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Article
Published: 2021-08-31

The odontocerid genera Psilotreta and Palaeopsilotreta (Insecta, Trichoptera) embedded in mid-Cretaceous Burmese amber

Universität zu Köln, Institute of Biology and its Didactics, Herbert Lewinstraße 2, 50931 Cologne, Germany
Friedhofstraße 9, 66894 Käshofen, Germany
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, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, PR China
Odontoceridae fossil caddisflies bipectinate antennae sexual dimorphism. Trichoptera Insecta

Abstract

The trichopteran family Odontoceridae is reported in mid-Cretaceous Burmese amber by two genera: the extant Psilotreta, with one described extinct species, P. fossilis sp. nov.; and the extinct Palaeopsilotreta, with five species, two of which are newly found and described here, P. kachini sp. nov., P. succini sp. nov. The two genera are closely related and show great similarities in the venation of the forewings and hindwings, but their males differ markedly in the shape of the antennae. In Palaeopsilotreta the males have bipectinate antennae and in Psilotreta the antennae are simple and filiform.

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