'' Locke & Skevington, 2013 *'' D. tricinctus'' ( Fallén, 1817) *'' D. venustus'' ( Meigen, 1822)

References

{{Taxonbar, from=Q1759082 Hoverfly genera Taxa named by Günther Enderlein Syrphini