@article {187, title = {Description of larvae of Japanese Macronychini (Coleoptera: Elmidae: Elminae)}, journal = {Zootaxa}, volume = {4859}, year = {2020}, pages = {195{\textendash}227}, abstract = {

Larvae of 15 species of Macronychini, subfamily Elminae, belonging to the genera Sinonychus J\äch \& Boukal, Paramacronychus Nomura, Zaitzeviaria Nomura, Zaitzevia Champion, and Urumaelmis Sat\ô were described based on scanning electron microscope (SEM) observation. Larvae of eleven of these species, S. tsujunensis Yoshitomi \& Nakajima, Zaitzeviaria gotoi (Nomura), Zaitzeviaria brevis (Nomura), Zaitzeviaria kuriharai Kamite, Ogata \& Sat\ô, Zaitzevia elongata Nomura, Zaitzevia aritai Sat\ô, Zaitzevia yaeyamana Sat\ô, Zaitzevia awana (Kôno), Zaitzevia nitida Nomura, Zaitzevia tsushimana Nomura, and U. uenoi (Nomura) are described for the first time.

}, keywords = {aquatic beetle, Byrrhoidea, Dryopoidea, immature stage, Oriental Region, Palaearctic Region, riffle beetle}, author = {M. Hayashi and Y. Kamite} } @article {163, title = {Unexpected discovery of a new Podonychus species in Kyushu, Japan (Coleoptera, Elmidae, Elminae, Macronychini)}, journal = {Zookeys}, volume = {933}, year = {2020}, pages = {107{\textendash}123}, abstract = {

Podonychus gyobu sp. nov., a second species of the genus Podonychus J\äch \& Kodada, 1997, hitherto known only from Indonesia, is described from Kyushu, Japan. This new species is similar to P. sagittarius\ J\äch \& Kodada, 1997, but differs from it in the straight penis, arcuate 2nd labial palpomere, and in the 3rd antennomere being longer than wide. The endophallic structures and the larva of P. gyobu sp. nov. are described. A character matrix of the Macronychini genera and a key to the Japanese genera are provided.

}, keywords = {disjunct distribution, endophallus, larvae, new species, riffle beetle, SEM, taxonomy}, doi = {https://doi.org/10.3897/zookeys.933.48771}, url = {https://zookeys.pensoft.net/article/48771/}, author = {H. Yoshitomi and M. Hayashi} }