| Issidae Temporal range: | |
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| Issus coleoptratus | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hemiptera |
| Suborder: | Auchenorrhyncha |
| Infraorder: | Fulgoromorpha |
| Superfamily: | Fulgoroidea |
| Family: | Issidae Spinola, 1839 |
| Subfamilies and Tribes | |
Issidae is a family of planthoppers described by Spinola in 1839, belonging to the order Hemiptera, suborder Auchenorrhyncha superfamily Fulgoroidea.
Species of this family are present throughout the Northern Hemisphere.
Issidae are small insects generally with a stocky body, as the wings mainly develop in width. Basic body coloration is not striking, usually shows brownish colors. The head has two ocelli. The forewings have strong pronounced ribs. They wrap the abdomen when the insect is at rest. The family originally included approximately 1000 species with 215 genera, but the systematics of Issidae remains uncertain, with many of the subfamilies having been recently removed to separate families, including Caliscelidae. Nogodinidae, and Tropiduchidae.
In 2013, scientists described a biologically unique set of mechanical gears in an Issus nymph, though identical structures are known in most planthoppers, and were known for decades [1] before the function of the gears was discovered [2] [3]
The family Issidae was once large and included many groups which are now treated in other families or as families themselves. These groups include the Caliscelidae, Nogodinidae, and Tropiduchidae (e.g., subfamilies Tonginae and Trienopinae). Around 2003, there was a view in favour of a single subfamily Issinae, but the current consensus is placement in four (as below). The Catalogue of Life [4] lists genera in five tribes Issini, Parahiraciini, Hemisphaeriini and Thioniini. The tribe Colpopterini [5] have now been placed in family Nogodinidae Melichar, 1898 having been raised to a subfamily. [6] The oldest fossil of the group is Cubicostissus of the Paleocene Menat Formation of France, belonging to the tribe Hysteropterini, molecular clock calibrations suggest a diversification during the Upper Cretaceous. [7]
Fulgoromorpha Lists On the Web [8] lists four subfamilies:
Authority: Melichar, 1906
Authority: Melichar, 1906; there are currently 59 genera including:
The monotypic subfamily contains the sole tribe IssiniSpinola, 1839 [9] and has a widespread distribution in Europe, the Middle East and temperate Asia. [10] There are currently ten genera:
Authority: Melichar, 1906 There are currently 3 tribes and 16 genera: [11] [12]
Twenty genera are currently placed here:
Uphodato Szwedo 2019, Krundia Szwedo 2019 and Breukoscelis Szwedo 2019 from the Bembridge Marls, England dating Eocene (Priabonian) were considered members of this family upon description, however, other authors have found assignation to Issidae dubious. [7]
Ricaniidae is a family of planthopper insects, containing over 400 species worldwide. The highest diversity is in tropical Africa and Asia and in Australia, with a few species occurring in the Palearctic and Neotropical realms. It is one of the smaller families in the planthopper superfamily Fulgoroidea.
Flatidae are a family of fulgoroid planthoppers. They are cosmopolitan in distribution and are distinguished from others in the superfamily by a combination of characters. Like all other planthoppers, they suck phloem sap of plants. Some species are known to communicate with vibrations through the plant stems. Communication may be with mates, or with ants that tend the nymphs, protecting them and gathering honeydew secretions. Adults of some species have brightly coloured forewings which are tougher and known as tegmina unlike the membranous hindwings which are used for flight. Although a few can be identified by their coloration, most species requires dissection and examination under a microscope with access to literature on already described species.
Nogodinidae is a family of planthoppers. They have membranous wings with delicate venation and can be confused with members of other Fulgoroid families such as the Issidae and Tropiduchidae. Some authors treat it as a subfamily of the Issidae.
Caliscelidae is a family of planthoppers, sap-sucking insects that belong to the order Hemiptera, suborder Auchenorrhyncha and superfamily Fulgoroidea. They are somewhat anomalous and have often been included within the family Issidae. Studies made in 2013 of the phylogeny of the Issidae and other groups using molecular techniques support the treatment of the group as a separate family. Sexual dimorphism can be marked. Some members of the family are called piglet bugs due to the shape of their snout. A particularly aberrant genus described in 2011 from India, Formiscurra, has males that resemble ants.
Cixiinae is a planthopper subfamily in the family Cixiidae. It is one of three such subfamilies, the other two being the Bothriocerinae and the Borystheninae. While a few species had been tested in a larger study of the Fulgoroidea, neither the Cixiinae nor its tribes were analysed cladistically until 2002. Resolution of tribal relationships is incomplete and additional testing of the tribes with samples larger than one per tribe is needed.
Lophopidae is a family of fulgoroid plant-hoppers with most species found in tropical South America and Asia.
Gergithus is a genus of tropical Asian planthoppers in the family Issidae, erected by Carl Stål in 1870. Like all planthoppers, adults feed on plant sap and are capable of escaping by leaping. The genus like other members in the tribe appears somewhat rounded and beetle-like, in some cases, with a mimetic resemblance to ladybird beetles. Species are mostly distributed in the Indomalayan Realm.
The Elicini are a tribe of planthoppers in the family Tropiduchidae. The type genus is Elica.
Achilidae is a family of planthoppers, sometimes called "achilids" in the order Hemiptera. There are at least 520 described species in Achilidae.
Tropiduchinae is a subfamily of tropiduchid planthoppers in the family Tropiduchidae.
Elicinae is a subfamily of tropiduchid planthoppers in the family Tropiduchidae, with Elica the type genus.
Dictyopharinae is a subfamily of dictyopharid planthoppers in the family Dictyopharidae. There more than 100 genera and 500 described species in Dictyopharinae.
Acanaloniidae is a family of planthoppers. It is sometimes treated as a subfamily of Issidae.
The Hysteropterinae are a subfamily of bugs in the family Issidae, based on the type genus Hysteropterum. Species in 59 genera have been recorded in Europe, Africa, and Asia. One species, Agalmatium bilobum, is now also found as an invasive species in the United States, especially in California.
The Hemisphaeriinae are a subfamily of bugs in the family Issidae, based on the type genus Hemisphaerius. Species in 119 genera have been recorded in most continents, but the greatest diversity appears to be in South-East Asia.
The Flatinae are a subfamily of planthoppers, erected by Maximilian Spinola in 1839. Genera have been recorded from all continents except Antarctica: especially in tropical and subtropical regions.
Tropiduchus is a genus of planthoppers, recorded from Africa and Malesia.
Mnemosyne is a genus of planthoppers in the subfamily Cixiinae, erected by Carl Stål in 1866; it is the only extant type genus of the tribe Mnemosynini. Species are recorded from: South America, Africa, the Indian subcontinent, SE Asia and Australia.
The Nogodininae are a sub-family of tropical planthoppers erected by Leopold Melichar in 1898. The recorded distribution is: South America, Africa and the Middle East, South and SE Asia through to Australia.
| Authority control databases: National |
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