MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
Orobothriurus (Scorpiones: Bothriuridae) phylogeny, Andean biogeography, and homoplasy in somatic vs. genitalic characters
CAMILO IVAN MATTONI; JOSE OCHOA; ANDRES ALEJANDRO OJANGUREN AFFILASTRO; LORENZO PRENDINI
WILEY-BLACKWELL PUBLISHING, INC
Año: 2012 vol. 41 p. 160 - 160
The genus Orobothriurus Maury, 1976 (Bothriuridae Simon, 1880) displays an Andean pattern of distribution, most of its species occurring at high altitudes (over 20002500 m to a maximum altitude record of 4910 m) from central Peru to Argentina. The recent discovery of several new species and uncertain phylogenetic position of Orobothriurus lourencoi Ojanguren-Affilastro, 2003, required a reanalysis of Orobothriurus phylogeny. Thirty bothriurid taxa, including all species of Orobothriurus and Pachakutej Ochoa, 2004, were scored for 65 morphological characters, and analyzed with equal and implied weighting. The resulting topology justifies the creation of a new genus for O. lourencoi and an undescribed species, and offers new insights about the phylogeny and biogeography of Orobothriurus. Characters from the male genitalia (i.e. hemispermatophore), comprising approximately 26 % of the morphological matrix, were found to be less homoplastic than those from somatic morphology, contradicting suggestions that genitalia are potentially misleading in phylogenetic studies.