Tegmen
![Lithoblatta lithophila, a Jurassic fossil, some 200 million years more recent than the emergence of cockroaches in the Carboniferous. Even the earliest cockroaches had tegmina that fossilised well.](/Images/godic/202502/15/Lithoblatta_lithophila0608.jpg")
![Earwig wing anatomy. One tegmen opened, the other removed to show wing folding mechanism.](/Images/godic/202502/15/Earwig_wing_cutted0608.png")
![Note the camouflage-adapted anatomy of the tegmina of the middle specimen](/Images/godic/202502/15/DruryV1P050AA0608.jpg")
![Stagmatoptera supplicaria, drawing showing eye-marks on tegmina.](/Images/godic/202502/15/Stagmatoptera_supplicaria_MHNT_femelle_vol0608.jpg")
A tegmen (plural: tegmina) designates the modified leathery front wing on an insect particularly in the orders Dermaptera (earwigs), Orthoptera (grasshoppers, crickets and similar families), Mantodea (praying mantis), Phasmatodea (stick and leaf insects) and Blattodea (cockroaches).