A remarkable Dominican amber species of Cylindromyrmex with Brazilian affinities and additions to the generic revision (Hymenoptera: Formicidae).

Andrade, M. L. de

doi:10.21248/contrib.entomol.51.1.51-63

Cited by 4 publications

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“…34 Ma). Three Dominican amber species are from the genus Cylindromyrmex, whose extant representatives are typically arboreal [24,25]. The other two species are from extant subterranean or partially subterranean genera, Acanthostichus and Neivamyrmex [7,26].…”

Section: Discussionmentioning

confidence: 99%

RETRACTED: An Eocene army ant

2022

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Among social insects, army ants are exceptional in their voracious coordinated predation, nomadic life history and highly specialized wingless queens: the synthesis of these remarkable traits is referred to as the army ant syndrome. Despite molecular evidence that the army ant syndrome evolved twice during the mid-Cenozoic, once in the Neotropics and once in the Afrotropics, fossil army ants are markedly scarce, comprising a single known species from the Caribbean 16 Ma. Here we report the oldest army ant fossil and the first from the Eastern Hemisphere (EH), Dissimulodorylus perseus , preserved in Baltic amber dated to the Eocene. Using a combined morphological and molecular ultra conserved elements dataset spanning doryline lineages, we find that D. perseus is nested among extant EH army ants with affinities to Dorylus. Army ants are characterized by limited extant diversification throughout most of the Cenozoic; the discovery of D. perseus suggests an unexpected diversity of now-extinct army ant lineages in the Cenozoic, some of which were present in Continental Europe.

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Section: Discussionmentioning

confidence: 99%

RETRACTED: An Eocene army ant

2022

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How the Choice of Habitat and Sampling Technique Affects Biodiversity Knowledge: The Case of Cylindromyrmex (Hymenoptera, Formicidae) in the Atlantic Forest

Souza,

Vicente,

Bartholomay

2024

Sociobiology

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The Atlantic Forest is a biodiversity hotspot, and myrmecologists broadly study its numerous habitats. Even so, much of its biodiversity remains to be discovered, and the choice of collection methods and habitats to be explored directly affect the results obtained, especially in the case of species with cryptic habits, such as Cylindromyrmex ants. The ant subfamily Dorylinae has 11 genera registered in the Neotropics, with Cylindromyrmex Mayr, 1870 being a lineage to the region. The present study reports new records of three Cylindromyrmex species in 13 municipalities located in the Atlantic Forest in southeastern Brazil. It also describes the effect of sampling techniques and habitats on species records. The 78 examined herein specimens belong to the species C. brasiliensis Emery, 1901, C. brevitarsus Santschi, 1925, and C. longiceps André, 1892, and were collected manually or with Malaise traps. Records are distributed along the Espírito Santo state, with a tendency towards higher records in municipalities with mountainous habitats. All records in this region of the Atlantic Forest are associated with the hottest months and with the highest rainfall, suggesting a possible preference for nuptial flights in the summer. Most records of the three Cylindromyrmex species occurred in forested areas (93%), whereas few records belong to urban areas (7%). Although manual collections and Malaise traps are not widely used in research or surveys of ant diversity, these techniques could potentially reveal essential findings for ant ecology.

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Generic revision of the ant subfamily Dorylinae (Hymenoptera, Formicidae)

Borowiec

2016

105

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The generic classification of the ant subfamily Dorylinae is revised, with the aim of facilitating identification of easily-diagnosable monophyletic genera. The new classification is based on recent molecular phylogenetic evidence and a critical reappraisal of doryline morphology. New keys and diagnoses based on workers and males are provided, along with reviews of natural history and phylogenetic relationships, distribution maps, and a list of valid species for each lineage. Twenty-eight genera (27 extant and 1 extinct) are recognized within the subfamily, an increase from 20 in the previous classification scheme. Species classified in the polyphyletic Cerapachys and Sphinctomyrmex prior to this publication are here distributed among 9 and 3 different genera, respectively. Amyrmex and Asphinctanilloides are synonymized under Leptanilloides and the currently recognized subgenera are synonymized for Dorylus. No tribal classification is proposed for the subfamily, but several apparently monophyletic genus-groups are discussed. Valid generic names recognized here include: Acanthostichus (= Ctenopyga), Aenictogiton, Aenictus (= Paraenictus, Typhlatta), Cerapachys (= Ceratopachys), Cheliomyrmex, Chrysapace gen. rev., Cylindromyrmex (= Holcoponera, Hypocylindromyrmex, Metacylindromyrmex), Dorylus (= Alaopone syn. n., Anomma syn. n., Cosmaecetes, Dichthadia syn. n., Rhogmus syn. n., Shuckardia, Sphecomyrmex, Sphegomyrmex, Typhlopone syn. n.), Eburopone gen. n., Eciton (= Camptognatha, Holopone, Mayromyrmex), Eusphinctus gen. rev., Labidus (= Nycteresia, Pseudodichthadia), Leptanilloides (= Amyrmex syn. n., Asphinctanilloides syn. n.), Lioponera gen. rev. (= Neophyracaces syn. n., Phyracaces syn. n.), Lividopone, Neivamyrmex (= Acamatus, Woitkowskia), Neocerapachys gen. n., Nomamyrmex, Ooceraea gen. rev. (= Cysias syn. n.), Parasyscia gen. rev., †Procerapachys, Simopone, Sphinctomyrmex, Syscia gen. rev., Tanipone, Vicinopone, Yunodorylus gen. rev., Zasphinctus gen. rev. (= Aethiopopone syn. n., Nothosphinctus syn. n.).

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A remarkable Dominican amber species of Cylindromyrmex with Brazilian affinities and additions to the generic revision (Hymenoptera: Formicidae).

Cited by 4 publications

References 0 publications

RETRACTED: An Eocene army ant

RETRACTED: An Eocene army ant

How the Choice of Habitat and Sampling Technique Affects Biodiversity Knowledge: The Case of Cylindromyrmex (Hymenoptera, Formicidae) in the Atlantic Forest

Generic revision of the ant subfamily Dorylinae (Hymenoptera, Formicidae)

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