Overview

Comprehensive Description

[[ Brachymyrmex HNS ]] sp. alw-01.

Canindeyú (ALWC, INBP, LACM).

  • Wild, A. L. (2007): A catalogue of the ants of Paraguay (Hymenoptera: Formicidae). Zootaxa 1622, 1-55: 27-27, URL:http://www.antbase.org/ants/publications/21367/21367.pdf
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Genus Brachymyrmex Mayr HNS

The name B. depilis Emery HNS is provisionally attached to the single species of Brachymyrmex HNS that occurs in California. It is widespread but infrequently encountered, in part because of its small size and inconspicuous foraging behavior. This is a ground-nesting species, recorded in California from sea level to ~1900m. References: Creighton (1950a), Page (1982), Smith (1979), Wheeler and Wheeler (1986g), Yensen et al. (1980).

  • Ward, P. S. (2005): A synoptic review of the ants of California (Hymenoptera: Formicidae). Zootaxa 936, 1-68: 28-28, URL:http://antbase.org/ants/publications/21008/21008.pdf
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[[ Brachymyrmex HNS ]] sp. alw-02.

Boquerón (ALWC).

  • Wild, A. L. (2007): A catalogue of the ants of Paraguay (Hymenoptera: Formicidae). Zootaxa 1622, 1-55: 27-27, URL:http://www.antbase.org/ants/publications/21367/21367.pdf
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Specimens of this species from Florida were originally identified as B. brevicornis (Deyrup, 2002; Deyrup et al., 2000), but is currently thought to belong to a different, possibly undescribed species (Deyrup, pers. comm.). MacGown provides the following description.


Workers of this particular species or form, are shiny dark brown, with pale yellowish-brown appendages. They lack erect hairs on the promesonotum, the occipital region of the head, and the femora. The head has moderate pubescence (in full face view); the dorsum of the alitrunk has sparse pubescence, but the sides lack pubescence and are very shiny; and the gaster has somewhat sparse pubescence. The eyes have about 6 facets in greatest diameter.



This species differs from other brown Brachymyrmex species (Brachymyrmex heeri - possible in the U.S., Brachymyrmex obscurior, and Brachymyrmex patagonicus) known or likely to occur in the U.S. in that it lacks erect hairs on the head, promesonotum and femora. An undescribed brown species known only from two queens collected from Arkansas (Lloyd Davis, pers. comm.) is unusual in that the queens are tiny, about the size of typical workers. All other known species present in this region are yellowish in color.

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Physical Description

Diagnostic Description

Diagnosis among introduced and commonly intercepted species. Antenna 9-segmented. Antennal club indistinct. Antennal scape length less than 1.5x head length. Eyes medium-sized. Antennal sockets and posterior clypeal margin separated by a distance less than the minimum width of antennal scape. Dorsum of mesosoma lacking a metanotal impression. Metapleuron with a distinct gland orifice. Propodeum and petiolar node both lacking a pair of short teeth. Propodeum without posteriorly projecting protrusion. Waist 1-segmented, but can be obscured by gaster. Petiolar node appearing flattened. Gaster armed with acidopore. Head, pronotum, mesonotum and femora lacking erect hairs. Shiny dark brown with pale yellowish-brown appendages. 

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The name B. depilis Emery is provisionally attached to the single species of Brachymyrmex that occurs in California. It is widespread but infrequently encountered, in part because of its small size and inconspicuous foraging behavior. This is a ground-nesting species, recorded in California from sea level to ~1900m. References: Creighton (1950a), Page (1982), Smith (1979), Wheeler and Wheeler (1986g), Yensen et al. (1980).

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Boquerón (ALWC).

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Canindeyú (ALWC, INBP, LACM).

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:502Public Records:197
Specimens with Sequences:433Public Species:11
Specimens with Barcodes:414Public BINs:14
Species:29         
Species With Barcodes:26         
          
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Statistics of barcoding coverage: Brachymyrmex sp. 1

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex MAS005

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex sp. CIP01

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 7
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex MAS004

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 19
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex MAS003

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex MAS002

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex MAS001

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 13
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex JTL014

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 17
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex JTL007

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 13
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex cf. obscurior

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex cf. minutus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex sp1

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
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Statistics of barcoding coverage: Brachymyrmex AFRC-MPU-01

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
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Barcode data: Brachymyrmex MU01

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 55 barcode sequences available from BOLD and GenBank.  Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNGGAATAATTGGATCATCAATAAGAATAATTATTCGTCTAGAACTAGGGTCTTGCAATGCTCTAATTAATAATGATCAAATTTATAATTCAATAGTTACAAGCCATGCATTCATCATAATTTTTTTTATAGTTATGCCTTTTATAATTGGAGGATTTGGAAATTTTTTAGTCCCTCTAATATTAGGATCCCCAGATATAGCCTTCCCTCGAATAAATAATATAAGATTCTGACTTCTACCTCCATCAATTTCCTTATTACTTTTAAGTAATTTTATTAACGACGGAGTTGGAACAGGATGAACTGTATATCCCCCACTAGCTTCAAATATTTTTCACAATGGACCTTCAGTAGATTTAACTATTTTTTCATTACACATTGCTGGGATATCTTCAATTTTAGGGGCTATTAATTTTATTTCTACAATTCTTAATATACACCATAAAAATTTTTCTATTGATAAAATCCCTCTTCTAGTTTGATCTATTTTTATTACTGCAATTTTATTACTATTATCTCTCCCAGTTCTTGCTGGAGCTATTACTATACTTTTAACTGACCGAAATCTTAATACATCATTCTTTGACCCCTCTGGAGGAGGAGACCCTATTTTATATCAACATTTATTT
-- end --

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Statistics of barcoding coverage: Brachymyrmex MU01

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 44
Specimens with Barcodes: 57
Species With Barcodes: 1
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Barcode data

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Brachymyrmex

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Wikipedia

Brachymyrmex

Brachymyrmex is a genus in the ants subfamily Formicinae.[1] The genus can be recognized by the combination of having nine antennal segments (fewer than most ants) and the petiole concealed by the gaster in dorsal view. They are sometimes called "rover ants".[2]

Distribution[edit]

The genus has a mainly Neotropical distribution, ranging from the United States to Argentina and Chile, including the Caribbean islands, but some species have been introduced to Japan, and Madagascar.[3]

Description[edit]

Brachymyrmex is a genus of minute ants that at first glance exhibit little morphological variation. Currently only the 9-segmented antennae and lack of antennal club have been proposed to diagnose workers of the genus. The combination of small size, soft metasoma, and the simple morphology makes observations and interpretation of morphological characters difficult. These difficulties impede taxonomic revisions and even led Creighton (1950) to call Brachymyrmex a "miserable little genus".[3] Nevertheless, 44 species and 17 subspecies are currently assigned to Brachymyrmex.[4]

Taxonomy[edit]

The first complete taxonomic revision of Brachymyrmex was published by Santschi (1923) and included 27 species and 15 subspecies and varieties. In this revision, Santschi (1923) recognized two subgenera: 1) Brachymyrmex sensu stricto (including most of the species) and 2) Bryscha (four species).[3]

Brachymyrmex sensu stricto contains species that have hairy legs, antennae without erect hairs and the second segment of the antennal funiculus much shorter that the first (= third antennal segment much shorter than the second). Bryscha species have legs and antennae with erect hairs and the second segment of the antennal funiculus is as long as or longer than the first. Unlike other species in the genus, two of the species of the subgenus Bryscha, Brachymyrmex pilipes and Brachymyrmex micromegas, have dimorphic workers. Ambiguity remains regarding the status of Bryscha. Brown (1973) provisionally synonymized it under Brachymyrmex and Bolton (1995, 2014) accepted this synonymy in his catalogues without substantiating the decision.[3]

See also[edit]

References[edit]

  1. ^ "Genus: Brachymyrmex". antweb.org. AntWeb. Retrieved 14 October 2013. 
  2. ^ Brachymyrmex patagonicus on the UF / IFAS Featured Creatures Web site
  3. ^ a b c d Ortiz, C.; Fernandez, F. (2014). "Brachymyrmex species with tumuliform metathoracic spiracles: Description of three new species and discussion of dimorphism in the genus (Hymenoptera, Formicidae)". ZooKeys 371 (371): 13–33. doi:10.3897/zookeys.371.6568. PMC 3909797. PMID 24493952.  edit
  4. ^ Bolton, B. (2014). "Brachymyrmex". An online catalog of the ants of the world. Retrieved 2 July 2014. 
  • Bolton B (1995) "A new general catalogue of the ants of the world.", Harvard University Press, Cambridge, Mass, 504 pp.
  • Brown WL Jr (1973) "A comparison of the Hylean and Congo-West African rain forest ant faunas." In: Meggers BJ, Ayensu ES, Duckworth WD (Eds) Tropical forest ecosystems in Africa and South America: a comparative review, 161–185.
  • Creighton WS (1950) "The ants of North America." Bulletin of the Museum of Comparative Zoology at Harvard College, 104: 1-585.
  • Santschi F (1923) "Revue des fourmis du genre Brachymymex Mayr." Anales del Museo Nacional de Historia Natural de Buenos Aires, 31: 650-678.
  • This article incorporates text from a scholarly publication published under a copyright license that allows anyone to reuse, revise, remix and redistribute the materials in any form for any purpose: Ortiz, C.; Fernandez, F. (2014). "Brachymyrmex species with tumuliform metathoracic spiracles: Description of three new species and discussion of dimorphism in the genus (Hymenoptera, Formicidae)". ZooKeys 371 (371): 13–33. doi:10.3897/zookeys.371.6568. PMC 3909797. PMID 24493952.  edit Please check the source for the exact licensing terms.
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List of Brachymyrmex species

This is a list of ants in the genus Brachymyrmex. As of 2014, Brachymyrmex contains 44 species and 17 subspecies.[1]

Species[edit]

References[edit]

  1. ^ Bolton, B. (2014). "Brachymyrmex". An online catalog of the ants of the world. Retrieved 28 June 2014. 
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