@article {199, title = {Revision of the Genus Zaitzevia (Coleoptera: Elmidae) of Japan}, journal = {Japanese Journal of Systematic Entomology}, volume = {28}, year = {2022}, pages = {116{\textendash}141}, abstract = {

Japanese species of the genus Zaitzevia are revised taxonomically. Nine species including one new species, Zaitzevia wakayamana sp. nov. from Honshu (Wakayama Pref.) are recognized in Japanese fauna. All the species are described or redescribed with figures of habitus, elytra, elytral epipleura and male genitalia. Endophallic structures of seven species are described. A key to Japanese species is also given.

}, keywords = {Elminae, endophallus, Macronychini, new species}, author = {T. Iwata and M. Hayashi and H. Yoshitomi} } @article {190, title = {A New Species of Zaitzeviaria from Aichi Prefecture, Honshu, Japan (Coleoptera: Elmidae)}, journal = {Japanese Journal of Systematic Entomology}, volume = {27}, year = {2021}, pages = {43{\textendash}51}, abstract = {

A new species, Zaitzeviaria takafumii sp. nov., is described from Aichi Prefecture, Honshu, Japan. It is closely related to Zaitzeviaria sotai Hayashi \& Yoshitomi, 2015. A revised key to species and check list of the Japanese members of the genus are given.

}, author = {M. Hayashi and H. Yoshitomi} } @article {189, title = {Molecular phylogeny of Elmidae (Coleoptera: Byrrhoidea) with a focus on Japanese species: implications for intrafamilial classification}, journal = {Systematic Entomology}, year = {2021}, abstract = {

Elmidae (Coleoptera: Byrrhoidea) comprises diverse groups of specialized aquatic beetles, but the phylogenetic positions of the intrafamilial taxonomic groups remain unclear. We performed phylogenetic analyses of 26 genera and 73 elmid species and subspecies representing four of the five currently recognized tribes from Holarctic region (Japan, Europe and North America) using sequence data from up to 585 ultraconserved elements (UCEs). The UCE-based phylogenetic trees inferred by both maximum-likelihood and Bayesian inference methods resolved most of the phylogenetic relationships with high support. Our results indicate that a revised classification for the intrafamilial taxonomic groups in Elmidae is necessary. We also examined the correspondence of the character states of ten adult and larval morphological traits to the phylogeny and identified several traits that are potentially useful for defining intrafamilial taxonomic groups in Elmidae. Based on the molecular phylogeny and morphology of adults and larvae, Gonielmis Sanderson syn. n. and Optioservus Sanderson syn. n. are synonymized with Heterlimnius Hinton. Nomuraelmis Sat\ô syn. n. was also synonymized with Stenelmis Dufour. A revised checklist and an identification
key to the species groups are provided for Heterlimnius.

}, doi = {https://doi.org/10.1111/syen.12499}, author = {T. Kobayashi and M. Hayashi and Y. Kamite and T. Sota} } @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} } @article {139, title = {Description of Larva of Dryopomorphus yaku Yoshitomi et Sat{\^o} with Distributional and Ecological Notes on the Japanese Members of the Genus Dryopomorphus Hinton (Coleoptera: Elmidae)}, journal = {Entomological Review of Japan}, volume = {64}, year = {2009}, pages = {41-50}, abstract = {

Larva of Dryopomorphus yaku Yoshitomi et Sat\ô from Yakushima Is. is descried. Larva of Dryopomorphus yaku resembles that of D. amami in external morphology including microstructure on body surface

}, keywords = {Coleoptera, Dryopomorphus yaku, Elmidae, larva}, author = {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} }