Variabilidad fenotipica inter e intraespecífica en cuatro especies de lberodorcadion Breuning, 1943 (Coleoptera, Cerambycidae, Lamiinae) de la Sierra de Guadarrama (Madrid, España)

Abstract

lnter and intraespecific phenotypic variability in four species of lberodorcadion Breuning, 1943 (Coleoptera, Cerambycidae, Lamiinae) of Guadarrama Mountains (Madrid, Spain)
A numeric study of the phenotypic variability among and within populations in four species of lberodorcadion Breuning, 1943, is presented. Eight characters in 24 populations of the four species have been studied. Differences were found among populations and two groups were established, the first group is composed of lberodorcadion (Hispanodorcadion) hispanicurn, l. (H.) ghilianii and l. (H.) perezi; the second group is composed only of the populations of l. (H.) graellsi. In the first group, a degree of phenotypic variation in agreement with the geographical distribution in the Guadarrama Mountains can be observed. An explanation about speciation of these groups is given.