The Donaciinae are a subfamily of the leaf beetles, or Chrysomelidae, characterised by distinctly long antennae. They are found in mainly the Northern Hemisphere, with some species found in the Southern Hemisphere.
Perillus is a genus of predatory stink bugs in the family Pentatomidae. There are about seven described species in Perillus.
Metachroma is a genus of leaf beetles in the subfamily Eumolpinae. It is distributed from Ontario, Canada to Mendoza, Argentina, including the Antilles. It has also been suggested that the genus extends to the Pacific Islands, though this is not confirmed. There are about 140 described species in Metachroma, 40 of which are found north of Mexico. An extinct species is also known from the Eocene of the United States.
Metachroma orientale is a species of leaf beetle. It is found in coastal states in the United States, ranging from Texas to Florida to Massachusetts. Its length is between 3.5 and 4.7 mm.
Metachroma interruptum is a species of leaf beetle. It is found in the United States, where its range spans from Texas to Florida and Indiana to Utah. Its length is between 4.4 and 6.0 mm.
Brachypnoea texana is a species of leaf beetle. It is found in North America. It was first described by the American entomologist Charles Frederic August Schaeffer in 1919.
Metachroma angustulum is a species of leaf beetle. It is found in the United States.
Rhabdopterus weisei is a species of leaf beetle. It is found in North America. It was originally described under the name Colaspis subaenea by the American entomologist Charles Frederic August Schaeffer in 1919. However, this name was already used for a species described by Martin Jacoby in 1890, so Schaeffer renamed his species to Colaspis weisei the following year. It was later moved to the genus Rhabdopterus by Herbert Spencer Barber in 1943.
Colaspis flavocostata is a species of leaf beetle from North America. It is found in the coastal states of the United States; its range spans from Mississippi to Florida and to South Carolina. It was first described by the American entomologist Charles Frederic August Schaeffer in 1933.
Metachroma carolinense is a species of leaf beetle. It is found in the United States.
Metachroma pellucidum is a species of leaf beetle. It is mostly found in coastal states of the United States, ranging from Texas to Florida to New York, but is also found inland to Indiana. Its length is between 3.4 and 3.8 mm.
Colaspis viriditincta is a species of leaf beetle from North America. It is distributed in Arizona and Mexico. It was first described by the American entomologist Charles Frederic August Schaeffer in 1919. The specific name, viriditincta, is derived from the Latin for "green-tinged".
Metachroma floridanum is a species of leaf beetle. Its distribution ranges from Florida to North Carolina in the United States.
Metachroma longicolle is a species of leaf beetle. It is found in the United States and Mexico. Its length is between 2.4 and 3.4 mm.
Metachroma luridum, the dark-sided metachroma, is a species of leaf beetle. It is found in Central America and North America. Its length is between 3.5 and 4.0 mm.
Colaspis crinicornis is a species of leaf beetle from North America. It primarily occurs in the Great Plains of the United States. It was first described by the American entomologist Charles Frederic August Schaeffer in 1933. Though it has not historically been considered a pest, population densities of the species have been increasing in corn and soybean over the last decade in southeastern Nebraska. A study has found C. crinicornis to be univoltine in the same region, and that it overwinters in soil as larvae. It has also been found that diets of corn or soybean leaves do not affect the consumption, longevity or fecundity of adult C. crinicornis.
Metachroma viticola is a species of leaf beetle. It is found along the Gulf Coast of the United States, particularly in Texas and Louisiana, and has also been reported from Mexico. Its length is between 4.0 and 5.8 mm. The species name, Latin for "grape vine dwelling", was chosen because the species was reported as injurious to grapes.
Colaspis viridiceps is a species of leaf beetle from North America. Its range spans from Arizona to New Mexico and south to Mexico. It was first described by the American entomologist Charles Frederic August Schaeffer in 1933.
Metachroma quercatum is a species of leaf beetle. It is found in the eastern United States, where its range spans from Texas to Florida and New York to Kansas. Its length is between 3.2 and 4.2 mm. The species is named after the scientific name of the oak (Quercus), one of the species' host plants.
Charles Frederic August Schaeffer was an American entomologist who specialized in beetles, particularly chrysomelids and weevils. He described 109 species in 91 genera and some species like Taphrocerus schaefferiNicolay & Weiss were described from his collections and named after him.
