Based on a quantitative mathematical revolution, the study of morphology has had an important emphasis by developing statistical shape analysis. This made possible the combination of multivariate statistical methods and new ways to visualize a morphological structure. Patterns of allometry (shape influence on size) in sexual and non-sexual traits were examined in adults of Cicindelidia trifasciata Fabricius collected in north Chilean wetland, using geometric morphometric techniques. Abdomen, mandible and wing shapes were analyzed using 16, 12 and 19 morphological landmarks. Sexual and non-sexual traits differences were found after a principal component analysis, however, most of them were ascribable to sexual size dimorphism. A multivariate regression analysis of shape on size of the abdomen, mandible and wing shapes showed high levels of allometry in C. trifasciata. Static allometry in the sexual traits of C. trifasciata is a common pattern, being the size an important trait that plays an important role during the sexual selection in this species. These differences raise the question of whether sexual dimorphism of sexual traits may be modulated by natural selection.

在定量数学革命的基础上，通过发展统计形状分析，形态学研究得到了重要的重视。这使得多元统计方法和新方法可视化形态结构成为可能。研究了灰褐蝉蝉成虫的成年性和非性状的异速生长模式（形状对大小的影响）Fabricius使用几何形态计量学技术收集在智利北部湿地。使用16、12和19个形态学标志物分析腹部，下颌骨和翼形。在进行主成分分析后，发现了性和非性特征的差异，但是，大多数差异归因于性别大小的双态性。腹部，下颌骨和翼形大小的形状的多变量回归分析显示，黑线锦梭菌的异位性水平较高。C. trifasciata的性状中的静态异构是一种常见的模式，它的大小是重要的性状，在该物种的性选择中起着重要的作用。这些差异引发了一个问题，即性格特征的性二态性是否可以通过自然选择来调节。