The morphology of mouthparts, wings and genitalia of Paleozoic insect families Protohymenidae and Scytohymenidae reveals new details and supposed function

Pecharová, Martina; Prokop, Jakub

doi:10.1016/j.asd.2017.11.006

Cited by 12 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Details of the locality can be found in Ponomaryova et al [ 35 ], Aristov [ 2 ] and Aristov and Rasnitsyn [ 1 ]. The results of previous studies on megasecopterans reveal exceptional preservation of fine surface microstructures on some specimens and their suitability for study using environmental electron scanning microscopy [ 34 ].…”

Section: Methodsmentioning

confidence: 99%

Life history, systematics and flight ability of the Early Permian stem-mayflies in the genus Misthodotes Sellards, 1909 (Insecta, Ephemerida, Permoplectoptera)

et al. 2021

Self Cite

View full text Add to dashboard Cite

Background The stem-group of Ephemeroptera is phylogenetically important for understanding key steps in evolutionary history of early pterygote insects. However, these taxa have been mostly studied from the taxonomy point of view focused on the pattern of wing venation and often using only classical optical microscopy devices. In-depth studies on detailed morphology of the different body structures are scarcely performed, although the results are critical for elucidation of life history traits and their evolutionary pattern among the basal pterygotes. Results New information is presented on the morphology of two species of Misthodotes, which are stem-mayflies from the Early Permian. Based on new results obtained from a re-examination of the type specimens and supplementary material, we infer the life history traits of both the adult and larval stages of these Palaeozoic insects and reconsider previous interpretations. For the first time, we report the structure of the thoracic pleura and the articulation at the base of the wing in a stem-group of Ephemeroptera and compare them with those of extant mayflies. We also provide additional support for the systematic placement of investigated taxa and an amended diagnosis of the genus Misthodotes. Conclusions Adult Misthodotes sharovi and Misthodotes zalesskyi had chewing mouthparts, which enabled them to scavenge or feed on plants. The wing apparatus was adapted for slow powered flapping flight and gliding, using long caudal filaments for steering. The wing base does not have rows of articulary sclerites as previously hypothesized for some Palaeozoic taxa but inflexible axilla similar to that found in modern mayflies. The structure of the thoracic pleura is also similar to that in the crown group of Ephemeroptera, while differences in the course of sutures may be explained by an evolutionary trend towards more powerful dorsoventral flying musculature and forewing-based flight (anteromotorism) in modern taxa. There is no evidence for swarming behaviour and mating in the air as occurs in modern mayflies as they had none of the associated morphological adaptations. Putative larvae of Misthodotes can not be unambiguously associated with the adults. They also exhibit some morphological specializations of Protereismatidae like 9 pairs of abdominal tracheal gills supporting their benthic lifestyle with legs adapted to burrowing.

show abstract

Section: Methodsmentioning

confidence: 99%

Life history, systematics and flight ability of the Early Permian stem-mayflies in the genus Misthodotes Sellards, 1909 (Insecta, Ephemerida, Permoplectoptera)

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…We follow the wing venation nomenclature of Pecharová and Prokop (2018) urn:lsid:zoobank.org:pub:0DD5CB29-1A1F-41FE-BA4C-D114CA1EB22C…”

Section: Methodsmentioning

confidence: 99%

“…This family is putatively recorded from China by the Early Permian genus Sunohymen Hong, 1985, from Shanxi Formation, Artinskian, 290.1 -279.5 Ma, after Zhang et al (1997; but Hong (1985a) supposed that the formation was Late Carboniferous. Pecharová and Prokop (2018) put in doubt this family attribution. Hong (1985b) described four bardohymenid species in three genera, viz.…”

Section: Introductionmentioning

confidence: 99%

The first Chinese Protohymenidae (palaeoptera: megasecoptera)

Huang

Lian

et al. 2021

Historical Biology

View full text Add to dashboard Cite

Anhuihymen medianelongata Huang and Nel, gen. nov. et sp. nov., first accurate Chinese Protohymenidae, is described from the Middle Permian Yinping Formation at Chaohu, Anhui Province, Southern China. This region was under a warm and humid climate and separated from the drier Laurussia by the paleo-Thetys ocean during the Middle Permian. This discovery shows that this group was probably very widely distributed during the Permian, and adapted to very different climates and biotas. It also confirms that our current knowledge on the Permian fossil insects is very fragmentary.

show abstract

The Fossil Record of Insect Mouthparts: Innovation, Functional Convergence, and Associations with Other Organisms

Labandeira

2019

Insect Mouthparts

View full text Add to dashboard Cite

The morphology of mouthparts, wings and genitalia of Paleozoic insect families Protohymenidae and Scytohymenidae reveals new details and supposed function

Cited by 12 publications

References 31 publications

Life history, systematics and flight ability of the Early Permian stem-mayflies in the genus Misthodotes Sellards, 1909 (Insecta, Ephemerida, Permoplectoptera)

Life history, systematics and flight ability of the Early Permian stem-mayflies in the genus Misthodotes Sellards, 1909 (Insecta, Ephemerida, Permoplectoptera)

The first Chinese Protohymenidae (palaeoptera: megasecoptera)

The Fossil Record of Insect Mouthparts: Innovation, Functional Convergence, and Associations with Other Organisms

Contact Info

Product

Resources

About