The family Polycentropodidae (Insecta, Trichoptera) in mid-Cretaceous Burmese Amber Author Wichard, Wilfried https://orcid.org/0000-0002-5933-6292 Universitaet zu Koeln, Institute of Biology and its Didactics, Herbert Lewinstrasse 2, 50931 Cologne, Germany Author Xu, Chunpeng https://orcid.org/0000-0003-4991-4279 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, China cpxu@nigpas.ac.cn text ZooKeys 2022 2022-12-09 1134 171 183 http://dx.doi.org/10.3897/zookeys.1134.93999 journal article http://dx.doi.org/10.3897/zookeys.1134.93999 1313-2970-1134-171 0DCD69C86FF846618AB4E31BAF26F6D7 EDDE25C0A46950BABBBF4C2E6C4EB9C6 Plectrocnemia ohlhoffi sp. nov. Fig. 4 Diagnosis. The extinct species Plectrocnemia ohlhoffi sp. nov. is characterized by a pair of elongate inferior appendages, slightly diverging distally and slightly curved apically toward each other. The appendages are weakly concave mesally along their length. In ventral view, each appendage is rounded at the apex and slightly concave in shape apicolaterally, each with a subapical tooth and a weakly projecting apicomesal corner. Figure 4. Plectrocnemia ohlhoffi sp. nov. A male holotype (ZFMK-TRI000834) habitus, ventral view B inferior appendages, left ventrolateral view C drawing of inferior appendages, left ventrolateral view. Scale bar: 1 mm. Etymology. The fossil species is dedicated to Rainer Ohlhoff, who donated the type specimen to the Zoological Research Museum Alexander Koenig, Bonn, Germany (ZFMK) for permanent preservation. Holotype. ♂; Myanmar, Kachin State, Hukawng Valley; exact locality unknown; Mid-Cretaceous Burmese amber inclusion; deposited in the amber collection of the ZFMK; former Rainer Ohlhoff collection; ZFMK-TRI000834. Description. Genus as described above. Body well preserved, visible in left ventrolateral view. Forewing length about 4.2 mm. Forewings hyaline, light brown. Antennae about two-thirds as long as forewings with about 30 flagellomeres plus scapus and pedicellus; left antenna incomplete. Inferior appendages elongate, each forming an elongate shell and both inclining towards the genital midline.