| Metaxyonycha | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Infraorder: | Cucujiformia |
| Family: | Chrysomelidae |
| Subfamily: | Eumolpinae |
| Tribe: | Eumolpini |
| Genus: | Metaxyonycha Chevrolat in Dejean, 1836 |
| Type species | |
| Colaspis testacea | |
| Synonyms | |
Metaxyonycha is a genus of leaf beetles in the subfamily Eumolpinae.
Metaxyonycha was first named by Louis Alexandre Auguste Chevrolat in 1836, with the spelling "Metazyonycha", in Dejean's Catalogue of Coleoptera. According to Bousquet et al. in 2013, Metaxyonycha is an incorrect subsequent spelling of Metazyonycha. However, because the subsequent spelling is in prevailing usage and is attributed to the original spelling's publication, "Metaxyonycha" is considered the correct spelling. [1]
In some publications for the Neotropical realm, Metaxyonycha is also known as " Colaspis ". This was because the Czech entomologist Jan Bechyné had synonymised Metaxyonycha with Colaspis, after incorrectly assuming the two had the same type species, while splitting the species of Colaspis listed in the Coleopterorum Catalogus (a beetle catalog edited by Wilhelm Junk and Sigmund Schenkling) into a separate genus known as "Maecolaspis". As a result, Bechyné was using the name Colaspis for what was actually Metaxyonycha. [3]
The following species belong to the genus Metaxyonycha (or Colaspis sensu Bechyné): [4] [5]
The following species are synonyms: [7]
Colaspis is a genus of leaf beetles in the subfamily Eumolpinae. It is one of the largest genera in the subfamily, containing over 200 species, and it is known from both North and South America. A number of species from this genus are considered to be pests, such as the grape colaspis. Some species are known from the fossil record from the Eocene of Colorado in the United States.
Eumolpini is a tribe of leaf beetles in the subfamily Eumolpinae. It is the largest tribe in the subfamily, with approximately 170 genera found worldwide. Members of the tribe almost always have a longitudinal median groove on the pygidium, which possibly helps to keep the elytra locked at rest. They also generally have a subglabrous body, as well as appendiculate pretarsal claws.
Rhabdopterus is a genus of leaf beetles in the subfamily Eumolpinae. There are about 70 described species in Rhabdopterus from North and South America, eight of which are found north of Mexico. The Nearctic species may not be congeneric with the type species, which is South American.
Zenocolaspis is a genus of leaf beetles in the subfamily Eumolpinae. It is known from North America and South America. There are at least two described species in Zenocolaspis. The genus is very similar to Colaspis, but the body is smaller and the eyes are strongly convex and prominent externally.
Spintherophyta is a genus of leaf beetles in the subfamily Eumolpinae. Most species in the genus are found in Central and South America, but there are also a few North American species.
Typophorus is a genus of leaf beetles in the subfamily Eumolpinae. There are at least 52 described species in Typophorus. Similar genera include Paria and Tijucana. Typophorus itself is probably polyphyletic.
Typophorini is a tribe of leaf beetles in the subfamily Eumolpinae. The tribe contains approximately 100 genera, which are found worldwide. Members of the tribe are mainly characterized by notches on the tibiae of the middle and hind legs, which are sometimes referred to as antenna cleaners. They also generally have a subglabrous body, as well as bifid pretarsal claws.
Prionodera is a genus of leaf beetles in the subfamily Eumolpinae. It is known from Central and South America.
Allocolaspis is a genus of leaf beetles in the subfamily Eumolpinae.
Percolaspis is a genus of leaf beetles in the subfamily Eumolpinae. It is distributed in South America and Central America, though it has also been reported from southern Florida in the United States. It is associated with the plant families Rubiaceae and Fabaceae in Central America.
Callicolaspis is a genus of leaf beetles in the subfamily Eumolpinae. It is known from South America. It was formerly considered a synonym of Lycaste Gistel, 1848, but in 2003 it was restored as a separate genus. Lycaste itself was later found to be an unnecessary replacement name for Chalcophana, and the name Eupetale was established for the species formerly placed under Lycaste.
Freudeita is a genus of leaf beetles in the subfamily Eumolpinae. It is found in South America. The genus is dedicated to the German entomologist Heinz Freude.
Antitypona is a genus of leaf beetles in the subfamily Eumolpinae. It is found in Central America and South America.
Nycterodina is a genus of leaf beetles in the subfamily Eumolpinae. It is known from South America.
Chalcophana is a genus of leaf beetles in the subfamily Eumolpinae.
Nodocolaspis is a genus of leaf beetles in the subfamily Eumolpinae. It is known from Central America and South America. The genus was first established by the Czech entomologist Jan Bechyné in 1949, as a relative of Nodonota containing species formerly placed in Colaspis.
Deuteronoda is a genus of leaf beetles in the subfamily Eumolpinae. It is known from Central America and South America.
Coytiera is a genus of leaf beetles in the subfamily Eumolpinae. It is distributed in South America.
Chalcoplacis is a genus of leaf beetles in the subfamily Eumolpinae. It is distributed in South America.