''Cheilosia albipila'' is a

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

an and

Palearctic 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 ...

species of

hoverfly Hover flies, also called flower flies or syrphid flies, 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 ...

. Like most ''

Cheilosia ''Cheilosia'' is a genus of hoverfly. Most ''Cheilosia'' are black or largely un-coloured, lacking the bright colours and patterns of many hoverfly species. It is one of the most species diverse genera of hoverflies. The biology of many species i ...

'' it is black, and because of this may often be overlooked as a hoverfly. It is little recorded but probably widespread and common and maybe overlooked because adult flight periods are early in the year, before many hoverfly recorders are active.

Description

External images
Wing length 8·75-10·75 mm. The wings are unclouded. The entire pubescence is long and reddish. The tergites have a purple sheen. The antennae are clear orange, the tip sometimes slightly darkened. The face of the male with the central prominence sometimes peculiarly depressed at middle. Female has yellow femora and tarsi. The larva is illustrated by Rotheray (1993)

Distribution

It is distributed from

Scandinavia Scandinavia; Sámi languages: /. ( ) is a subregion#Europe, subregion in Northern Europe, with strong historical, cultural, and linguistic ties between its constituent peoples. In English usage, ''Scandinavia'' most commonly refers to Denmark, ...

to south of the

Pyrenees The Pyrenees (; es, Pirineos ; french: Pyrénées ; ca, Pirineu ; eu, Pirinioak ; oc, Pirenèus ; an, Pirineus) is a mountain range straddling the border of France and Spain. It extends nearly from its union with the Cantabrian Mountains to C ...

, and from

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

eastwards through much of northern and central

and European parts of

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

and central

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part of ...

Biology

Habitat tracks and clearings in forest and at the edge of woodland and tracks through carr. The

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ...

e of ''C. albipila'' feed inside the base of the stems of Marsh Thistles (''

Cirsium palustre ''Cirsium palustre'', the marsh thistle or European swamp thistle, is a herbaceous biennial (or often perennial) flowering plant in the family Asteraceae. ''Cirsium palustre'' is a tall thistle which reaches up to in height. The strong stems ha ...

') Adult Females lay eggs in the rosettes of mature plants in early spring when adults are most active. Usually there is only one larvae per plant and they feed by tunnelling up the

pith Pith, or medulla, is a tissue in the stem Stem or STEM may refer to: Plant structures * Plant stem, a plant's aboveground axis, made of vascular tissue, off which leaves and flowers hang * Stipe (botany), a stalk to support some other ...

y centre of the main thistles stem. The larvae mature about mid to late June in southern UK and then leave the plant to pupate in the soil around the thistle. Flight times of adults are Late February to May, peeking around mid April. Adults feed on ''Bellis'', ''Betula'', ''Caltha'', ''Cardamine'', ''Corylus'', ''Prunus spinosa'', ''Ribes uvacrispa'', ''Salix'', ''Taraxacum'', ''Tussilago'' and ''Vaccinium''.de Buck, N. (1990) Bloembezoek en bestuivingsecologie van Zweefvliegen (Diptera, Syrphidae) in het bijzonder voor België. ''Doc.Trav.'' IRSNB, no.60, 1-167.

References

{{DEFAULTSORT:Cheilosia Albipila Diptera of Europe Eristalinae Insects described in 1838 Taxa named by Johann Wilhelm Meigen