Oedemeridae

The family Oedemeridae is a cosmopolitan group of beetles commonly known as false blister beetles, though some recent authors have coined the name pollen-feeding beetles. There are some 100 genera and 1,500 species in the family,[1] mostly associated with rotting wood as larvae, though adults are quite common on flowers.

Oedemeridae
Oedemera lurida-4
Anogcodes seladonius on Anthemis tinctoria
Scientific classification
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Oedemeridae

Latreille, 1810
Subfamilies

Characteristics

Oedemeridae may be defined as slender, soft-bodied beetles of medium size found mostly on flowers and foliage. The head lacks a narrow neck, the antennae are long and filiform, the pronotum lacks lateral edges and is much narrower than elytra, the tarsi are heteromerous with bilobed penultimate segment, the procoxal cavities are open behind and the procoxae are conical and contiguous.

Natural history

The larvae of most genera are xylophagous, boring tunnels in spongy, damp wood in an advanced state of decomposition; thus they have little economic importance, with the exception of one species, the "wharf borer" (Nacerdes melanura), that is ever known to attain pest status, as its larvae bore into wet wood in coastal areas; larvae can also bore into wood located in the tidal zone so at times are submerged by seawater, and can damage docks, wharves, and pilings. Larvae of the genera Oedemera and Stenostoma develop in dead stems of herbaceous plants.

Adults contain the toxic cantharidin in their corporal fluids as a defensive mechanism; several species show brilliant and metallic blue, green, gold or coppery, often combined with yellow, orange or red, aposematic colourations. In temperate regions, adults are mainly polyphagous pollen and nectar-feeding, and diurnal in activity. In tropical areas, most are nocturnal and are attracted to light.

Parsley beetle 7377
Oedemerid on parsley

See also

References

  1. ^ Vázquez, X. A., 2002. European Fauna of Oedemeridae. Argania Edition, Barcelona, 178 pp. ISBN 84-931847-4-8

External links

Asclera (beetle genus)

Asclera is a genus of false blister beetles in the family Oedemeridae. There are about 6 described species in Asclera.

Asclerini

Asclerini is a tribe of false blister beetles in the family Oedemeridae. There are at least 70 described species in Asclerini.

Chrysanthia

Chrysanthia is a genus of beetles belonging to the family Oedemeridae subfamily Nacerdinae.

Ditylus

Ditylus is a genus of false blister beetles in the family Oedemeridae. There are at least four described species in Ditylus.

Eumecomera

Eumecomera is a genus of false blister beetles in the family Oedemeridae. There are at least three described species in Eumecomera.

Heliocis

Heliocis is a genus of false blister beetles in the family Oedemeridae. There is at least one described species in Heliocis, H. repanda.

Oedemera

Oedemera is a genus of beetles belonging to the family Oedemeridae subfamily Oedemerinae.

Oedemera nobilis

Oedemera nobilis, also known as the false oil beetle, thick-legged flower beetle or swollen-thighed beetle, is a beetle in the family Oedemeridae, a common species in Western Europe, including the south of England.

Oedemerinae

Oedemerinae are a subfamily of the false blister beetles (family Oedemeridae), also known as pollen-feeding beetles. The Nacerdinae are sometimes merged here.

The phylogeny of this family is not robustly deduced in detail. While traditionally three tribes are accepted, two of them are treated as monotypic by many if not by most modern authors; some however accept more genera, typically separating Oncomera from Oedemera for example. Though this may well be warranted in some way, the evolutionary relationships the Oedemerinae are generally in need of review, particularly considering the number of genera treated as basal or of entirely uncertain placement. Hence, a more conservative approach is adopted here until genus limits can be better defined in the entire subfamily.

Oxacis

Oxacis is a genus of false blister beetles in the family Oedemeridae. There are at least 30 described species in Oxacis.

Oxycopis

Oxycopis is a genus of false blister beetles in the family Oedemeridae. There are about 16 described species in Oxycopis.

Pollen beetle

Pollen beetle is an informal term for any species of beetle associated intimately with suitably pollen-rich species of flowers. Typically such a beetle is adapted to the pollen as a major part of its diet. Species in at least sixteen families of the order Coleoptera could be counted as pollen beetles, and "pollen beetle" also is a common name for some such species.

Prionoceridae

Prionoceridae is a small family of beetles, in the suborder Polyphaga. The form a group within the cleroid beetles and were formerly treated as a subfamily Prionocerinae within the family Melyridae. Very little is known of their life history but most species are pollen feeders as adults and occur in large numbers during spring or the host flowering season. Larvae are predatory or feed on decomposing wood.

Rhinoplatia

Rhinoplatia is a genus of false blister beetles in the family Oedemeridae. There are at least two described species in Rhinoplatia.

Tenebrionoidea

The Tenebrionoidea are a very large and diverse superfamily of beetles.

It generally corresponds to the Heteromera of earlier authors.

It contains these families:

Aderidae Winkler 1927 (ant-like leaf beetles)

Anthicidae Latreille 1819 (ant-like flower beetles)

Archeocrypticidae Kaszab 1964

Boridae C. G. Thomson 1859

Chalcodryidae Watt 1974

Ciidae Leach 1819 (minute tree-fungus beetles) (= Cisidae)

Melandryidae Leach 1815 (false darkling beetles)

Meloidae Gyllenhal 1810 (blister beetles)

Mordellidae Latreille 1802 (tumbling flower beetles)

Mycetophagidae Leach 1815 (hairy fungus beetles)

Mycteridae Blanchard 1845

Oedemeridae Latreille 1810 (false blister beetles)

Perimylopidae St. George 1939

Prostomidae C. G. Thomson 1859

Pterogeniidae Crowson 1953

Pyrochroidae Latreille 1807 (fire-colored beetles, etc.)

Pythidae Solier 1834

Ripiphoridae Gemminger and Harold 1870 (wedge-shaped beetles) (= Rhipiphoridae)

Salpingidae Leach 1815 (narrow-waisted bark beetles, etc.)

Scraptiidae Mulsant 1856 (false flower beetles)

Stenotrachelidae C. G. Thomson 1859 (false long-horned beetles) (= Cephaloidae)

Synchroidae Lacordaire 1859

Tenebrionidae Latreille 1802 (darkling beetles)

Tetratomidae Billberg 1820

Trachelostenidae Lacordaire 1859

Trictenotomidae Blanchard 1845

Ulodidae Pascoe 1869

Zopheridae Solier 1834 (ironclad beetles, cylindrical bark beetles, etc.)

Vasaces

Vasaces is a genus of false blister beetles in the family Oedemeridae. There are at least four described species in Vasaces.

Wharf borer

The wharf borer, Nacerdes melanura, belongs to the insect order Coleoptera, the beetles. They belong to the family Oedemeridae, which are commonly known as false blister beetles. Wharf borers are present in all the states of the USA except for Florida. It takes about a year to develop from an egg to an adult. The insect is called the 'wharf borer' because the larval stage of this insect is often found on pilings and timbers of wharves, especially along coastal areas. The adult beetles can be identified via a black band across the end of both elytra, or wing covers. In addition, wharf borers can be distinguished from other members of the family Oedemeridae via the presence of a single spur on the tibia of the forelegs, and the distance between both eyes (twice the length of one eye). Eggs are oviposited on rotten wood where larvae hatch and burrow to feed on rotten wood. Adults do not feed and depend on stored energy reserves accumulated during the larval stage. They are considered to be a pest because they damage wood used in building infrastructures.

Xanthochroa

Xanthochroa is a genus of false blister beetles in the family Oedemeridae. There are about seven described species in Xanthochroa.

Xanthochroina

Xanthochroina is a genus of false blister beetles in the family Oedemeridae. There are at least three described species in Xanthochroina.

Extant Coleoptera families

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