The insects of the beetle family Chrysomelidae are commonly known as leaf beetles, and include over 37,000 species in more than 2,500 genera, making up one of the largest and most commonly encountered of all beetle families. Numerous subfamilies are recognized, but the precise taxonomy and systematics are likely to change with ongoing research.
The Eumolpinae are a subfamily of the leaf beetles, or Chrysomelidae. It is one of the largest subfamilies of leaf beetles, including more than 500 genera and 7000 species. They are oval, and convex in form, and measure up to 10 mm in size. Typical coloration for this subfamily of beetles ranges from bright yellow to dark red. Many species are iridescent or brilliantly metallic blue or green in appearance.
The Megalopodidae are a small family of leaf beetles, previously included as a subfamily within the Chrysomelidae. One of its constituent subfamilies, Zeugophorinae, has also frequently been treated as a subfamily within Chrysomelidae. The family contains approximately 30 genera worldwide, primarily in the nominate subfamily Megalopodinae, and mostly circumtropical.
The Disteniidae are a small family of beetles in the superfamily Chrysomeloidea, traditionally treated as a group within the Cerambycidae.
Xanthonia is a genus of leaf beetles in the subfamily Eumolpinae. It is distributed in North and Central America, and in East, Southeast and South Asia.
Thricolema is a genus of leaf beetles in the subfamily Synetinae. It contains only one species, Thricolema anomala, known from California and Oregon in the United States. Thricolema resembles Syneta, except that the adult females of Thricolema have simple tarsal claws, whereas adults of both sexes of Syneta have bifid claws. The body of an adult is elongated and fibrous. Adults are associated with Calocedrus decurrens.
Syneta betulae is a species of beetle from the family of leaf beetles, subfamily Synetinae.
Syneta is a genus of leaf beetles in the subfamily Synetinae. There are about 11 described species in Syneta. The genus is entirely holarctic in distribution, with species appearing in North America, Siberia, East Asia and Northern Europe.
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.
Trirhabda is a genus of skeletonizing leaf beetles in the family Chrysomelidae. There are more than 30 described species in Trirhabda. They are found in North America and Mexico.
Glyptoscelis is a genus of leaf beetles in the subfamily Eumolpinae. There are 38 species of Glyptoscelis described from North, Central and South America. There are also three species of Glyptoscelis known from the West Indies, though they are wrongly placed in the genus. In addition, a single species was described from Hunan, China in 2021.
Scelolyperus is a genus of skeletonizing leaf beetles in the family Chrysomelidae. There are more than 20 described species in Scelolyperus. They are found in North America, Mexico, and the Palaearctic.
Chrysodinopsis is a genus of leaf beetles in the subfamily Eumolpinae. It was first described by the Czech entomologist Jan Bechyné in 1950. There are three described species in Chrysodinopsis. The genus is possibly synonymous with Brachypnoea.
Metaparia is a genus of leaf beetles in the subfamily Eumolpinae. There are nine described species in Metaparia, distributed from the United States to Central America.
Colaspidea is a genus of leaf beetles in the subfamily Eumolpinae. It is known from North America and the Mediterranean. It has recently been suggested that the Mediterranean species of Colaspidea are a sister genus to Chalcosicya, and that Colaspina forms a sister genus to the former two combined. It has also been suggested that the North American species of Colaspidea may represent a separate genus.
Hemisphaerota is a genus in the subfamily Cassidinae in the family Chrysomelidae. There are about 10 described species in Hemisphaerota.
Graphops is a genus of leaf beetles in the subfamily Eumolpinae. There are 19 described species in Graphops, all from North America. Most species have limited flight capabilities, due to poorly developed wings, and at least one species is known to be flightless.
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.
Euryopini is a tribe of leaf beetles in the subfamily Eumolpinae.
Bromiini is a tribe of leaf beetles in the subfamily Eumolpinae. The tribe contains approximately 120 genera, which are found worldwide. They are generally thought to be an artificial group, often with a subcylindrical prothorax without lateral ridges and covered with setae or scales.
