Results 131 to 140 of about 1,179 (168)

Novelties in Colombian hunter ants: new records and additional notes (Hymenoptera: Formicidae: Ectatomminae, Ponerinae)

Journal of Insect Biodiversity
Hunter ants are among top invertebrate predators in tropical forests and play a key role in regulating invertebrate populations. This study documents new records of Ectatomminae and Ponerinae ants in the Colombian Amazon Basin.
Esteban Sanabria-Baquero, F. Fernández, Daniel Castro   +2 more
semanticscholar   +1 more source

Division of labor inPonera pennsylvannica (Formicidae: Ponerinae)

Insectes Sociaux, 1994
We examined division of labor and colony demography in the antPonera pennsylvannica. Observation of three colonies with individually marked workers revealed a high degree of interindividual behavioral variation and a rough but consistent division of labor between brood tenders and foragers. This division was present both in colonies consisting entirely
S. C. Pratt, N. F. Carlin, P. Calabi
openaire   +1 more source

Expanding the fossil record of Siinikaponera (Formicidae, Ponerinae): a new species from Oligo–Miocene Mexican amber

Palaeoentomology
A new species of the fossil ant genus Siinikaponera Varela-Hernández, Riquelme & Guerrero, 2025, Siinikaponera balana sp. nov., is described based on a single alate gyne preserved in amber from Montecristo, Chiapas, Mexico.
F. Varela-Hernández, Roberto J. Guerrero   +1 more
semanticscholar   +1 more source

Abdominaldrüsen beiPachycondyla Tridentata (Smith): Formicidae, Ponerinae

Insectes Sociaux, 1983
Die grose PonerinePachycondyla tridentata verfugt uber 28 abdominale Hautdrusen, einschlieslich der Gift- und der Dufourdruse. Das ist das Maximum an Abdominaldrusen, das bisher bei Ameisen und auch bei anderen Hymenopteren gefunden wurde. Die Dufourdruse ist dagegen bis auf wenige Zellen im Aculeus atrophiert.
Karla Jessen, Ulrich Maschwitz
openaire   +1 more source

Comparative Survey of Abdominal Gland Secretions of the Ant Subfamily Ponerinae

Journal of Chemical Ecology, 2003
The chemical contents of three abdominal glands were investigated in representative species of the ponerine ants. The Dufour glands of 14 species show a wide variety of contents. In Mystrium camillae and Proceratium itoi, no volatile substances were found in either the Dufour or venom glands.
E David, Morgan, Harald, Jungnickel, Sarah J, Keegans, Ruth R, do Nascimento, Johan, Billen, Bruno, Gobin, Fuminori, Ito   +6 more
openaire   +2 more sources

A review of the Nearctic Odontomachus (Hymenoptera: Formicidae: Ponerinae) with a treatment of the males

Zootaxa, 2014
The ant genus Odontomachus Latreille in the United States is reviewed. Six species are treated: O. brunneus (Patton), O. clarus Roger, O. desertorum Wheeler stat. nov., O. relictus Deyrup and Cover, O. ruginodis M.R. Smith, and O. haematodus (Linnaeus), a new record for North America. The spread of O.
Macgown, Joe A., Boudinot, Brendon, Deyrup, Mark, Sorger, D. Magdalena   +3 more
openaire   +3 more sources

Proprioceptors and fast antennal reflexes in the ant Odontomachus (Formicidae, Ponerinae)

Cell and Tissue Research, 1997
In ants, antennal movements support the stimulus perception of olfactory and mechanosensory sensilla, most of which are located on the distal part of the antenna. In addition, sensory hair plates, campaniform sensilla, and Janet's organ provide the ant with proprioceptive information about the position, velocity, and acceleration of their antennae.
B, Ehmer, W, Gronenberg
openaire   +2 more sources

Comparative effect of the venoms of ants of the genus Pachycondyla (Hymenoptera: Ponerinae)

Toxicon, 2001
The venoms of 12 Pachycondyla ant species, all generalist predators, were compared for their paralytic and lethal effects during prey capture of the cricket, Acheta domesticus. The observed values covered a wide range that seems surprising when considering the close phylogenetic relatedness of the species.
J, Orivel, A, Dejean
openaire   +2 more sources

Ecology and behavior ofGnamptogenys horni (Formicidae: Ponerinae)

Insectes Sociaux, 1994
In order to examine social behavior in the little-studied ponerine ant genusGnamptogenys, detailed observations were made on captive colonies ofG. horni. Compilation of a behavioral repertory gave evidence of age-based division of labor, with old ants more likely to forage and young ants more likely to tend brood.
openaire   +1 more source

Are There Edge Effects on the Genetic Diversity of the Trap-Jaw Ant Odontomachus chelifer (Formicidae: Ponerinae) in a Neotropical Savanna Fragment? A First Assessment

Environmental Entomology, 2023
M. Azevedo-Silva, A. Lemos, Salatiel Gonçalves-Neto, L. Salles, M. Pereyra, A. Christianini, A. P. Souza, P. S. Oliveira   +7 more
semanticscholar   +1 more source