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
Keywords: amber inclusion, Mid-Cretaceous, Myanmar, freshwater, aquatic insects


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.


Henderson I. & Ward J.B. 2006. Four new species of the caddis genus Philorheithrus (Trichoptera: Philorheithridae) from New Zealand. Records of the Canterbury Museum 20: 21–33.

Holzenthal R.W., Blahnik R.J., Prather A.L. & Kjer K.M. 2007. Order Trichoptera Kirby, 1813 (Insecta), Caddisflies. Zootaxa 1668: 639–698.

Johanson K.A., Malm T. & Espeland M. 2017. Molecular phylogeny of Sericostomatoidea (Trichoptera) with the establishment of three new families. Systematic Entomology 42: 240–266.

Kania I., Wang B. & Szwedo J. 2015. Dicranoptycha Osten Sacken, 1860 (Diptera, Limoniidae) from the earliest Upper Cretaceous Burmese amber. Cretaceous Research 52: 522–530.

Kjer K.M., Thomas J.A., Zhou X., Frandsen P.B., Prendini E. & Holzenthal R.W. 2016. Progress on the phylogeny of caddisflies (Trichoptera). Zoosymposia 10: 248–256.

Malm T. Johanson K.A. & Wahlberg N. 2013. The evolutionary history of Trichoptera (Insecta): A case of successful adaptation to life in freshwater. Systematic Entomology 38: 459–473.

Mosely M.E. & Kimmins D.E. 1953. The Trichoptera (Caddis-Flies) of Australia and New Zealand. British Museum of Natural History, London.

Oláh J. & Johanson K.A. 2010. Description of 33 new species of Calamoceratidae, Molannidae, Odontoceridae and Philorheithridae (Trichoptera), with detailed presentation of their cephalic setal warts and grooves. Zootaxa 2457: 1–128.

Oláh J. & Johanson K. 2011. Description of a new endemic genus of Trichoptera from Madagascar (Odontoceridae). Acta Zoologica Academiae Scientiarum Hungaricae 57: 117–129.

Schmid F. 1955. Contributions à la connaissuance des Trichoptères néotropicaux. Mémoires de la Société vaudoise des Sciences naturelles 11: 117–160.

Schmid F. 1964. Contribution à l’étude des Trichoptères néotropicaux V. Tijdschrift voor Entomologie 107: 307–339.

Schmid F. 1980. Genera des Trichoptères du Canada et des Etats adjacents. Les insectes et arachnides du Canada 7. Direction de la recherche, Agriculture Canada, Ottawa.

Shi G., Grimaldi D.A., Harlow G.E., Wang J., Wang J., Yang M., Lei W., Li Q. & Li X. 2012. Age constraint on Burmese amber based on U-Pb dating of zircons. Cretaceous Research 37: 155–163.

Sukatcheva I.D. & Vassilenko D.V. 2011. Caddisflies from Chernovskie Kopi (Jurassic/Cretaceous of Transbaikalia). Zoosymposia 5: 434–438.

Thomas J.A., Frandsen P.B., Prendini E., Zhou X. & Holzenthal R.W. 2020. A multigene phylogeny and timeline for Trichoptera (Insecta). Systematic Entomology.

Ulmer G. 1912. Trichopteren des Baltischen Bernsteins. Beiträge zur Naturkunde Preussens 10: 1–380.

Weaver III J.S., Gibon F.-M. & Chvojka P. 2008. A new genus of Philorheithridae (Trichoptera) from Madagascar. Zootaxa 1825: 18–28.

Wichard W. 2009. Overview and Description of Trichoptera in Baltic Amber – Spicipalpia and Integripalpia. Verlag Dr. Kessel, Remagen-Oberwinter.

Wichard W. & Wang B. 2017. A remarkable caddisfly with bipectinate antennae in Cretaceous Burmese amber (Insecta, Trichoptera). Cretaceous Research 69: 198–203.

Wichard W., Espeland M. & Wang B. 2018. Caddisflies with unusual hair-fans on the legs in Cretaceous Burmese amber (Insecta, Trichoptera). Palaeodiversity 11: 21–28.

Wiggins G.B. 1996. Larvae of the North American Caddisfly Genera (Trichoptera). University of Toronto Press, Toronto.

Yang L.-F., Yuan H.-Y. & Morse J.C. 2017. Lannapsyche and Marilia species of China (Trichoptera: Odontoceridae). Zootaxa 4320: 81–99.

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).