Lorrenne C. Caburatan Mark Anthony J. Torres Cesar G. Demayo Department of Biological Sciences, College of Science and Mathematics, MSU-Iligan Institute of Technology, Iligan City, Philippines Center of Integrative Health, Premier Research Institute of Science and Mathematics, MSU-Iligan Institute of Technology, Iligan City, Philippines Proceedings of the International Academy of Ecology and Environmental Sciences ISSN 2220-8860 http://www.iaees.org/publications/journals/piaees/online-version.asp 2025 15 2 53 66 International Academy of Ecology and Environmental Sciences Hong Kong 12 November 2024 20 December 2024 1 June 2025 Aranea attitudes perspectives conservation Leptocorisa acuta, sometimes known as the rice bug, is an agronomic pest that is well-known for causing damage to rice fields. The techniques of landmark-based geometric morphometrics are utilized in this work to assess the variance in head shape that exists across three groups consisting of both males and girls. A total of 35 landmarks were subjected to analysis using techniques such as analysis of variance and relative warp analysis. The findings demonstrated that there is a substantial amount of diversity not only between the three populations of male (p=0.02323) and female (p=3.705E-09) L. acuta, but also between male (p=1.36E-06) and female (p=0.06616) forms of the species. A significant proportion of the male L. acuta (RW=30.50%) and the female L. acuta (RW=41.6%) are located at the tips of the labrum and vertex, respectively. A number of causes, including genetics, ecological niche and dynamics, and evolutionary adaptation, might have been responsible for the appearance of variation. The knowledge of head shape diversity may be significant for the production of efficient pest management control in the future. http://www.iaees.org/publications/journals/piaees/articles/2025-15(2)/morphometric-variations.pdf