This tree diagram shows the relationships between several groups of organisms.
The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree. This ancestor diversified over time into several descendent subgroups, which are represented as internal nodes and terminal taxa to the right.
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The Eurygeniinae subfamily consist of three tribes, 30 recent genera and a single fossil genus. Among the Eurygeniinae are the largest representatives of the family Anthicidae with a total body lenght up to 18 mm. Body slender and elongate. Members of this subfamily are known from all biogeographic realms (with exception of the Antarctic), being most diverse in Australia, Nearctic and Neotropical regions. Many genera have been revised by M. Abdullah in the 1960-ies, but several of them with no doubt should be carefully re-examined and the status of several of the genera needs to be re-evaluated.
Frontoclypeal suture absent, frons gradually declivous. Mandibles broad and bidentate apically. Eyes large and anterior margin more or less distinctly emarginate. Neck broad, about 1/3 to 1/2 of maximum head width, coarsely strigose.
Anterior margin of pronotum with dorsal rim protruding and ventral rim distinctly narrower. Antebasal sulcus well developed.
Metacoxae contiguous or separated by narrow acute intercoxal projection of the first sternite.
Legs with distinct tibial spurs.
Male genitalia with phallobase and tegmen distinct. Penis free.
Key to most tribes and genera presented by Abdullah (1969).
Note: all taxa below are listed alphabetically.
- Eurygeniini LeConte, 1862
- Abdullahia Abdullah, 1968 - Africa
Atenizodes Gilmour, 1968 - Venezuela (Curacao island) (monotypic genus with uncertain status)
Bactrocerus LeConte, 1866 - Nearctic & Neotropical regions
Cadogenius Heller, 1918 - Neotropical region
Diacalla Pascoe, 1863 - Australia (monotypic genus)
Duboisius Abdullah, 1961 - Southern USA, Mexico
Egestrina Champion, 1916 - Australia
Eurygenius LaFerté-Sénectère, 1849 - Nearctic & Neotropical regions
Leptoremus Casey, 1904 - Southern USA (monotypic genus)
Macratriomima Champion, 1916 - Australia, New Guinea (monotypic genus)
Mastoremus Casey, 1895 - Southern USA
Micreurygenius Pic, 1942 - Brazil (monotypic genus)
Neoeurygenius Abdullah, 1963 - Southern USA
Neostereopalpus Abdullah, 1967 - Japan
Oisegenius Kirejtshuk, Nel, 2008 - fossil from Lebanese amber (monotypic genus)
Pergetus Casey, 1895 - USA, China
Pogonoceromorphus Pic, 1921 - Neotropical region (monotypic genus)
Pseudobactrocerus Abdullah, 1963 - USA (monotypic genus)
Pseudostereopalpus Abdullah, 1964 - Himalaya, Thibet, southern China (Yunnan) (monotypic genus)
Qadrius Abdullah, 1964 - Southern USA
Retocomus Casey, 1895 (= Ichthidion Haldeman, 1843) - USA
Rilettius Abdullah, 1964 - Nearctic & Neotropical regions
Stereopalpus LaFerté-Sénectère, 1849 (= Hypsogenia Semenov, 1893; = Stereopselaphus Gemminger, Harold, 1870) - USA, eastern Palaearctic region
Steriphodon Abeille der Perrin, 1894 - Afrotropical, SW Palaearctic, SW Oriental regions
Telesinus Fairmaire, 1903 (= Husainia Abdullah, 1968) - Madagascar
- Ictistygnini Borchmann, 1937
- Diacallina Champion, 1916 - West Africa (monotypic genus)
Egestria Pascoe, 1871 - Australia
Egestriomima Champion, 1916 - Australia
Ictistygna Pascoe, 1866 (= Eurygeniomorphus Pic, 1897) - Australia
Ictistygnina Champion, 1916 - Brazil (monotypic genus)
- Mitraelabrini Abdullah, 1969
- Mitraelabrus Solier, 1851 - Chile
Abdullah M. 1969. The Natural classification of the Family Anthicidae with Some Ecological and Ethological Observations (Coleoptera). - Deutsche entomologische Zeitschrift 16, No. 4/5: 323-366.
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Page copyright © 2011 Dmitry Telnov
All Rights Reserved.
- First online 06 January 2011
- Content changed 06 January 2011
Citing this page:
Telnov, Dmitry. 2011. Eurygeniinae. Version 06 January 2011 (under construction). http://tolweb.org/Eurygeniinae/145023/2011.01.06 in The Tree of Life Web Project, http://tolweb.org/