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Rhopalidae, or scentless plant bugs, are a
Rhopalidae of Britain
Coreoidea
Heteroptera families
{{Coreoidea-stub
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
of true bug
Hemiptera (; ) is an order of insects, commonly called true bugs, comprising over 80,000 species within groups such as the cicadas, aphids, planthoppers, leafhoppers, assassin bugs, bed bugs, and shield bugs. They range in size from to around ...
s. In older literature, the family is sometimes called "Corizidae". They differ from the related coreids in lacking well-developed scent gland
Scent gland are exocrine glands found in most mammals. They produce semi-viscous secretions which contain pheromones and other semiochemical compounds. These odor-messengers indicate information such as status, territorial marking, mood, and sexu ...
s. They are usually light-colored and smaller than the coreids. Some are very similar to the orsilline lygaeids, but can be distinguished by the numerous veins in the membrane of the hemelytra. They live principally on weeds, but a few (including the boxelder bug) are arboreal
Arboreal locomotion is the Animal locomotion, locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some animals may scale trees only occasionally, but others are exclusively arboreal. Th ...
. All are plant feeders. The type genus for the family is: ''Rhopalus
''Rhopalus'' is a genus of hemiptera, true bugs in the family Rhopalidae, the scentless plant bugs.
Species
* ''Rhopalus conspersus''
* ''Rhopalus distinctus''
* ''Rhopalus lepidus''
* ''Rhopalus maculatus''
* ''Rhopalus parumpunctatus''
* ...
''.
Currently 30 genera and over 240 species of rhopalids are known. The oldest fossil rhopalids described are from the Middle Jurassic
The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from about 174.1 to 163.5 million years ago. Fossils of land-dwelling animals, such as dinosaurs, from the Middle Jurassic are relatively rare, but geological formations co ...
of Inner Mongolia
Inner Mongolia, officially the Inner Mongolia Autonomous Region, is an autonomous region of the People's Republic of China. Its border includes most of the length of China's border with the country of Mongolia. Inner Mongolia also accounts for a ...
, discovered from the Haifanggou Formation
The Haifanggou Formation (), also known as the Jiulongshan Formation (), is a fossil-bearing rock deposit located near Daohugou () village of Ningcheng County, in Inner Mongolia, northeastern China.
The formation consists of coarse conglomerates ...
. They are not considered economically important with a few species being pests of ornamental trees.
References
External links
Rhopalidae of Britain
Coreoidea
Heteroptera families
{{Coreoidea-stub