''Dasysyrphus hilaris'' is a

Palearctic The Palearctic or Palaearctic is a biogeographic realm of the Earth, the largest of eight. Confined almost entirely to the Eastern Hemisphere, it stretches across Europe and Asia, north of the foothills of the Himalayas, and North Africa. Th ...

hoverfly Hoverflies, also called flower flies or syrphids, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the l ...

. It is a member of a

cryptic species complex In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each oth ...

which includes '' Dasysyrphus venustus'' the most frequent and widely distributed species of the genus.Bogusław Soszyński, Lukasz Emil Mielczarek and Adam Tofilski, 2013 ''Dasysyrphus neovenustus'' sp. n. (Diptera: Syrphidae) a new species in the ''venustus'' species group''Polish Journal of Entomology'' (''Polskie pismo Entomologiczne'') tom 82, numer
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''Dasysyrphus hilaris'' is known with a level of certainty only from Ireland, Great Britain, Norway, France (Vosges, Alps, Pyrenees) and Liechtenstein.This species cannot be determined using existing keys.

References

{{Taxonbar, from=Q10754124 Diptera of Europe Syrphini Insects described in 1843 Taxa named by Johan Wilhelm Zetterstedt