Brachytrupes membranaceus | |
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Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Orthoptera |
Suborder: | Ensifera |
Family: | Gryllidae |
Subfamily: | Gryllinae |
Tribe: | Gryllini |
Genus: | Brachytrupes |
Species: | B. membranaceus |
Binomial name | |
Brachytrupes membranaceus | |
Synonyms [1] | |
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Brachytrupes membranaceus, the tobacco cricket, is a species of cricket in the family Gryllidae. It is a pest of crops including young tobacco plants. There are four subspecies, all of which are native to Africa.
Four subspecies are recognised : [1]
The adult B. membranaceus has a plump brown body, a broad blunt head, long antennae and powerful legs. It has a head-and-body length of 4 to 5 centimetres (1.6 to 2.0 in). [2]
Brachytrupes membranaceus is nocturnal. It digs a burrow that may be 50 to 80 centimetres (20 to 30 in) deep, with chambers in which it stores food. The burrow is dug by the mandibles, and the fore-legs are used to move loose soil and push it out of the entrance. An adult cricket may form a mound up to 30 centimetres (12 in) in height beside the burrow entrance. [3]
The crickets live almost entirely underground, each in its own burrow. Mating takes place in the male's burrow and the female may remain there till the eggs are laid, in a walled-off side tunnel. [4] In Zimbabwe, breeding takes place in February and March. The female lays around two hundred eggs which hatch about a month later. The nymphs crawl out of the burrow and disperse, each digging a burrow of its own. At first the nymphs grow rapidly but growth slows during the dry season from June to October. When succulent young plant material becomes available in November, growth rates speed up, with adults emerging from December onwards. There is just one generation each year. [3]
The diet is grasses, succulent parts of plants and the suckers of trees such as Brachystegia and Isoberlinia . In cultivated areas, foodstuffs may include seedlings, transplanted plants, vegetables, tobacco, maize and field beans. Vegetable matter is carried underground and packed into storage chambers. It does not ferment, so it is probable that it is cut and allowed to wilt before being carried underground. [3] Overly dry material may be allowed to soften with dew before storage. [3]
Mole crickets are members of the insect family Gryllotalpidae, in the order Orthoptera. Mole crickets are cylindrical-bodied, fossorial insects about 3–5 cm (1.2–2.0 in) long as adults, with small eyes and shovel-like fore limbs highly developed for burrowing. They are present in many parts of the world and where they have arrived in new regions, may become agricultural pests.
Gryllinae, or field crickets, are a subfamily of insects in the order Orthoptera and the family Gryllidae.
The silverleaf whitefly is one of several species of whitefly that are currently important agricultural pests. A review in 2011 concluded that the silverleaf whitefly is actually a species complex containing at least 40 morphologically indistinguishable species.
The giant burrowing cockroach is also known as the rhinoceros cockroach, and Queensland giant cockroach. These cockroaches are native to Australia and mostly found in tropical and subtropical parts of Queensland. They are the world's heaviest species of cockroach and can weigh up to 30-35 grams and measure up to 7.5-8 cm (3.1 in) in length. It is a member of the family Blaberidae, which contains hundreds of species. It is part of the blaberid subfamily Geoscapheinae. It is prominent in the wild and can also be sold and kept as a pet.
Agrotis ipsilon, the dark sword-grass, black cutworm, greasy cutworm, floodplain cutworm or ipsilon dart, is a small noctuid moth found worldwide. The moth gets its scientific name from black markings on its forewings shaped like the letter "Y" or the Greek letter upsilon. The larvae are known as "cutworms" because they cut plants and other crops. The larvae are serious agricultural pests and feed on nearly all varieties of vegetables and many important grains.
Gryllotalpa gryllotalpa, commonly known as the European mole cricket, is widespread in Europe and has been introduced to the eastern United States. The scientific name is 'mole cricket', derived from the Latin 'gryllus' (cricket); and 'talpa' (mole), because of the fine dense fur which covers it and its subterranean habits, and because of the mole-like forelegs adapted for digging, a good example of convergent evolution.
Gryllus pennsylvanicus is known as the fall field cricket. G. pennsylvanicus is common in southern Ontario, is widespread across much of North America and can be found even into parts of northern Mexico. It tends to be absent in most of the southwestern United States including southern California. Within its geographic range this field cricket will burrow into soil in fields and forest edges. Individuals inhabit grassy disturbed areas and are often found around areas of human habitation.
Crickets are orthopteran insects which are related to bush crickets, and, more distantly, to grasshoppers. In older literature, such as Imms, "crickets" were placed at the family level, but contemporary authorities including Otte now place them in the superfamily Grylloidea. The word has been used in combination to describe more distantly related taxa in the suborder Ensifera, such as king crickets and mole crickets.
Myzus persicae, known as the green peach aphid, greenfly, or the peach-potato aphid, is a small green aphid belonging to the order Hemiptera. It is the most significant aphid pest of peach trees, causing decreased growth, shrivelling of the leaves and the death of various tissues. It also acts as a vector for the transport of plant viruses such as cucumber mosaic virus (CMV), potato virus Y (PVY) and tobacco etch virus (TEV). Potato virus Y and potato leafroll virus can be passed to members of the nightshade/potato family (Solanaceae), and various mosaic viruses to many other food crops.
Schizodactylus monstrosus or the maize cricket, is a species of large, robust cricket found in Asia, belonging to the family Schizodactylidae. It is found mainly in sandy habitats along rivers, and has large flattened tarsal extensions and wings that are curled at the tip, right above the cerci. They are nocturnal and show a high degree of variation in activity during the day and night. They hide in burrows that they dig on their own during the day.
Gryllotalpa orientalis is a species of mole cricket in the family Gryllotalpidae, commonly known as the oriental mole cricket. It is found in much of Asia and Australasia. At one time, this species was misidentified as G. africana and thought to have a widespread distribution in both Africa and Asia, but in the 1980s, G. orientalis was recognised as a separate species. It is a polyphagous pest, damaging crops by gnawing their roots.
Trichopoda pennipes is a species of feather-legged fly in the dipteran family Tachinidae.
Empoasca decipiens is a species of leafhopper belonging to the family Cicadellidae subfamily Typhlocybinae. The adults reach 3–4 millimetres (0.12–0.16 in) of length and a are homogenously green with whitish markings on its pronotum and vertex. E. decipiens is commonly referred to as the “green leafhopper” because of its colouration. The absence of clear stripes along the forewings can easily distinguish it from the similar leafhopper species E. vitis, but distinguishing it from other leafhoppers with the same colouration requires examination under a microscope. It is present in most of Europe, in the eastern Palearctic realm, in North Africa, in the Near East, and in the Afrotropical realm. Both nymphs and adults of this small insect are considered to be a very destructive pests on field crops, vegetables and greenhouse plants.
Schistocerca americana is a species of grasshopper in the family Acrididae known commonly as the American grasshopper and American bird grasshopper. It is native to North America, where it occurs in the eastern United States, Mexico, and the Bahamas. Occasional, localized outbreaks of this grasshopper occur, and it is often referred to as a locust, though it lacks the true swarming form of its congener, the desert locust.
Teleogryllus commodus, commonly known as the black field cricket, is a cricket species native to Australia.They are significant pests to most plants in Australia and New Zealand. T. commodus belongs to the order Orthoptera, the family Gryllidae which are characterized by wings that are folded on the side of the body, chewing mouthparts and long, thin antennae. T. commodus has the ability to learn via the recognition of rewards. In addition, they are also capable of odour recognition and thus can be taught via odour pairing.
Valanga nigricornis, the Javanese grasshopper, is a species of grasshopper in the subfamily Cyrtacanthacridinae of the family Acrididae. It is found in southeastern Asia, the type location being Singapore. It was first described by the German zoologist Hermann Burmeister in 1838. There are more than twenty subspecies, most of which are endemic to different island groups; the subspecies V. nigricornis nigricornis is the type for the genus Valanga.
Neoscapteriscus vicinus, the tawny mole cricket, is a species of insect in the mole cricket family, Gryllotalpidae. This species is native to South America and also occurs in the Southern United States, where it arrived as a contaminant of ship's ballast around 1900. Colombian insect taxonomist Oscar Cadena-Castañeda studied specimens of the genus which had been called Scapteriscus, and decided that it included two groups; a smaller group and a larger group that he named Neoscapteriscus in 2015. North American mole cricket taxonomists agreed with his decision and altered Orthoptera Species File Online accordingly.
Anurogryllus arboreus, the common short-tailed cricket or arboreal short-tailed cricket, is a species of cricket in the family Gryllidae. It is native to the southern and south-eastern United States where it lives in a burrow that it digs.
Anurogryllus muticus, also known as De Geer's short-tailed cricket or simply short-tailed cricket is a species of cricket in the family Gryllidae.
The New Zealand mole cricket is a wingless member of the mole cricket family Gryllotalpidae. Endemic to New Zealand, it lives underground and is rarely seen. It is now restricted to parts of the southern North Island.