Amphipsalta zelandica | |
---|---|
A chorus cicada, Amphipsalta zelandica | |
Song of the chorus cicada | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hemiptera |
Suborder: | Auchenorrhyncha |
Superfamily: | Cicadoidea |
Family: | Cicadidae |
Genus: | Amphipsalta |
Species: | A. zelandica |
Binomial name | |
Amphipsalta zelandica (Boisduval, 1835) | |
Synonyms | |
|
The chorus cicada, Amphipsalta zelandica, is the most common species of cicada in New Zealand, where it is endemic and found in most areas. They typically live in forests and areas with open bush, where their left-over nymph skins can be seen on tree trunks and branches during the summer months. The males produce their cicada sound in unison, which can reach deafening proportions at the height of their population around February. Groups of cicada can suddenly transition from the typical cicada sound to synchronised clicks, using their wings to clap against the surface they are sitting on.
Chorus cicada have a nymph stage before their last molt and become an adult. During this nymph stage they are a soft and creamy white, [1] and very similar looking to the adult form (but without wings). Adults are usually larger than 2 cm in length [2] while the largest species are up to 4 cm; this includes the wings. [3] Chorus cicadas’ wings only appear after molting to become adults, they are membranous with veins and they filter out ultraviolet light and the wing span is about 6 cm.
The colour of the chorus cicada can be black/green/brown and many have stripes along their body. The antenna of the chorus cicada has seven segments with the seventh being constricted medially, [4] which means the last segment is tightened towards the middle. The adult male cicadas differ from the females by the presence of a clasper sheath, and females do not have the finger-like extensions that the males have.
The song made by cicadas is the loudest noise made by any insect. Male chorus cicadas produce a communication song that is specific to their species, and so species can be identified by their song. A pulse group of their song is made up of five clicks where the central click (third click) is stronger than the two on either side of it. The central click can become two clicks if the cicada is tired and has no energy. [5] These clicks are made by the cicada hitting its wings against the surface it is sitting on. These pulse groups can be produced quickly and continuously in a prolonged note during chorus singing. Chorus cicadas are New Zealand's largest cicadas, with size averaging 40 mm. [6]
The adults and immatures of the chorus cicada both feed on xylem sap made from plants. This sap is low in nutrients and doesn't contain all the necessary amino acids, so to make up for this the insects rely on an endosymbiotic bacteria to provide the lacking nutrients from the sap. [7] This type of food makes the chorus cicada a generalist feeder as it has a range of host plants that it feeds on. An orchard root system provides a good food source for the nymphs which live in the soil.
Chorus cicadas are endemic insects to New Zealand. The most closely related species are found in Australia, New Caledonia and Norfolk Island. However, some studies about the New Zealand fauna show that the fauna of New Zealand was from several invasions across the Tasman Sea from Australia or New Caledonia. [8]
Chorus cicadas are often found in towns and cities. They are distributed throughout the whole country, [9] common in the North Island, some coastal areas of the South Island, central Otago and parts of Canterbury.
Chorus cicadas are commonly found in open forests and woodlands but also sometimes found on buildings, fences or lamp posts. Cicadas prefer sub-tropical, sub-humid and temperate environments. [10]
The Māori name for cicadas is kihikihi wawa, matua kihikihi or ngengeti. [11] One Māori haka and folk song, Te Tarakihi (the cicada) is based on the shrill summer-singing of the cicada. [12]
Mating is triggered by the song of the males which facilitates the gathering of many males and females. Males compete with each other to produce the loudest and best musical sound, and sing louder when the weather is warmer. Sometimes two cicadas will fight each other. Chorus cicadas usually mate on a tree trunk silently. Adult cicada have a short life span of only two to three weeks, because after mating the adult cicada die off. [7] Female chorus cicadas lay their eggs into thin branches of a wide range of plants. [13] Females lay from 5 to 700 eggs, each about the size of a grain of rice. They lay eggs in a herring-bone pattern in the thin tree branches. [10]
The eggs take 3 to 10 months to develop and hatch. Hatching occurs from May to mid-December. [14] After hatching the larvae burrow into the ground where they grow and develop their organs and increase in size. This process and the transformation into nymphs occurs during the springs and winter months. During this period the nymphs feed on the juices of roots and other underground organisms. The nymph stage of the cicada can last from 25 to 44 months.
Once the nymphs have grown to their maximum size they emerge from the ground and climb up tree trunks to molt. This is the transformation that turns the nymphs to adult cicada. This occurs on summer nights during the period of mid-December to late February. Once out of their last nymph skin their wings expand and they wait for them to harden before they can fly off.
Their median total life cycle length is around four years, this being from egg to a natural adult death. [15]
The chorus cicada has a number of predators but few known parasites. In the adult stage, cicada are killed by wasps (such as the Vespula vulgaris), [16] birds, spiders and fungal diseases. In the nymph stage, beetles and fungal diseases can kill cicada. Parasitic wasps lay eggs into the cicada's eggs.
Isaria sinclairii is a species of entomopathogenic fungus which can infect the underground nymphs of chorus cicadas. [17]
The cicadas are a superfamily, the Cicadoidea, of insects in the order Hemiptera. They are in the suborder Auchenorrhyncha, along with smaller jumping bugs such as leafhoppers and froghoppers. The superfamily is divided into two families, the Tettigarctidae, with two species in Australia, and the Cicadidae, with more than 3,000 species described from around the world; many species remain undescribed. Nearly all of cicada species are annual cicadas with the exception of the few North American periodical cicada species, genus Magicicada, which in a given region emerge en masse every 13 or 17 years.
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 1 mm (0.04 in) to around 15 cm (6 in), and share a common arrangement of piercing-sucking mouthparts. The name "true bugs" is often limited to the suborder Heteroptera.
The term periodical cicada is commonly used to refer to any of the seven species of the genus Magicicada of eastern North America, the 13- and 17-year cicadas. They are called periodical because nearly all individuals in a local population are developmentally synchronized and emerge in the same year. Although they are sometimes called "locusts", this is a misnomer, as cicadas belong to the taxonomic order Hemiptera, suborder Auchenorrhyncha, while locusts are grasshoppers belonging to the order Orthoptera. Magicicada belongs to the cicada tribe Lamotialnini, a group of genera with representatives in Australia, Africa, and Asia, as well as the Americas.
Cicadidae, the true cicadas, is one of two families of cicadas, containing almost all living cicada species with more than 3,200 species worldwide.
Cicadas of the genus Neotibicen are large-bodied insects of the family Cicadidae that appear in summer or early fall in eastern North America and formerly Bermuda. Common names include cicada, harvestfly, jar fly, and the misnomer locust.
Leafhopper is the common name for any species from the family Cicadellidae. These minute insects, colloquially known as hoppers, are plant feeders that suck plant sap from grass, shrubs, or trees. Their hind legs are modified for jumping, and are covered with hairs that facilitate the spreading of a secretion over their bodies that acts as a water repellent and carrier of pheromones. They undergo a partial metamorphosis, and have various host associations, varying from very generalized to very specific. Some species have a cosmopolitan distribution, or occur throughout the temperate and tropical regions. Some are pests or vectors of plant viruses and phytoplasmas. The family is distributed all over the world, and constitutes the second-largest hemipteran family, with at least 20,000 described species.
A planthopper is any insect in the infraorder Fulgoromorpha, in the suborder Auchenorrhyncha, a group exceeding 12,500 described species worldwide. The name comes from their remarkable resemblance to leaves and other plants of their environment and that they often "hop" for quick transportation in a similar way to that of grasshoppers. However, planthoppers generally walk very slowly. Distributed worldwide, all members of this group are plant-feeders, though few are considered pests. Fulgoromorphs are most reliably distinguished from the other Auchenorrhyncha by two features; the bifurcate (Y-shaped) anal vein in the forewing, and the thickened, three-segmented antennae, with a generally round or egg-shaped second segment (pedicel) that bears a fine filamentous arista.
Kikihia is a genus of cicada in the family Cicadidae. Most species contained in the genus are endemic to New Zealand, with a single Australian species found on Norfolk Island. The genus was established in 1972 by John S. Dugdale with eleven species formerly classed within the genus Cicadetta.
Magicicada cassini, known as the 17-year cicada, Cassin's periodical cicada or the dwarf periodical cicada, is a species of periodical cicada. It is endemic to North America. It has a 17-year life cycle but is otherwise indistinguishable from the 13-year periodical cicada Magicicada tredecassini. The two species are usually discussed together as "cassini periodical cicadas" or "cassini-type periodical cicadas." Unlike other periodical cicadas, cassini-type males may synchronize their courting behavior so that tens of thousands of males sing and fly in unison. The species was first reported to the Academy of Natural Sciences of Philadelphia by Margaretta Morris in 1846. In 1852, the species was formally described by J. C. Fisher and given the specific name cassini in honour of John Cassin, an American ornithologist, whose own report was included by Fisher in his publication.
Thopha saccata, the double drummer, is the largest Australian species of cicada and reputedly the loudest insect in the world. Documented by the Danish zoologist Johan Christian Fabricius in 1803, it was the first described and named cicada native to Australia. Its common name comes from the large dark red-brown sac-like pockets that the adult male has on each side of its abdomen—the "double drums"—that are used to amplify the sound it produces.
Massospora cicadina is a fungal pathogen that infects only 13 and 17 year periodical cicadas. Infection results in a "plug" of spores that replaces the end of the cicada's abdomen while it is still alive, leading to infertility, disease transmission, and eventual death of the cicada.
The buffalo treehopper is a species of treehopper belonging to the subfamily Smiliinae. It is sometimes classified as Ceresa bisonia.
The tymbal is the corrugated exoskeletal structure used to produce sounds in insects. In male cicadas, the tymbals are membranes in the abdomen, responsible for the characteristic sound produced by the insect. In tiger moths, the tymbals are modified regions of the thorax and produce high-frequency clicks. In lesser wax moths the left and right tymbals emit high-frequency pulses that are used as mating calls.
Aleeta is a genus of cicadas with the only species Aleeta curvicosta, one of Australia's most familiar insects. Native to the continent's eastern coastline, it was described in 1834 by Ernst Friedrich Germar.
Enchenopa binotata is a complex of multiple species found mostly in Eastern North America, but have also been reported in Central America. They are commonly referred to as treehoppers and are sap-feeding insects. The species in the complex look similar to each other in morphology, but are identified as different species by the host plant they occupy.
Kikihia ochrina is a species of insect endemic to New Zealand. This species has a three-year life cycle and adults are bright green in colour and are most commonly seen in the month of April in the North Island.
Megatibicen dealbatus, commonly called the plains cicada, is a species of annual cicada. Dealbatus is Latin for "whitewashed".
Chremistica ochracea is a species of cicada in the suborder Auchenorrhyncha, which includes cicadas, leafhoppers, planthoppers, treehoppers, froghoppers and spittlebugs. They are usually referred to as 'thin winged cicada' in Taiwan and 'peaceful cicada' in China due to their abundance in these areas. They can be identified by their green appearance with thin, greenish, transparent wings and are heavily distributed in China, Taiwan, Japan, India and Malaya. However, there are limited number of scientific papers that describe the characteristics and behaviour of this species in detail.
Rhodopsalta leptomera, also known as the sand dune redtail cicada, is a species of insect that is endemic to New Zealand. This species was first described in 1921 by J. G. Myers and named Melampsalta leptomera.