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Separation of Aspidiotes species using morphometdc analysis (Coleoptera: Curculionidae)

AuthorsSánchez Ruiz, Manuel ; Sanmartín, Isabel
Issue Date2000
PublisherInstitute of Entomology
CitationEuropean Journal of Entomology 97 : 85-94 (2000)
AbstractThe efficacy of morphometric charaeters for separating the species of the genus Aspidiotes Schoenherr, 1847, was evaluated. Thirty characters were analyzed. Multivariate and univariate analyses of variance, and discriminant function analysis, al! de monstrated that each species is morphometrical!y distingllishable. The lenglhs of rostrum, scape, onychium, pronotum, and width and length of elytra have the maximum discriminatory power. Males and females are also morphometrically distinguishable, mainly due to differences in the widths of rostrllm between pterigia and at base of pronotllm, and width and length of elylra. The classification functions provided by discriminant gave the correct identificalion of every single specimen by sex and species. Mahalanobis' distances between species were calclllated and subjected lo UPGMA clllstering, to constrllct a dendrogram reflecting the morphometric relationships between species. This dendrogram did not correspond to the phylogenetic relationships depicted by a cladogram based on discrete characters (Sánchez-RlIiz & Alonso-Zarazaga, 1994). Some hypotheses are reviewed, which might explain this discrepancy
Publisher version (URL)https://www.eje.cz/pdfs/eje/2000/01/16.pdf
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