''Gymnosoma nudifrons'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

fly Flies are insects of the Order (biology), order Diptera, the name being derived from the Ancient Greek, Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwing ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Tachinidae The Tachinidae are a large and variable family of true flies within the insect order Diptera, with more than 8,200 known species and many more to be discovered. Over 1,300 species have been described in North America alone. Insects in this family ...

Distribution

This

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 ...

species is present in most of

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 ...

Kazakhstan Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country located mainly in Central Asia and partly in Eastern Europe. It borders Russia to the north and west, China to the east, Kyrgyzstan to the southeast, Uzbeki ...

Transcaucasia The South Caucasus, also known as Transcaucasia or the Transcaucasus, is a geographical region on the border of Eastern Europe and Western Asia, straddling the southern Caucasus Mountains. The South Caucasus roughly corresponds to modern Arme ...

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 ...

(to

Far East The ''Far East'' was a European term to refer to the geographical regions that includes East and Southeast Asia as well as the Russian Far East to a lesser extent. South Asia is sometimes also included for economic and cultural reasons. The ter ...

) and

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

Habitat

These flies mainly inhabit hedge rows, wet meadows and roadsides.

Description

''Gymnosoma nudifrons'' can reach a length of .J.K. Lindse
Commanster
/ref> These parasitic flies have a black thorax and a spherical yellowish-red abdomen with reduced bristles and black markings, often large and triangle-shaped, sometimes touching. On the inner side of the eyes there are black stripes. The males of this species have yellowish dusting on the first part of the thorax. This species is very similar to '' Gymnosoma rotundatum''.Tuin-this
/ref>

Biology

Adults can be found from May to September. They feed on nectar and pollen of various flowers, especially of ''

Angelica sylvestris ''Angelica sylvestris'' or wild angelica is a species of flowering plant, native to Europe and central Asia. An annual or short-lived perennial growing to a maximum of , it has erect purplish stems and rounded umbels of minuscule white or pale p ...

'', ''

Tripleurospermum inodorum ''Tripleurospermum inodorum'', common names scentless false mayweed, scentless mayweed, scentless chamomile, wild chamomile, mayweed, false chamomile, and Baldr's brow, is the type species of Tripleurospermum. This plant is native to Eurasia and ...

'' and ''

Anthriscus ''Anthriscus'' (chervils) is a common plant genus of the family Apiaceae, growing in Europe and temperate parts of Asia. It comprises 15 species. The genus grows in meadows and verges on slightly wet porous soils. One species, '' Anthriscus cere ...

'' species. Larvae feed on

Pentatomidae Pentatomidae is a family of insects belonging to the order Hemiptera, generally called shield bugs or stink bugs. Pentatomidae is the largest family in the superfamily Pentatomoidea, and contains around 900 genera and over 4700 species.Robert G ...

References

External links

Evasion

Les insectes
Phasiinae Diptera of Europe Diptera of Asia Insects described in 1966 {{Phasiinae-stub