''Chymophila'' is a

subgenus In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between t ...

of the

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 ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

Microdon Hover flies (family Syrphidae) of the genus ''Microdon'' are unusual among the Diptera. Like other members of the subfamily, they are myrmecophiles, meaning they inhabit the nests of ants. There are 249 species known worldwide, with the greate ...

''. It was previously considered to be exclusively

Neotropical The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropical terrestrial ecoregions of the Americas and the entire South American temperate zone. Definition In bioge ...

, but is now also known from the

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 t ...

and

Oriental The Orient is a term for the East in relation to Europe, traditionally comprising anything belonging to the Eastern world. It is the antonym of ''Occident'', the Western World. In English, it is largely a metonym for, and coterminous with, the ...

realms, and one species is known from

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. ''Chymophila'' was based on a composite

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

: the

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several ...

is a body of ''C. fulgens'' with the head of a conopid glued on.

Species

There are 33 species described in ''Chymophila'': Nearctic: * '' Microdon fulgens'' Wiedemann, 1830 (Synonyms: ''Microdon euglossoides'' Gray, 1832; ''Chymophila splendens'' Macquart, 1834) Neotropical: * ''

Microdon angulatus Hover flies (family Syrphidae) of the genus ''Microdon'' are unusual among the Diptera. Like other members of the subfamily, they are myrmecophiles, meaning they inhabit the nests of ants. There are 249 species known worldwide, with the greate ...

Hull Hull may refer to: Structures * Chassis, of an armored fighting vehicle * Fuselage, of an aircraft * Hull (botany), the outer covering of seeds * Hull (watercraft), the body or frame of a ship * Submarine hull Mathematics * Affine hull, in affi ...

, 1943 * ''

Microdon argentinae Hover flies (family Syrphidae) of the genus ''Microdon'' are unusual among the Diptera. Like other members of the subfamily, they are myrmecophiles, meaning they inhabit the nests of ants. There are 249 species known worldwide, with the greate ...

, 1937 * ''

Microdon aurifacius Hover flies (family Syrphidae) of the genus ''Microdon'' are unusual among the Diptera. Like other members of the subfamily, they are myrmecophiles, meaning they inhabit the nests of ants. There are 249 species known worldwide, with the greate ...

, 1937 * '' Microdon barbiellinii'' Curran, 1936 * '' Microdon bruchi'' Shannon, 1927 * '' Microdon cyaneiventris'' Macquart, 1846 (Synonym: ''Aphritis cyanoventris'' Williston, 1886 (misspelling)) * '' Microdon cyaneus'' Perty, 1833 * '' Microdon emeralda''

, 1943 * '' Microdon flavoluna''

, 1943 * '' Microdon histrio'' Wiedemann, 1830 * '' Microdon inaequalis'' Loew, 1866 * '' Microdon instabilis'' Wiedemann, 1830 (Synonyms: ''Aphritis dives'' Rondani, 1848; ''Microdon aurifex'' Wiedemann, 1830; ''Microdon trochilus''

Walker Walker or The Walker may refer to: People *Walker (given name) *Walker (surname) *Walker (Brazilian footballer) (born 1982), Brazilian footballer Places In the United States *Walker, Arizona, in Yavapai County *Walker, Mono County, California * ...

, 1852) * '' Microdon limbatus'' Wiedemann, 1830 * '' Microdon marceli'' Curran, 1936 * '' Microdon nero'' Curran, 1936 * '' Microdon nestor'' Curran, 1940 * '' Microdon opulentus''

Bigot Discrimination is the act of making unjustified distinctions between people based on the groups, classes, or other categories to which they belong or are perceived to belong. People may be discriminated on the basis of race, gender, age, relig ...

, 1883 * '' Microdon pulcher'' Williston, 1887 * '' Microdon shannoni'' Curran, 1940 * '' Microdon splendens'' Wiedemann, 1830 * '' Microdon stramineus''

, 1943 * '' Microdon superbus'' Wiedemann, 1830 * '' Microdon tigrinus'' Curran, 1940 * '' Microdon willistoni'' Mik, 1899 (Synonym: ''Microdon inermis'' Williston, 1888 (nec Loew, 1858)) Oriental: * '' Microdon aenoviridis'' Curran, 1931 * '' Microdon baramus'' Curran, 1942 * '' Microdon beatus'' Curran, 1942 * '' Microdon latiscutellaris'' Curran, 1931 * '' Microdon lativentris'' Meijere, 1921 (Synonym: ''Microdon grandis'' Curran, 1928) * '' Microdon lundura'' Curran, 1942 * '' Microdon stilboides''

, 1849 Palaearctic: * '' Microdon katsurai'' Maruyama & Hironaga, 2004

References

Insect subgenera Microdontinae Diptera of South America Diptera of North America Diptera of Asia Taxa named by Pierre-Justin-Marie Macquart {{Syrphidae-stub