Dinidoridae | |
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Several species of Dinidoridae. [1] | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hemiptera |
Suborder: | Heteroptera |
Superfamily: | Pentatomoidea |
Family: | Dinidoridae Stål, 1867 |
Synonyms | |
Coridiinae Schumacher, 1924 |
Dinidoridae is a small family of hemipteran "true bugs" comprising about sixteen genera and a hundred species the Hemiptera suborder Heteroptera. [2] As a group the family does not have any common name. Until the late 19th century they were generally regarded as a subfamily of Pentatomidae. [3]
Most members of the family Dinidoridae are large and robust in build; the bodies of some species may exceed 27 mm in length. In shape they are ovoid to oblong. The head and pronotum have lateral keels. The scutellum is moderately short and blunt, typically some 50% of the abdominal length. [3]
The antennae have four or five segments, with at least two of the subapical segments more or less flattened. The antenniferous tubercles are set below the lateral head margins, and are not visible from above. The tarsi have two or three segments. In most genera trichobothria occur in pairs on the third to the seventh abdominal sterna, but Eumenotes species have only one trichobothrium per segment. Each pair of trichobothria is arranged transversely on a large callus mesad of the abdominal spiracles. [3]
The taxon corresponding to the modern family Dinidoridae was originally established by Stål in 1870 as the subfamily Dinidorida of the family Pentatomidae. Subsequent authorities such as Lethierry and Severin applied the name Dinidoridae, but in a subfamily sense in spite of the implication of the suffix "-dae". Twentieth century authorities treated the Dinidoridae as a distinct family, which now is the established view. [4]
Two subfamilies are generally recognised, the Dinidorinae and the Megymeninae. They may be distinguished as follows:
BioLib [5] lists six tribes (and also the unplaced fossil genus † Dinidorites Cockerell, 1921) in the two subfamilies:
The Dinidorinae Stål, 1868 includes the Dinidorini, which comprises tens of species, some with four-segmented and some with five-segmented antennae.
The tribe Thalmini contains three species, each in its own genus. All three species have two-segmented tarsi.
In the subfamily Megymeninae Amyot & Serville, 1843 the lateral margins of the abdomen and commonly also of the head and pronotum are produced into lobes, tubercles, or spines. In many species the pronotum bears a dorsal anteromedian tuberosity, or a posterior transverse ridge. In most species the legs are heavily and strongly spined; in others the antennae and legs are setulose.
Work continues in establishing the taxonomy of the family in the light of molecular genetics. [2] Current evidence suggests that Dinidoridae is in fact monophyletic and is a sister group to the Tessaratomidae. However the monogeneric tribe Eumenotini, including only the monotypic genus Eumenotes Westwood, had been seen as belonging in the Megymeninae. This however no longer seems defensible. The tribe actually looks closer to the Dinidorinae, but whether it should be assigned to Dinidorinae or to its own subfamily needs separate consideration. [2]
All Dinidoridae appear subsist strictly on the sap of host plants in various families, more than twenty in number. Known hosts include members of the following families, on some of which some of the species are recognised as pests: [6]
Dinidoridae occur mainly in far-eastern and African regions, but the genus Dinidor occurs in neotropical regions and species of Megymenum extend down to Australia. [4]
The Pentatomoidea are a superfamily of insects in the suborder Heteroptera of the order Hemiptera. As hemipterans, they possess a common arrangement of sucking mouthparts. The roughly 7000 species under Pentatomoidea are divided into 21 families. Among these are the stink bugs and shield bugs, jewel bugs, giant shield bugs, and burrower bugs.
Pentatomidae is a family of insects belonging to the order Hemiptera, generally called shield bugs or stink bugs. Pentatomidae is the largest family in the superfamily Pentatomoidea, and contains around 900 genera and over 4700 species. As hemipterans, the pentatomids have piercing sucking mouthparts, and most are phytophagous, including several species which are severe pests on agricultural crops. However, some species, particularly in the subfamily Asopinae, are predatory and may be considered beneficial.
Pyrrhocoridae is a family of insects with more than 300 species world-wide. Many are red coloured and are known as red bugs and some species are called cotton stainers because their feeding activities leave an indelible yellow-brownish stain on cotton crops. A common species in parts of Europe is the firebug, and its genus name Pyrrhocoris and the family name are derived from the Greek roots for fire "pyrrho-" and bug "coris". Members of this family are often confused with, but can be quickly separated from, Lygaeidae by the lack of ocelli on the top of the head.
Coreidae is a large family of predominantly sap-sucking insects in the Hemipteran suborder Heteroptera. The name "Coreidae" derives from the genus Coreus, which derives from the Ancient Greek κόρις (kóris) meaning bedbug.
Scutelleridae is a family of true bugs. They are commonly known as jewel bugs or metallic shield bugs due to their often brilliant coloration. With the name based on the Asian genus Scutellera, they are also known as shield-backed bugs due to the enlargement of the thoracic scutellum into a continuous shield over the abdomen and wings. This latter characteristic distinguishes them from most other families within Heteroptera, and may lead to misidentification as a beetle rather than a bug. These insects feed on plant juices from a variety of different species, including some commercial crops. Closely related to stink bugs, they may also produce an offensive odour when disturbed. There are around 450 species worldwide.
Nepidae is a family of exclusively aquatic Heteropteran insects in the order Hemiptera. They are commonly called water scorpions for their superficial resemblance to scorpions, due to their raptorial forelegs and the presence of a long slender process at the posterior end of the abdomen, resembling a tail. There are 14 genera in the family, in two subfamilies, Nepinae and Ranatrinae. Members of the genus Ranatra, the most widespread and species-rich genus, are sometimes called needle bugs or water stick insects as they are slenderer than Nepa.
Acanthosomatidae is a family of Hemiptera, commonly named "shield bugs" or "stink bugs". Kumar in his 1974 world revision recognized 47 genera; now this number is 55 genera, with about 200 species, and it is one of the least diverse families within Pentatomoidea. The Acanthosomatidae species are found throughout the world, being most abundant in high-latitude temperate regions and in subtropical regions at high altitudes.
Cydnidae are a family of pentatomoid bugs, known by common names including burrowing bugs or burrower bugs. As the common name would suggest, many members of the group live a subterranean lifestyle, burrowing into soil using their head and forelegs, only emerging to mate and then laying their eggs in soil. Other members of the group are not burrowers, and live above the soil layer, often in close association with plants. Several species are known as agricultural pests.
Alydidae, commonly known as broad-headed bugs, is a family of true bugs very similar to the closely related Coreidae. There are at least 60 genera and 300 species altogether. Distributed in the temperate and warmer regions of the Earth, most are tropical and subtropical animals; for example Europe has a mere 10 species, and only 2 of these occur outside the Mediterranean region.
Coreinae is a subfamily in the hemipteran family Coreidae. They have been shown to be paraphyletic with respect to Meropachyinae.
The Harpactorinae are a large subfamily of the Reduviidae. About 300 genera and 2,000 species worldwide have been described. Some of the species of the genera Zelus, Pselliopus, Sinea, and Apiomerus are of interest as biological pest control agents.
The Stenopodainae are a subfamily of Reduviidae. Often cryptically coloured, with prominent mandibular plates, antennal segment 1 generally strongly developed, remaining segments slender and often folded back under the first; hemelytron typically with large pentagonal or hexagonal cell in the corium. Approximately 113 genera are described, with most species found in the tropics. Many species are associated with soil or sand, and many are apterous.
Carpocoris purpureipennis is a species of shield bug of the family Pentatomidae, subfamily Pentatominae.
Phymata crassipes is a species of assassin and thread-legged bugs belonging to the family Reduviidae, subfamily Phymatinae.
Cantao is a genus of true bugs in family Scutelleridae and tribe Scutellerini.
Tessaratomidae is a family of true bugs. It contains about 240 species of large bugs divided into 3 subfamilies and 56 genera.
Cydninae is a subfamily of burrowing bugs in the family Cydnidae. There are about 11 genera and at least 40 described species in Cydninae.
Cyclopelta is a genus of Dinidorid bug found in Africa and Asia. There are 14 species in the genus with 8 found in Asia and 6 in Africa. Some species are known to form large aggregation on trees and can cause damage in a few trees of economic importance.
Megarididae is a family of true bugs in the superfamily Pentatomoidea. The family consists of a single extant genus Megaris with about 16 species restricted to the Neotropical Realm and a fossil is known from Dominican amber.
Salyavatinae are a subfamily of the assassin bugs. They have a pan-tropical distribution with about 16 genera. They have two foretarsal segments and have a patch of fine hairs known as the fossula spongiosa on the fore and mid tibia. Many species tend to have spines on the head, pronotum, legs and abdomen. A few species have the foretibia flattened into leaf-like structures.