Black cocktail ant | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Formicidae |
Subfamily: | Myrmicinae |
Genus: | Crematogaster |
Species: | C. peringueyi |
Binomial name | |
Crematogaster peringueyi Emery, 1895 | |
Crematogaster peringueyi is a southern African arboreal species of ant. They are commonly known as the black cocktail ant or swartwipgatmier (Afrikaans) for their colour and habit of arching their abdomens when alarmed.
They make their nests in old Protea flowers, [1] dead, hollow branches, and under tree bark, also making nests constructed of well-chewed vegetable matter with the consistency of papier-mâché. The outer walls of these nests are blackened by the salivary secretions, and are thin, with the interior divided into irregular, connected cells, like a coarse sponge. These more or less spherical nests, ranging in diameter from 10–30 cm, are built in a fork or among the branches, some of the branches passing through the nest. [2] Workers are glossy black and 3–5 mm long, and the larger queen is about 8 mm long, both having heart-shaped abdomens.
Pheromone alarms are common among the social Hymenoptera. Some of these have been chemically identified, but the number is still small compared with the large number of species making use of them. The ketone octan-3-one is seen as the major component of the pheromone complex secreted from the heads of C. peringueyi. [3]
The sting or venom gland of other ant species has evolved in C. peringueyi into a gland secreting a smelly and irritant fluid, which, together with the ant's painful bite, is a strong deterrent to predation or attack.
Butterflies belonging to the family Lycaenidae, like the Common Opal ( Chrysoritis thysbe ), Dickson's Copper ( Chrysoritis dicksoni ) and other members of this genus, have a mutualistic relationship with various species of Crematogaster. [4] [5] The Lycaenidae and Crematogaster spp. are strongly associated with the fynbos growing in the Natal Drakensberg, and on Table Mountain Sandstone in the western and southern Cape. C. peringueyi also occurs at Jagersfontein, De Aar, Willowmore, Clanwilliam, Garies, Springbok, and Laingsburg. [6]
Various honeydew-producing insects such as aphids, scale insects and mealybugs are diligently protected by the ants. Common Opal larvae also produce honeydew from a gland on the back, leading to their being constantly guarded from predators such as parasitic wasps. The larvae at first feed and rest among the young leaves of the foodplant, but with the 3rd instar move to the plant's base. Here the ants extend their protection and hospitality by constructing papery daytime shelters for the larvae which feed by night on plants such as Bietou, and species of Aspalathus , Osteospermum and Zygophyllum . The larvae use these same shelters for pupating, the pupae also producing honeydew to ensure ant protection. [7]
Crematogaster peringueyi – and other ants with a similar location and lifestyle, Linepithema humile and Formica perpilosa – are indirect pests of South African viticulture. [8] : 299 Addison & Samways 2000 and Mgocheki & Addison 2009 find that these ants interfere with the natural biological control of Planococcus ficus provided by various natural enemies. [8] : 299 The ants and the mealybug have a pre-existing mutualistic (honeydew) relationship and so provide them with a refuge. [8] : 299 In their next work Mgocheki & Addison 2010 find that managing the ants did indeed lead to increased parasitism on the mealybug and decreased crop injury. [8] : 299
The genus of Crematogaster, created by Peter Wilhelm Lund in 1831 (Lettre sur les habitudes de quelques fourmis du Brésil, adressée a M. Audouin. Annales des Sciences Naturelles 23: 113-138) is diverse, widespread and abundant, distributed over tropical, subtropical and warm-temperate regions throughout the world. Greek: 'kremastos' + 'gaster' = 'suspended stomach', which would make the literal generic spelling 'Cremastogaster', but Lund set it as 'Crematogaster', which is preserved by priority. [9]
The whistling thorn of East Africa is fiercely protected by at least three species of Crematogaster which occupy the swollen thorns and, in exchange for nectar from the tree, vigorously attack browsers.
Trail-laying amongst cocktail ants involves shuffling their hind legs without touching of the soil with their abdomens, as is common with other ant species. This results in a setting of footprints for other foragers to follow. The hind leg's tendon to the claw is swollen where it passes through the tibia into a spindle-shaped reservoir containing the pheromone, an oil-like, relatively nonvolatile substance. [10]
Dickson's copper or Dickson's strandveld copper is a species of butterfly in the family Lycaenidae. It is endemic to South Africa, where it is only known inland from Witsand in a single spot in fynbos. Previously, it was also found north of Cape Town. It is sometimes separated in the monotypic genus Oxychaeta.
Chrysoritis pyramus, the Pyramus opal, is a species of butterfly in the family Lycaenidae. It is endemic to South Africa, where it is found on the northern slopes of the Swartberg, the Kammanassie Mountains and the Langeberg in the Western Cape.
Chrysoritis rileyi, the Riley's opal, is a species of butterfly in the family Lycaenidae. It is endemic to South Africa, where it is known only from hill slopes and river flats at the east end of the Brandvlei Dam in the Western Cape.
Crematogaster is an ecologically diverse genus of ants found worldwide, which are characterised by a distinctive heart-shaped gaster (abdomen), which gives them one of their common names, the Saint Valentine ant. Members of this genus are also known as cocktail ants because of their habit of raising their abdomens when alarmed. Most species are arboreal (tree-dwelling). These ants are sometimes known as acrobat ants.
Trophobiosis is a symbiotic association between organisms where food is obtained or provided. The provider of food in the association is referred to as a trophobiont. The name is derived from the Ancient Greek τροφή (trophē), meaning "nourishment", and -βίωσις (-biosis), which is short for the English word symbiosis.
Vachellia drepanolobium, more commonly known as Acacia drepanolobium or whistling thorn, is a swollen-thorn acacia native to East Africa. The whistling thorn grows up to 6 meters tall. It produces a pair of straight spines at each node, some of which have large bulbous bases. These swollen spines are naturally hollow and occupied by any one of several symbiotic ant species. The common name of the plant is derived from the observation that when wind blows over bulbous spines in which ants have made entry and exit holes, they produce a whistling noise.
Acromyrmex is a genus of New World ants of the subfamily Myrmicinae. This genus is found in South America and parts of Central America and the Caribbean Islands, and contains 33 known species. Commonly known as "leafcutter ants" they comprise one of the two genera of advanced attines within the tribe Attini, along with Atta.
Chrysoritis zonarius, the donkey daisy copper or Coetzer's daisy copper, is a butterfly of the family Lycaenidae. It is found in South Africa, along the coast and inland from the Cape Peninsula, north-west to Paleisheuwel and Lambert's Bay and along the hills to the Western Cape.
Chrysoritis felthami, the Feltham's opal, is a butterfly of the family Lycaenidae. It is found in South Africa. It was originally described by Roland Trimen under the name Zeritis felthami. This species was named in honour of Henry Louis Langley Feltham.
Chrysoritis palmus, the water opal, is a butterfly of the family Lycaenidae. It is found in South Africa.
Chrysoritis thysbe, the opal copper or common opal, is a butterfly of the family Lycaenidae. It is found in South Africa.
Chrysoritis violescens, the violet opal, is a butterfly of the family Lycaenidae found only in South Africa.
Chrysoritis beaufortius, the Beaufort opal, is a butterfly of the family Lycaenidae found only in South Africa.
Chrysoritis brooksi, the Brook's opal, is a butterfly of the family Lycaenidae found only in South Africa.
Chrysoritis plutus, the Plutus opal, is a butterfly of the family Lycaenidae found only in South Africa.
Acropyga acutiventris is an ant in the subfamily Formicinae. It lives underground in tropical regions and forms a mutualistic association with the mealybug, Xenococcus annandalei.
Crematogaster scutellaris is a species of ant belonging to the family Formicidae, subfamily Myrmicinae.
Crematogaster carinata is a species of ant in the tribe Crematogastrini. It was first described by Gustav Mayr in 1862. It is native to Central and South America, where it is a common species, forming large colonies in the canopy of the forest.
Many species of Staphylinidae have developed complex interspecies relationships with ants, known as myrmecophily. Rove beetles are among the most rich and diverse families of myrmecophilous beetles, with a wide variety of relationships with ants. Ant associations range from near free-living species which prey only on ants, to obligate inquilines of ants, which exhibit extreme morphological and chemical adaptations to the harsh environments of ant nests. Some species are fully integrated into the host colony, and are cleaned and fed by ants. Many of these, including species in tribe Clavigerini, are myrmecophagous, placating their hosts with glandular secretions while eating the brood.
Manica rubida is a species of ant in the subfamily Myrmicinae.
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: CS1 maint: location missing publisher (link) ISBN 978-94-007-4031-0. ISBN 978-94-007-9436-8.