Morphometry is the quantitative study of form, including the measurement and analysis of size and shape of biological organisms. It plays an important role in understanding morphological variation, species identification, and evolutionary relationships. In insects, morphometric analysis has been widely used to examine structural differences, ecological adaptations, and developmental patterns. Insect morphometry is particularly useful in distinguishing closely related species and studying phenotypic variations influenced by environmental and genetic factors.

Morphometric methods are broadly classified into traditional and geometric approaches. Traditional morphometry is based on linear measurements such as length, width, and ratios of different body parts, providing basic information about size-related traits. In contrast, geometric morphometry focuses on shape analysis using landmark-based techniques, preserving the spatial relationships among structures and allowing more precise comparisons.