@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} } @article {71, title = {Endophallic Structure of the Genus Zaitzeviaria Nomura (Coleoptera, Elmidae, Elminae), with Review of Japanese Species}, journal = {Elytra, Tokyo, New Series}, volume = {5}, year = {2015}, pages = {67-96}, abstract = {

The endophallus of the genus Zaitzeviaria is characterized by membranous sac with several bladders covered by spines. The endophallic structures of most members are observed in detail and their homologies are examined. Five Japanese members of the genus including a new species are reviewed: Z. sotai sp. nov., Z. ovata (Nomura), Z. brevis (Nomura), Z. gotoi (Nomura) and Z. kuriharai Kamite, Ogata et M. Sat\ô. Zaitzeviaria sotai sp. nov. is collected from Shimane and Tottori Prefectures including Oki Islands.

}, keywords = {comparative morphology, internal sac of aedeagus, Macronychini, riffle beetle}, author = {M. Hayashi and H. Yoshitomi} }