The biology, behaviour and venom of the ant Myrmecia nigrocincta are described. Symptoms of 15 cases of envenomation are described.
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Parallel And Divergent Morphological Adaptations Underlying The Evolution of Jumping Ability in Ants.
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Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan.
Jumping is a rapid locomotory mode widespread in terrestrial organisms. However, it is a rare specialization in ants. Forward jumping has been reported within four distantly related ant genera: , and .
View Article and Find Full Text PDFCauses of ant sting anaphylaxis in Australia: the Australian Ant Venom Allergy Study.
Med J Aust
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Western Australian Institute for Medical Research, University of Western Australia, Perth, WA, Australia.
Objective: To determine the Australian native ant species associated with ant sting anaphylaxis, geographical distribution of allergic reactions, and feasibility of diagnostic venom-specific IgE (sIgE) testing.
Design, Setting And Participants: Descriptive clinical, entomological and immunological study of Australians with a history of ant sting anaphylaxis, recruited in 2006-2007 through media exposure and referrals from allergy practices and emergency physicians nationwide. We interviewed participants, collected entomological specimens, prepared reference venom extracts, and conducted serum sIgE testing against ant venom panels relevant to the species found in each geographical region.
Phylogenetic relationships among species groups of the ant genus Myrmecia.
Mol Phylogenet Evol
March 2006
Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Kita-ku, Sapporo 060-8589, Japan.
Phylogenetic relationships among the nine species groups of the predominately Australian ant genus Myrmecia were inferred using 38 Myrmecia species and an outgroup using DNA sequences from two nuclear genes (622nt from 28S rRNA and 1907nt from the long-wave opsin gene). Nothomyrmecia macrops was selected as the most appropriate outgroup based on recent reliable studies showing monophyly of Myrmecia with Nothomyrmecia. The four species groups with an occipital carina (those of gulosa, nigrocincta, urens, and picta) were found to form a paraphyletic and basal assemblage out of which the five species groups lacking an occipital carina (those of aberrans, mandibularis, tepperi, cephalotes, and pilosula) arise as a strongly supported monophyletic assemblage.
View Article and Find Full Text PDFThe biology, behaviour and venom of the ant Myrmecia nigrocincta are described. Symptoms of 15 cases of envenomation are described.
View Article and Find Full Text PDFImmediate allergic reactions to Myrmecia ant stings: immunochemical analysis of Myrmecia venoms.
Clin Exp Allergy
June 1994
Kolling Institute of Medical Research, Royal North Shore Hospital of Sydney, St Leonards, NSW, Australia.
IgE antibody reactivities to the venoms of Myrmecia pilosula, Myrmecia nigrocincta, Myrmecia tarsata, Myrmecia pyriformis, Myrmecia simillima and Myrmecia gulosa have been identified in sera from subjects allergic to ant venom. Sera with IgE reactivity to only a single Myrmecia venom most often recognize M. pilosula venom although all six venoms appear capable of inducing IgE antibodies.
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