Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

OAI: https://revistas.ucr.ac.cr/index.php/rbt/oai
Morfometría geométrica alar para la identificación de Chrysomya albiceps y C. megacephala (Diptera: Calliphoridae) de Venezuela
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Keywords

puntos anatómicos de referencia
procrustes
entomología forense
chrysomyinae
landmarks
procrustes
forensic entomology
chrysomyinae

How to Cite

Vásquez, M., & Liria, J. (2012). Morfometría geométrica alar para la identificación de Chrysomya albiceps y C. megacephala (Diptera: Calliphoridae) de Venezuela. Revista De Biología Tropical, 60(3). https://doi.org/10.15517/rbt.v60i3.1776

Abstract

Geometric wing morphometrics for Chrysomya albiceps and C. megacephala identification (Diptera: Calliphoridae) from Venezuela. Calliphoridae is one of the families with the greatest number of species with forensic importance, which immature stages feed and develop on decaying material. In Venezuela, there are few studies on this taxon reporting the dominance of Chrysomya over other carrion flies. The goal of this study was to analyze the variations on wing morphometrics, to support the identification of two forensic flies. For this we photographed a total of 168 wings from C. albiceps (n=111) and C. megacephala (n=57). Landmark coordinate (x, y) configurations were registered and aligned by Generalized Procrustes Analysis. Principal Component Analysis and shape significance test based on Procrustes distance were implemented. Statistical analysis of variance found significant differences in wing isometric size (Kruskal-Wallis). The PCA showed the separation between species, and shape test showed significant differences (F Goodall´s). The main differences between both species were localized on subcosta rupture, join of R2+3 with wing border, join of dm-cu, and join of Cu with bm-cu, suggesting that wing morphometrics is a suitable tool in the discrimination of blowfly species.
https://doi.org/10.15517/rbt.v60i3.1776
PDF (Español (España))

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