Augosoma centaurus, Fabricius, 1775

Dutrillaux, Anne-Marie, Mamuris, Zissis & Dutrillaux, Bernard, 2013, Chromosome analyses challenge the taxonomic position of Augosoma centaurus Fabricius, 1775 (Coleoptera: Scarabaeidae: Dynastinae) and the separation of Dynastini and Oryctini, Zoosystema 35 (4), pp. 537-549 : 543

Augosoma centaurus : 18,neoXY ( Fig. 3C )

Published data: none. Pairs nos 1 and 8 are submetacentric and all other autosomes are acrocentric. The X is large and sub-metacentric and the Y is acrocentric. Their meiotic behavior, i.e. compaction, synapsis and chiasma formation is typically that of neo-chromosomes formed by X-Y-autosome translocation (not shown). NOR location: small autosome.

Figures

FIG. 3. – C-banded karyotype of three representatives of Dynastini: A, Allomyrina dichotoma Linné, 1771; B, Chalcosoma atlas Linnaeus, 1758; C, Augosoma centaurus Fabricius, 1775. Notice that most chromosomes of A. centaurus are acrocentric (entirely heterochromatic [dark] short arms) as in O. rhinoceros Linnaeus,1758 (Fig.2) and O.nasicornis Linnaeus,1758 (Dutrillaux & Dutrillaux, 2012). Scale bars: 10 µm.