''Eumerus'' is a genus of

hoverflies Hoverflies, also called flower flies or syrphids, make up the insect family (biology), family Syrphidae. As their common name suggests, they are often seen Hover (behaviour), hovering or nectaring at flowers; the adults of many species feed main ...

(

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Syrphidae), within the

tribe The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide use of the term in English is in the discipline of anthropology. The definition is contested, in part due to conflict ...

Eumerini The Eumerini is a tribe (biology), tribe of hoverflies. The breeding habits of this group varies: larvae of the genera ''Merodon'' and ''Eumerus'' tunnel into plant bulbs while larvae of ''Psilota'' have been found in sap runs. List of genera ...

. They are small with a distinctive smooth round abdomen, powerful back legs and yellow hairs around the scutellum. Others have a dark scutellum and yellow antennae. They have a flat hairy face and a reentrant upper crossvein on the wings. Some species are pests of ornamental flowers. The genus contains 281 known species, making it one of the largest genera of

flies 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 hindwin ...

Description

''Eumerus'' species are small to medium (5–12 mm), black hoverflies with a smooth wide, almost cylindrical body. The hind legs are remarkably powerful. They have

compound eyes A compound eye is a visual organ found in arthropods such as insects and crustaceans. It may consist of thousands of ommatidia, which are tiny independent photoreception units that consist of a cornea, lens, and photoreceptor cells which distin ...

with fine hairs that in the male cover most of the head, but in the female are parted over the forehead. The antennae are quite short, dark coloured or orange. The face is flat with downwardly directed hairs. The thorax has a few light longitudinal stripes on its back which are more visible in the front half. The legs are yellowish, or white and black, with the upper back legs usually greatly thickened (except '' Eumerus flavitarsis''), the lower part being curved and sharp, with expanded feet. The abdomen is roughly cylindrical, and clearly constricted at the boundaries between the various parts. The second, third and fourth part has silvery white or yellow oblique spots. In some species, the entire abdomen is a reddish brown. The wings are covered with fine hairs ( microtrichia) on the entire surface. Otherwise they are clear except for a brown-black wing mark. The front cross-vein along the outer edge of the wing has a pronounced kink in the middle.

Gallery

Lesser Bulb-fly (Eumerus funeralis) male (39094691500).jpg, '' Eumerus funeralis'' Eumerus cf. latitarsus.jpg, '' Eumerus latitarsus'' Eumerus paulae 2021-02-21 11-56.jpg, '' Eumerus paulae'' Eumerus strigatus, Deeside, North Wales, June 2015 2 (23257969082).jpg, '' Eumerus strigatus''

Taxonomy

Species

* '' Eumerus acuticornis'' Sack, 1933 * '' Eumerus ahmadii'' Barkalov-Gharali, 2005 * '' Eumerus albifacies'' Keiser, 1971 * '' Eumerus amoenus'' Loew, 1848 * '' Eumerus angustifrons'' Loew, 1848 * '' Eumerus argyropsis'' Bezzi, 1908 * '' Eumerus argyropus'' Loew, 1848 * '' Eumerus aristatus'' Peck, 1969 * '' Eumerus armenorum'' Stackelberg, 1960 * '' Eumerus armipes'' Bezzi, 1915 * '' Eumerus assimilis'' Doesburg, 1955 * '' Eumerus astropilops''

Hull Hull may refer to: Structures * The hull of an armored fighting vehicle, housing the chassis * Fuselage, of an aircraft * Hull (botany), the outer covering of seeds * Hull (watercraft), the body or frame of a sea-going craft * Submarine hull Ma ...

, 1964 * '' Eumerus astrovarius'' Speiser, 1913 * '' Eumerus aurifrons'' ( Wiedemann, 1824) * '' Eumerus axinecerus'' Speiser, 1910 * '' Eumerus barbarus'' ( Coquebert, 1804) * '' Eumerus basalis'' Loew, 1848 * '' Eumerus bayardi'' Séguy, 1961 * '' Eumerus bernhardi'' Lindner, 1969 * '' Eumerus bequaerti'' Herve-Bazin, 1913 * '' Eumerus bidentatus'' Keiser, 1971 * '' Eumerus breijeri'' Doesburg, 1955 * '' Eumerus brincki''

, 1964 * '' Eumerus caballeroi'' Gil Collado, 1929 * '' Eumerus canariensis'' Báez, 1982 * '' Eumerus capensis'' ( Curran, 1938) * '' Eumerus claripennis'' Coe, 1957 * '' Eumerus clavatus''

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 th ...

, 1923 * '' Eumerus coeruleus'' (

, 1913) * '' Eumerus compactus'' Doesburg, 1966 * '' Eumerus connexus''

, 1964 * '' Eumerus consimilis'' Simic & Vujic, 1996 * '' Eumerus discimanus'' Keiser, 1971 * '' Eumerus dolichocerus'' Speiser, 1915 * '' Eumerus dubius'' Báez, 1982 * '' Eumerus dux'' Violovitsh, 1981 * '' Eumerus efflatouni'' ( Curran, 1938) * '' Eumerus elaverensis'' Séguy, 1961 * '' Eumerus emarginatus'' Loew, 1848 * '' Eumerus erythrocerus'' Loew, 1858 * '' Eumerus etnenstttis'' van der Goot, 1964 * '' Eumerus excisus'' van der Goot, 1968 * '' Eumerus falsus''

, 1922 * ''

Eumerus feae ''Eumerus'' is a genus of hoverflies ( family Syrphidae), within the tribe Eumerini The Eumerini is a tribe (biology), tribe of hoverflies. The breeding habits of this group varies: larvae of the genera ''Merodon'' and ''Eumerus'' tunnel in ...

'' Bezzi, 1912 * '' Eumerus figurans''

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 * ...

, 1859 * '' Eumerus flavitarsis'' Zetterstedt, 1843 * '' Eumerus fumipennis''

, 1964 * '' Eumerus funeralis'' Meigen, 1822 * '' Eumerus graecus''

, 1921 * '' Eumerus grandis'' Meigen, 1822 * '' Eumerus griseus''

, 1964 * '' Eumerus gussakovskii'' Stackelberg, 1949 * '' Eumerus hispanicus'' van der Goot, 1966 * '' Eumerus hungaricus'' Szilády, 1940 * '' Eumerus hypopygialis'' Doesburg, 1966 * '' Eumerus imitatus'' Doesburg, 1955 * '' Eumerus integer'' Bezzi, 1921 * '' Eumerus jacobsoni''

, 1913 * '' Eumerus japonicus'' Matsumura, 1916 * '' Eumerus keizeri''

, 1964 * '' Eumerus kondarensis'' Stackelberg, 1952 * '' Eumerus lasiops'' Rondani, 1857 * '' Eumerus latitarsis'' Macquart in Webb & Berthelot, 1839 * '' Eumerus longicornis'' Loew, 1855 * '' Eumerus lucidus'' Loew, 1848 * '' Eumerus lugens'' Wiedemann, 1930 * '' Eumerus lunatus'' (

Fabricius Fabricius (, ) is a surname. Notable people with the surname include: *people from the Ancient Roman Fabricia gens, gens Fabricia: **Gaius Fabricius Luscinus, the first of the Fabricii to move to Rome * Johann Goldsmid (1587–1616), known by his ...

, 1794) * '' Eumerus macropygus'' Keiser, 1971 * '' Eumerus maculipennis'' Bezzi, 1915 * '' Eumerus malagasius'' Keiser, 1971 * '' Eumerus metatarsalis'' Doesburg, 1955 * '' Eumerus minotaurus'' Claussen & Lucas, 1988 * '' Eumerus muscidus'' Bezzi, 1921 * '' Eumerus narcissi'' Smith, 1928 * '' Eumerus nebrodensis'' Rondani, 1868 * '' Eumerus niehuisi'' Doczkal, 1996 * '' Eumerus niger'' Doesburg, 1955 * '' Eumerus nigroapicalis'' Keiser, 1971 * '' Eumerus nigrocoeruleus''

, 1964 * '' Eumerus nivariae'' Báez, 1982 * '' Eumerus niveitibia''

, 1921 * '' Eumerus nodosus''

, 1964 * '' Eumerus nudus'' Loew, 1848 * '' Eumerus obliquus'' (

, 1805) * '' Eumerus obscurus''

, 1964 * '' Eumerus obtusiceps''

, 1964 * '' Eumerus okinawaensis'' Shiraki, 1930 * '' Eumerus olivaceus'' Loew, 1848 * '' Eumerus ornatus'' Meigen, 1822 * '' Eumerus ovatus'' Loew, 1848 * '' Eumerus parasiticus'' ( Séguy, 1955) * '' Eumerus paulae'' Herve-Bazin, 1913 * '' Eumerus pauper''

, 1921 * '' Eumerus persarum'' Stackelberg, 1961 * '' Eumerus persicus'' Stackelberg, 1949 * '' Eumerus pipizoides'' Speiser, 1915 * '' Eumerus platycheiroides'' Keiser, 1971 * '' Eumerus pulchellus'' Loew, 1848 * '' Eumerus pumilio''

, 1964 * '' Eumerus purpureus'' Macquart in Webb & Berthelot, 1839 * '' Eumerus pusillus'' Loew, 1848 * '' Eumerus quadrimaculatus'' Macquart, 1855 * '' Eumerus ribidus''

, 1964 * '' Eumerus richteri'' Stackelberg, 1960 * '' Eumerus rubiginosus'' Herve-Bazin, 1913 * '' Eumerus rudebecki''

, 1964 * '' Eumerus ruficornis'' Meigen, 1822 * '' Eumerus rufipes'' Herve-Bazin, 1913 * '' Eumerus rusticus'' Sack, 1932 * '' Eumerus sabulonum'' ( Fallén, 1817) * '' Eumerus sakarahaensis'' Keiser, 1971 * '' Eumerus santosabreui'' Báez, 1982 * '' Eumerus scaber'' Bezzi, 1915 * '' Eumerus serratus'' Bezzi, 1915 * '' Eumerus sicilianus'' van der Goot, 1968 * '' Eumerus signatus'' Keiser, 1971 * '' Eumerus sinuatus'' Loew, 1855 * '' Eumerus sogdianus'' Stackelberg, 1952 * '' Eumerus speiseri''

, 1964 * '' Eumerus spinifer'' Doesburg, 1955 * '' Eumerus strigatus'' ( Fallén, 1817) * '' Eumerus subcaeruleus'' Keiser, 1971 * '' Eumerus sudanus'' ( Curran, 1938) * '' Eumerus sulcitibius'' Rondani, 1868 * '' Eumerus tadzhicorum'' Stackelberg, 1949 * '' Eumerus tarsalis'' Loew, 1848 * '' Eumerus tauricus'' Stackelberg, 1952 * '' Eumerus terminalis'' Santos Abréu, 1924 * '' Eumerus tessellatus''

, 1964 * '' Eumerus toamasinaensis'' Keiser, 1971 * '' Eumerus triangularis'' Herve-Bazin, 1913 * '' Eumerus tricolor'' (

, 1798) * '' Eumerus tridentatus'' Keiser, 1971 * '' Eumerus tumidipes'' Doesburg, 1966 * '' Eumerus tuberculatus'' Rondani, 1857 * '' Eumerus uncipes'' Rondani, 1850 * '' Eumerus unicolor'' Loew, 1858 * '' Eumerus vandenberghei'' Doczkal, 1996 * '' Eumerus vansoni'' Doesburg, 1955 * '' Eumerus varipennis'' ( Curran, 1938) * '' Eumerus vestitus'' Bezzi, 1912 * '' Eumerus villeneuvei'' Herve-Bazin, 1913 * '' Eumerus wainwrighti'' ( Curran, 1938)

References

External links

* {{Taxonbar, from=Q1758103 Hoverfly genera Eumerini Taxa named by Johann Wilhelm Meigen