Images showing WIP on several species of crane fly in nature A male Tipula (Yamatotipula) aprilina Alexander, 1918 displaying WIP in nature B female Tipula (Yamatotipula) aprilina displaying WIP in nature C pair of Gnophomyia tristissima perched on a leaf in copula. Both flies are displaying their sexually dimorphic WIP. The female (bottom) has a blue WIP while the male (top) displays a green WIP D an individual of Elliptera clausa Osten Sacken, 1877 displaying a WIP with wings folded. Sex unknown. Copyright (A, B) 2021, photograph JK Gelhaus; (C) 2020, photograph Katja Schulz, used with permission by the artist and under a creative commons license ( with alterations limited to cropping and resizing of this image; (D) 2016, photograph JK Gelhaus. Images are not to scale.

  Part of: Conrow RT, Gelhaus JK (2022) ´╗┐Wing interference patterns are consistent and sexually dimorphic in the four families of crane flies (Diptera, Tipuloidea). ZooKeys 1080: 135-163.