Caught in the act of hatching – a group of heteropteran nymphs escaping from their eggs preserved in Dominican amber

Abstract

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Phylogenetic relationships and divergence dating of Mantodea using mitochondrial phylogenomics

“…Due to the rarity of fossil mantises, our understanding of the historical evolution of the lineage and selection of reliable fossil calibrations for molecular dating has been hampered (Delclòs et al, 2016). Until recently, only 29 fossil mantises have been described and 21 of them were found in the Cretaceous, preserved in copal, amber and as compression fossils (Gratshev & Zherikhin, 1993; Grimaldi, 2003; Grimaldi & Engel, 2005; Hörnig et al, 2013). However, most Cretaceous mantises possessed plesiomorphic traits, such as patterns of wing venation, the profemoral brush, the profemoral spines, and/or the protibial spur, that are quite different from extant mantis lineages (Grimaldi, 2003).…”

A hatching aphidlion‐like lacewing larva in 100 million years old Kachin amber

“…Yet, there are preservation types that seem to favor such incidents. Amber has become famous for preserving cases of "frozen behaviour", preserving a specific moment in the life of an animal in an almost life-like manner (Arillo, 2007), including: copulations, parasite-host interactions, aggregations, group defense, brood care, egg-laying (although likely stress-induced), but also animals hatching from their eggs (examples in e.g., Weitschat & Wichard, 2002;Engel & Grimaldi, 2008;Weitschat, 2009;Boucot & Poinar, 2010;Gröhn, 2015;Hörnig et al, 2016Hörnig et al, , 2019Hörnig et al, , 2020Hörnig et al, , 2022Pérez-de la Fuente et al, 2019). Preserved eggs are often difficult to identify as such in amber due to the low number of characters and often being rather soft.…”

“…Amber has become famous for preserving cases of “frozen behaviour”, preserving a specific moment in the life of an animal in an almost life‐like manner (Arillo, 2007), including: copulations, parasite‐host interactions, aggregations, group defense, brood care, egg‐laying (although likely stress‐induced), but also animals hatching from their eggs (examples in e.g., Weitschat & Wichard, 2002; Engel & Grimaldi, 2008; Weitschat, 2009; Boucot & Poinar, 2010; Gröhn, 2015; Hörnig et al. , 2016, 2019, 2020, 2022; Fischer & Hörnig, 2019; Pérez‐de la Fuente et al. , 2019).…”

“…2, 82152 Planegg-Martinsried, Germany. Email: joachim.haug@palaeo-evo-devo.info bugs hatching from their highly specialised eggs with distinct "lids", offering more characters to identify such eggs even as fossils (Hörnig et al, 2019), but also lacewings. A small lacewing larva in late Cretaceous Canadian amber (redrawn in Fig.…”

A case of frozen behaviour: A flat wasp female with a beetle larva in its grasp in 100-million-year-old amber

“…Within euarthropods, especially cases of insects preserved in amber have been documented, e.g. during mating (Weitschat and Wichard 2002;Grimaldi and Engel 2005;Weitschat 2009;Boucot and Poinar 2010;Gröhn 2015;Fischer and Hörnig 2019), hatching (Weitschat 2009;Boucot and Poinar 2010;Gröhn 2015;Hörnig et al 2019;Pérez-de la Fuente et al 2019), feeding (Grimaldi 1996;Weitschat and Wichard 2002;Boucot and Poinar 2010;Gröhn 2015;Wang et al 2016;Hörnig et al 2020) and other behaviours (Boucot and Poinar 2010;Hsieh and Plotnik 2020).…”