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Lenomyrmex
''Lenomyrmex'' is a Neotropical genus of ant in the subfamily Myrmicinae. Species * '' Lenomyrmex colwelli'' Longino, 2006 * '' Lenomyrmex costatus'' Fernández & Palacio, 1999 * '' Lenomyrmex foveolatus'' Fernández & Palacio, 1999 * '' Lenomyrmex hoelldobleri'' * '' Lenomyrmex inusitatus'' (Fernández, 2001) * '' Lenomyrmex mandibularis'' Fernández & Palacio, 1999 * '' Lenomyrmex wardi'' Fernández & Palacio, 1999 Distribution ''Lenomyrmex'' includes six rarely collected species from Costa Rica to Ecuador. Species have been collected from elevations close to sea level to 1800 m but seem to be mainly restricted to mid-elevations, that is, 1100–1500 m. Description The genus is characterized by elongate mandibles bearing a series of minute peg-like denticles that arise behind the masticatory margin, by frontal lobes that are poorly expanded laterally, by large and deep antennal fossae, and by pedunculate petiole, with a poorly defined node. Among ''Lenomyrmex'' species, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenomyrmex Wardi
''Lenomyrmex'' is a Neotropical genus of ant in the subfamily Myrmicinae. Species * '' Lenomyrmex colwelli'' Longino, 2006 * '' Lenomyrmex costatus'' Fernández & Palacio, 1999 * '' Lenomyrmex foveolatus'' Fernández & Palacio, 1999 * '' Lenomyrmex hoelldobleri'' * '' Lenomyrmex inusitatus'' (Fernández, 2001) * '' Lenomyrmex mandibularis'' Fernández & Palacio, 1999 * '' Lenomyrmex wardi'' Fernández & Palacio, 1999 Distribution ''Lenomyrmex'' includes six rarely collected species from Costa Rica to Ecuador. Species have been collected from elevations close to sea level to 1800 m but seem to be mainly restricted to mid-elevations, that is, 1100–1500 m. Description The genus is characterized by elongate mandibles bearing a series of minute peg-like denticles that arise behind the masticatory margin, by frontal lobes that are poorly expanded laterally, by large and deep antennal fossae, and by pedunculate petiole, with a poorly defined node. Among ''Lenomyrmex'' spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenomyrmex Mandibularis
''Lenomyrmex'' is a Neotropical genus of ant in the subfamily Myrmicinae. Species * '' Lenomyrmex colwelli'' Longino, 2006 * '' Lenomyrmex costatus'' Fernández & Palacio, 1999 * ''Lenomyrmex foveolatus'' Fernández & Palacio, 1999 * '' Lenomyrmex hoelldobleri'' * '' Lenomyrmex inusitatus'' (Fernández, 2001) * '' Lenomyrmex mandibularis'' Fernández & Palacio, 1999 * ''Lenomyrmex wardi'' Fernández & Palacio, 1999 Distribution ''Lenomyrmex'' includes six rarely collected species from Costa Rica to Ecuador. Species have been collected from elevations close to sea level to 1800 m but seem to be mainly restricted to mid-elevations, that is, 1100–1500 m. Description The genus is characterized by elongate mandibles bearing a series of minute peg-like denticles that arise behind the masticatory margin, by frontal lobes that are poorly expanded laterally, by large and deep antennal fossae, and by pedunculate petiole, with a poorly defined node. Among ''Lenomyrmex'' speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenomyrmex Costatus
''Lenomyrmex'' is a Neotropical genus of ant in the subfamily Myrmicinae. Species * ''Lenomyrmex colwelli'' Longino, 2006 * '' Lenomyrmex costatus'' Fernández & Palacio, 1999 * ''Lenomyrmex foveolatus'' Fernández & Palacio, 1999 * '' Lenomyrmex hoelldobleri'' * '' Lenomyrmex inusitatus'' (Fernández, 2001) * ''Lenomyrmex mandibularis'' Fernández & Palacio, 1999 * ''Lenomyrmex wardi'' Fernández & Palacio, 1999 Distribution ''Lenomyrmex'' includes six rarely collected species from Costa Rica to Ecuador. Species have been collected from elevations close to sea level to 1800 m but seem to be mainly restricted to mid-elevations, that is, 1100–1500 m. Description The genus is characterized by elongate mandibles bearing a series of minute peg-like denticles that arise behind the masticatory margin, by frontal lobes that are poorly expanded laterally, by large and deep antennal fossae, and by pedunculate petiole, with a poorly defined node. Among ''Lenomyrmex'' species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenomyrmex Inusitatus
''Lenomyrmex inusitatus'' is a Neotropical species of ant in the subfamily Myrmicinae. The worker of ''Lenomyrmex inusitatus'' is distinguished from other ''Lenomyrmex'' workers by smooth and shiny mesosoma with well-developed propodeal spines and by the foveolate-striate sculpture covering all the dorsal surface of its head. ''L. inusitatus'' has an unusual distribution since it is the single ''Lenomyrmex'' species recorded east of the Andes The Andes, Andes Mountains or Andean Mountains (; ) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long, wide (widest between 18°S – 20°S .... References * Myrmicinae Insects described in 2001 Hymenoptera of South America {{myrmicinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenomyrmex Hoelldobleri
''Lenomyrmex hoelldobleri'' is a species of ant known only from a single specimen found in the stomach of a "devil frog" ('' Oophaga sylvatica'') in Ecuador. Dunn's earth snake (''Geophis dunni'') is another creature which has only been found in the stomach of another animal, in this case the coral snake (''Micrurus nigrocinctus ''Micrurus nigrocinctus'', commonly known as the Central American coral snake, is a species of a highly venomous snake in the family Elapidae. The species is endemic to Latin America from southern Mexico, Central America, to north Colombia. Th ...'') in 1932, and several other as-yet-undescribed insects were found alongside ''Lenomyrmex hoelldobleri'' in the "devil frog"'s stomach. References Myrmicinae Insects described in 2016 Hymenoptera of South America Endemic fauna of Ecuador {{Myrmicinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myrmicinae
Myrmicinae is a subfamily of ants, with about 140 extant genera; their distribution is cosmopolitan. The pupae lack cocoons. Some species retain a functional sting. The petioles of Myrmicinae consist of two nodes. The nests are permanent and in soil, rotting wood, under stones, or in trees.Goulet, H & Huber, JT (eds.) (1993) Hymenoptera of the world: an identification guide to families. Agriculture Canada. p. 224 Identification Myrmicine worker ants have a distinct postpetiole, i.e., abdominal segment III is notably smaller than segment IV and set off from it by a well-developed constriction; the pronotum is inflexibly fused to the rest of the mesosoma, such that the promesonotal suture is weakly impressed or absent, and a functional sting is usually present. The clypeus is well-developed; as a result, the antennal sockets are well separated from the anterior margin of the head. Most myrmicine genera possess well-developed eyes and frontal lobes that partly conceal the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dacetini
Fungus-growing ants (tribe Attini) comprise all the known fungus-growing ant species participating in ant–fungus mutualism. They are known for cutting grasses and leaves, carrying them to their colonies' nests, and using them to grow fungus on which they later feed. Their farming habits typically have large effects on their surrounding ecosystem. Many species farm large areas surrounding their colonies and leave walking trails that compress the soil, which can no longer grow plants. Attine colonies commonly have millions of individuals, though some species only house a few hundred. They are the sister group to the subtribe Dacetina. Leafcutter ants, including ''Atta'' and ''Acromyrmex'', make up two of the genera. Their cultivars mostly come from the fungal tribe Leucocoprineae of family Agaricaceae. Attine gut microbiota is often not diverse due to their primarily monotonous diets, leaving them at a higher risk than other beings for certain illnesses. They are especially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalotini
Fungus-growing ants (tribe Attini) comprise all the known fungus-growing ant species participating in ant–fungus mutualism. They are known for cutting grasses and leaves, carrying them to their colonies' nests, and using them to grow fungus on which they later feed. Their farming habits typically have large effects on their surrounding ecosystem. Many species farm large areas surrounding their colonies and leave walking trails that compress the soil, which can no longer grow plants. Attine colonies commonly have millions of individuals, though some species only house a few hundred. They are the sister group to the subtribe Dacetina. Leafcutter ants, including ''Atta'' and '' Acromyrmex'', make up two of the genera. Their cultivars mostly come from the fungal tribe Leucocoprineae of family Agaricaceae. Attine gut microbiota is often not diverse due to their primarily monotonous diets, leaving them at a higher risk than other beings for certain illnesses. They are especially a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetics
In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by Computational phylogenetics, phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, protein amino acid sequences, or morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms. The tips of a phylogenetic tree can be living taxa or fossils, and represent the "end" or the present time in an evolutionary lineage. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the tree. An unrooted tree diagram (a network) makes no assumption about the ancestral line, and doe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between org ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
