New species of caddisflies with bipectinate antennae from Cretaceous Burmese amber (Insecta, Trichoptera: Odontoceratidae, Calamoceratidae)

  • Wilfried Wichard Institute of Biology and its Didactics, University of Cologne, Herbert Lewinstrasse 2, 50931 Köln
  • Marianne Espeland Arthropoda Department, Zoological Research Museum Alexander Koenig, Adenauer-Allee 160, 53113 Bonn
  • Patrick Müller Friedhofstraße 9, 66894 Kashofen
  • Bo Wang State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008
DOI: https://doi.org/10.5852/ejt.2020.653
Keywords: amber inclusion, Mid-Cretaceous, Myanmar, freshwater, aquatic insects

Abstract

Three new fossil species from Burmese amber are described, one clearly in family Calamoceratidae, the other two in the highly variable family Odontoceridae. The family Odontoceridae contains 18 disparate genera, but there are no good diagnostic characters, which makes it difficult to place fossil taxa in this family. We here offer a revised diagnosis for the family, highlighting the lack of good diagnostic characters, and the need to use sets of characters to place (extinct) taxa in this family. On this taxonomic basis we describe two new species in the hitherto monotypic fossil genus Palaeopsilotreta Wichard & Wang, 2017 (Odontoceridae), Palaeopsilotreta burmanica sp. nov. and P. cretacea sp. nov., redescribe the type species based on additional information, and describe features of the female, based on two specimens, one of which is embedded adjacent to a male identified as P. xiai. Males of Palaeopsilotreta bear bipectinate antennae; the antennae of the females are simple and filiform. Similarly, bipectinate antennae are present in the third species we describe, Bipectinata orientalis gen. et sp. nov., which otherwise lacks the character combinations associated with the Odontoceridae, but clearly can be assigned to the family Calamoceratidae.

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Published
2020-05-27
How to Cite
Wichard, W., Espeland, M., Müller, P., & Wang, B. (2020). New species of caddisflies with bipectinate antennae from Cretaceous Burmese amber (Insecta, Trichoptera: Odontoceratidae, Calamoceratidae). European Journal of Taxonomy, (653). https://doi.org/10.5852/ejt.2020.653
Issue
No. 653 (2020): New species of caddisflies with bipectinate antennae from Cretaceous Burmese amber (Insecta, Trichoptera: Odontoceratidae, Calamoceratidae)
Section
Palaeontology

Copyright (c) 2020 Wilfried Wichard, Marianne Espeland, Patrick Müller, Bo Wang

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