The Baltic amber ant genus Bradoponera (Hymenoptera: Formicidae), with description of two new species and a reassessment of the Proceratiini genera

Andrade, M. L. de; Urbani, C. Baroni

doi:10.5962/bhl.part.80219

Cited by 10 publications

(6 citation statements)

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“…All extant genera of the subfamilies Cerapachyiinae and Myrmeciinae, the tribe Proceratiini (Andrade de, Baroni Urbani, 2003)and the Leptomyrmex genus group are also distributed in the tropics. Th erefore, we also decided to compare the portion of tropical species sensu lato including Yantaromyrmex, Procerapachys (Cerapachyiinae), Prionomyrmex (Myrmeciinae), Bradoponera (Proceratiini) (Andrade, de, Baroni Urbani, 2003), Usomyrma (Leptomyrmex genus-group), and Fallomyrma, with the portion of Holarctic species sensu lato including Myrmica and the extinct Formicini.…”

Section: Methodsmentioning

confidence: 99%

Tropical and Holarctic Ants in Late Eocene Ambers

Perkovsky¹

2016

Vestnik Zoologii

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Based on representative collections, the ratio of tropical and Holarctic ant species in Priabonian (Late Eocene) Baltic, Bitterfeld (Saxonian), Danish and Rovno ambers is analyzed for the first time. In surveyed representative collections of Baltic amber, the ratios of Holarctic and tropical ant species are from 1.1 to 1.5; with 10 Holarctic and 9 tropical species (out of 31) in the PIN-964 collection, and 9 and 5 species (out of 29) in the Giecewicz collection; the ratio in the representative collection of Saxonian amber is 0.9, 11 Holarctic species vs. 12 tropical species (out of 55); in the representative collection of Rovno amber it is 0.65, 15 vs. 23 species (out of 79); and in the representative collection of Danish amber it is 0.64, 7 vs. 11 species (out of 36). Hence, in representative collections of Baltic amber, Holarctic species clearly prevail not just in terms of the share of their specimens (by 9.8 to 19.6 times), but also by the number of species. In Bitterfeld amber, Holarctic species are somewhat less numerous than tropical ones, but their specimens are 6 times greater. In representative collections of Rovno and Danish ambers, the number of Holarctic species is 1.5 to 1.7 times smaller than that of tropical species, but the number of their specimens is 4.9 to 6.9 times greater. The numbers of tropical and Holarctic species represented by more than one specimen is similar in Priabonian ambers, 25 versus 22, but Holarctic species include four dominants or subdominants. The abundance of temperate elements in the Priabonian amber ant fauna along with the relatively small number of tropical elements greatly distinguishes it from the Middle European Lutetian ant faunas of Messel and Eckfeld in shale, which do not have temperate elements at all. Formica phaethusa Wheeler, Glaphyromyrmex oligocenicus Wheeler, Plagiolepis squamifera Mayr, Proceratium eocenicum Dlussky, Hypoponera atavia (Mayr), Ponera lobulifera Dlussky, Aphaenogaster mersa Wheeler, and Ennaemerus reticulatus Mayr are new records for Rovno amber, and Formica gustawi Dlussky and Gnamptogenys europaea (Mayr) for Danish amber.

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Section: Methodsmentioning

confidence: 99%

Tropical and Holarctic Ants in Late Eocene Ambers

Perkovsky¹

2016

Vestnik Zoologii

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“…39) has led some authors to miscount the number of palpomeres. Species in this taxon are usually reported as having one joint less and the genus as having no more than five joints (e.g., Bolton, 2003;de Andrade and Baroni Urbani, 2003).…”

Section: About Character Figuresmentioning

confidence: 99%

A Phylogenetic Analysis of Ant Morphology (Hymenoptera: Formicidae) with Special Reference to the Poneromorph Subfamilies

Keller

2011

Bulletin of the American Museum of Natural History

114

168

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“…Most studies using SEM to explore morphological characters in ants have used traditional drying techniques such as CPD (de Andrade and Baroni Urbani, 1999;Fernández, 2004;Keller, 2011) or air drying (Lucas et al, 2002). This is the first study that attempts to assess the suitability of a chemical compound as a desiccant agent for ants prior to SEM imaging.…”

Section: Discussionmentioning

confidence: 99%

“…The Critical Point Drying (CPD) technique is widely used to prepare ants that will be observed in the SEM. This technique is widely used because most ants have a relatively thick integument and are therefore resistant to drying (de Andrade and Baroni Urbani, 1999;Fernández, 2004;Keller, 2011). Some ants, however, respond very well to air-drying (Lucas et al, 2002) without prior chemical treatment or CPD.…”

Section: Introductionmentioning

confidence: 99%

Un método rápido y efectivo para preparar hormigas para microscopía electrónica de barrido

Guerrero

2022

Intropica

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Independientemente de la aplicación de técnicas de microscopía electrónica de barrido (MEB), la preparación adecuada del material biológico a analizar es de suma importancia. En la mayoría de los estudios de hormigas que involucran SEM, las hormigas han sido desecadas por la técnica de punto crítico (CPD por sus siglas en inglés), pero la mayoría de las especies de Dolichoderinae tienen tegumentos delgados y, por lo tanto, tienden a colapsar fácilmente. Para evaluar las ventajas potenciales de un nuevo método sobre la técnica CPD, estas hormigas de tegumentos delgados se trataron con tetrametilsilano (TMS) y luego se secaron al aire. Los resultados obtenidos en este estudio se presentan en microfotografías de barrido. Aquí, detallo un protocolo estandarizado para la preparación de hormigas con TMS antes de SEM. La técnica TMS permite el análisis de casi cinco a seis veces más hormigas que CPD y es más rápido, más fácil, más eficiente y económico que el método CPD.

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The Baltic amber ant genus Bradoponera (Hymenoptera: Formicidae), with description of two new species and a reassessment of the Proceratiini genera

Cited by 10 publications

References 0 publications

Tropical and Holarctic Ants in Late Eocene Ambers

Tropical and Holarctic Ants in Late Eocene Ambers

A Phylogenetic Analysis of Ant Morphology (Hymenoptera: Formicidae) with Special Reference to the Poneromorph Subfamilies

Un método rápido y efectivo para preparar hormigas para microscopía electrónica de barrido

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