Chresmoda
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Chresmoda is an extinct genus of insects within the family Chresmodidae.
Chresmoda is an extinct genus of insects within the family Chresmodidae.
Description
Chresmoda are large enigmatic insects with very long specialized legs, probably adapted for skating on the water surface similar to pond skaters. They can reach a body length of about , with a forewing length of about . Some large specimens could reached a size of about . These Polyneoptera of uncertain position have been considered aquatic and living on the water surface, probably predaceous on nektonic small animals. They lived during the Cretaceous of Brazil, China, Lebanon, Spain, United Kingdom, Mongolia and Myanmar, as well as in the Late Jurassic of Germany, from 150.8 to 93.5 Ma from the Tithonian to the Cenomanian ages. While most species are known from compression fossils, Chresmoda chikuni is known from well preserved 3-dimensional specimens in amber.
Species
Chresmoda aquatica Martinez-Delclos, 1989 La Pedrera de Rubies Formation and Las Hoyas, Spain, Barremian Chresmoda chikuni Zhang & Ge in Zhang et al., 2017 Burmese amber, Myanmar, Cenomanian Chresmoda libanica Nel et al., 2004 Sannine Formation, Lebanon, Cenomanian Chresmoda multinervis Zhang et al., 2009 Dabeigou Formation, China, Early Cretaceous Chresmoda mongolica Ponomarenko, 1986 Gurvan-Eren Formation, Mongolia, Aptian Chresmoda neotropica Engel & Heads, 2008 Crato Formation, Brazil, Aptian Chresmoda obscura Germar, 1839 Solnhofen Limestone, Germany, Tithonian : can reach a size of about . These Polyneoptera of uncertain position have been considered aquatic and terrestrial bug or phasmids. They should instead be anomalous paraplecopterids living on the water surface, probably predaceous on nektonic small animals. They lived during the Jurassic of Germany, from 150.8 to 145.5 Ma. Chresmoda orientalis Esaki, 1949 Yixian Formation, China, Aptian Chresmoda oweni Westwood, 1854 Purbeck Group, United Kingdom, Berriasian Chresmoda shihi Zhang et al., 2009 Dabeigou Formation, China, Early Cretaceous
References
External links
Text derived from https://en.wikipedia.org/w/index.php?oldid=1352148581 under CC BY-SA 4.0; modifications have been made.