University of Isfahan Taxonomy and Biosystematics 3115-9001 13 47 2021 08 23 Comparing Wing Shape and Size in Andromorph and Gynomorph Females with Males of Calopteryx Intermedia Using Geometric Morphometrics مقایسۀ‌ قالب و اندازۀ بال در ماده‌‌های آندرومورف، جینومورف و جنس نر سنجاقک Calopteryx intermedia با استفاده از ریخت‌‌سنجی هندسی 15 28 25967 10.22108/tbj.2021.127392.1154 EN Fatemeh Dorsetan MSc, Department of Biology, Faculty of Science, Shiraz University, Shiraz, Iran Yaser Bakhshi Ph. D. Student, Department of Biology, Faculty of Science, Shiraz University, Shiraz, Iran Saber Sadeghi Associate Professor, Department of Biology, Faculty of Science, Shiraz University, Shiraz, Iran Journal Article 2021 02 18 Female polymorphism is visible in some populations of Odonata species for unknown reasons. Andromorph is one of the female forms which is more or less similar to males. Andromorph females show similar color patterns and even some structural and behavioral similarities to the conspecific males, whereas gynochrome females exhibit different features than males. One reason for the existence and survival of this phenomenon in the odonates is the avoidance of male harassment toward females during the breeding season. Males and females of <em>Calopteryx intermedia</em> have sexual dimorphism in the wing shape, which leads to differences in flight dynamic models of the two sexes. Therefore, the decrease of harassment of females by males needs mimicry of male’s flight dynamic, however, this could be possible with the same wing shape as males and  not for gynomorph females. The results of the present study revealed that the shape of fore and hindwing of andromorph females, as opposed to gynomorph females, were significantly different from males. As a result, it seems that andromorph females are not able to mimic the males’ flight and it seems that the andromorph females with a wing spot, approximately the same as that of conspecific males, cannot mislead the males. Thus, we have to seek other places for their existential reason(s) and survival. https://tbj.ui.ac.ir/article_25967_8cb35f7c46998d5880a695649b769f1b.pdf