Eumerus


Eumerus is a genus of hoverflies, within the tribe Eumerini.
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.

Description

Eumerus species are small to medium, black hoverflies with a smooth wide, almost cylindrical body. The hind legs are remarkably powerful. They have compound eyes 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, 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 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.

Taxonomy

Species

Eumerus acuticornis Sack, 1933Eumerus ahmadii Barkalov-Gharali, 2005Eumerus albifacies Keiser, 1971Eumerus amoenus Loew, 1848Eumerus angustifrons Loew, 1848Eumerus argyropsis Bezzi, 1908Eumerus argyropus Loew, 1848Eumerus aristatus Peck, 1969Eumerus armenorum Stackelberg, 1960Eumerus armipes Bezzi, 1915Eumerus assimilis Doesburg, 1955Eumerus astropilops Hull, 1964Eumerus astrovarius Speiser, 1913Eumerus aurifrons Eumerus axinecerus Speiser, 1910Eumerus barbarus Eumerus basalis Loew, 1848Eumerus bayardi Séguy, 1961Eumerus bernhardi Lindner, 1969Eumerus bequaerti Herve-Bazin, 1913Eumerus bidentatus Keiser, 1971Eumerus breijeri Doesburg, 1955Eumerus brincki Hull, 1964Eumerus caballeroi Gil Collado, 1929Eumerus canariensis Báez, 1982Eumerus capensis Eumerus claripennis Coe, 1957Eumerus clavatus Becker, 1923Eumerus coeruleus Eumerus compactus Doesburg, 1966Eumerus connexus Hull, 1964Eumerus consimilis Simic & Vujic, 1996Eumerus discimanus Keiser, 1971Eumerus dolichocerus Speiser, 1915Eumerus dubius Báez, 1982Eumerus dux Violovitsh, 1981Eumerus efflatouni Eumerus elaverensis Séguy, 1961Eumerus emarginatus Loew, 1848Eumerus erythrocerus Loew, 1858Eumerus etnenstttis van der Goot, 1964Eumerus excisus van der Goot, 1968Eumerus falsus Becker, 1922Eumerus feae Bezzi, 1912Eumerus figurans Walker, 1859Eumerus flavitarsis Zetterstedt, 1843Eumerus fumipennis Hull, 1964Eumerus funeralis Meigen, 1822Eumerus graecus Becker, 1921Eumerus grandis Meigen, 1822Eumerus griseus Hull, 1964Eumerus gussakovskii Stackelberg, 1949Eumerus hispanicus van der Goot, 1966Eumerus hungaricus Szilády, 1940Eumerus hypopygialis Doesburg, 1966Eumerus imitatus Doesburg, 1955Eumerus integer Bezzi, 1921Eumerus jacobsoni Becker, 1913Eumerus japonicus Matsumura, 1916Eumerus keizeri Hull, 1964Eumerus kondarensis Stackelberg, 1952Eumerus lasiops Rondani, 1857Eumerus latitarsis Macquart in Webb & Berthelot, 1839Eumerus longicornis Loew, 1855Eumerus lucidus Loew, 1848Eumerus lugens Wiedemann, 1930Eumerus lunatus Eumerus macropygus Keiser, 1971Eumerus maculipennis Bezzi, 1915Eumerus malagasius Keiser, 1971Eumerus metatarsalis Doesburg, 1955Eumerus minotaurus Claussen & Lucas, 1988Eumerus muscidus Bezzi, 1921Eumerus narcissi Smith, 1928Eumerus nebrodensis Rondani, 1868Eumerus niehuisi Doczkal, 1996Eumerus niger Doesburg, 1955Eumerus nigroapicalis Keiser, 1971Eumerus nigrocoeruleus Hull, 1964Eumerus nivariae Báez, 1982Eumerus niveitibia Becker, 1921Eumerus nodosus Hull, 1964Eumerus nudus Loew, 1848Eumerus obliquus Eumerus obscurus Hull, 1964Eumerus obtusiceps Hull, 1964Eumerus okinawaensis Shiraki, 1930Eumerus olivaceus Loew, 1848Eumerus ornatus Meigen, 1822Eumerus ovatus Loew, 1848Eumerus parasiticus Eumerus paulae Herve-Bazin, 1913Eumerus pauper Becker, 1921Eumerus persarum Stackelberg, 1961Eumerus persicus Stackelberg, 1949Eumerus pipizoides Speiser, 1915Eumerus platycheiroides Keiser, 1971Eumerus pulchellus Loew, 1848Eumerus pumilio Hull, 1964Eumerus purpureus Macquart in Webb & Berthelot, 1839Eumerus pusillus Loew, 1848Eumerus quadrimaculatus Macquart, 1855Eumerus ribidus Hull, 1964Eumerus richteri Stackelberg, 1960Eumerus rubiginosus Herve-Bazin, 1913Eumerus rudebecki Hull, 1964Eumerus ruficornis Meigen, 1822Eumerus rufipes Herve-Bazin, 1913Eumerus rusticus Sack, 1932Eumerus sabulonum Eumerus sakarahaensis Keiser, 1971Eumerus santosabreui Báez, 1982Eumerus scaber Bezzi, 1915Eumerus serratus Bezzi, 1915Eumerus sicilianus van der Goot, 1968Eumerus signatus Keiser, 1971Eumerus sinuatus Loew, 1855Eumerus sogdianus Stackelberg, 1952Eumerus speiseri Hull, 1964Eumerus spinifer Doesburg, 1955Eumerus strigatus Eumerus subcaeruleus Keiser, 1971Eumerus sudanus Eumerus sulcitibius Rondani, 1868Eumerus tadzhicorum Stackelberg, 1949Eumerus tarsalis Loew, 1848Eumerus tauricus Stackelberg, 1952Eumerus terminalis Santos Abréu, 1924Eumerus tessellatus Hull, 1964Eumerus toamasinaensis Keiser, 1971Eumerus triangularis Herve-Bazin, 1913Eumerus tricolor Eumerus tridentatus Keiser, 1971Eumerus tumidipes Doesburg, 1966Eumerus tuberculatus Rondani, 1857Eumerus uncipes Rondani, 1850Eumerus unicolor Loew, 1858Eumerus vandenberghei Doczkal, 1996Eumerus vansoni Doesburg, 1955Eumerus varipennis Eumerus vestitus Bezzi, 1912Eumerus villeneuvei Herve-Bazin, 1913
  • ''Eumerus wainwrighti''