
ABSTRACT Insect movements rely on membranous elastic types of cuticles that bridge hard and tanned types, which serve as an exoskeleton. A prominent, polymerous protein of membranous cuticles is Resilin, known for its flexibility and visco‐elasticity. In the articulated legs, including the coxa, the trochanter, the femur, the tibia and the tarsi, Resilin incidences in or at the joints of these podomers have been identified in various species such as the fruit fly Drosophila melanogaster and the desert locust Schistocerca gregaria relying on Resilin autofluorescence. A systematic, comparative and standardized work on Resilin identification in insect legs is yet missing. Here, we identified Resilin incidences in the legs of 29 model and non‐model species belonging to the major insect orders by harmonizing fluorescence signal intensities using the microscopic intensity subtraction method. We both confirm the presence of known Resilin locations and identify new incidences in the podomers, such as a coxa–trochanter signal. Together, we find that Resilin distribution in insect legs is highly diverse with no incidence common to all species tested. This underlines that the use of Resilin follows a rapid and optimizing evolutionary adaptation. Our data pave the path for studies of the comparative function of Resilin in insect legs.
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