Shuhei Yamamoto

Shuhei Yamamoto
Hokkaido University | Hokudai · Hokkaio University Museum

Ph.D.

About

108
Publications
31,641
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1,053
Citations
Citations since 2017
80 Research Items
999 Citations
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
Introduction
Dr. Shuhei Yamamoto is conducting research on the beetle superfamily Staphylinoidea at The Hokkaido University Museum. His research interests are the systematics, paleontology, and natural history of Staphylinoidea, especially those for the tachyporine group of subfamilies (Staphylinidae). He received his Ph.D. degree in agricultural sciences on March 2017. The research field is becoming broader annually, spanning taxonomy, phylogeny, paleontology, ecology, and even engineering (biomimetics).
Additional affiliations
July 2017 - present
Field Museum of Natural History
Position
  • Fellow
April 2017 - June 2017
Kyushu University
Position
  • Research Assistant
April 2015 - March 2017
Japan Society for the Promotion of Science
Position
  • Research Fellow (DC1)

Publications

Publications (108)
Article
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Significance Rove beetles are known to fold their wings in the most complicated and sophisticated ways that have right–left asymmetric patterns. This asymmetric folding can confer both high deployment capability and high storage efficiency, and therefore has a great deal of potential for engineering applications. However, the detailed folding mecha...
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The evolution of eusociality in ants and termites propelled both insect groups to their modern ecological dominance. Yet, eusociality also fostered the evolution of social parasitism—an adverse symbiosis, in which the superorganismal colonies formed by these insects are infiltrated by a profusion of invertebrate species that target nest resources....
Article
Jacobsoniidae is a small but perplexing beetle family, with unknown phylogenetic relationships to other polyphagan Coleoptera. To date, only a single fossil jacobsoniid has been described, from Eocene Baltic amber (~ 40 Ma). Here, we push back the oldest definitive record of Jacobsoniidae by approximately 60 million years with a new fossil species...
Article
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Beetles (Coleoptera) comprise about one quarter of all described animal species. One of the main contributors to their evolutionary success is the elytra, or hardened forewings, which have protective functions while maintaining their ability to fly. Unlike other beetles, some ship-timber beetles (Lymexylidae) have extremely small elytra and largely...
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Tachyporinae are one of the most phylogenetically problematic subfamilies in the mega-diverse rove beetle family Staphylinidae. Despite its high diversity and abundance in forest micro-environments, with over 1600 species worldwide, several previous studies had refuted the monophyly of this subfamily and its largest tribe, Tachyporini. Based on the...
Article
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A new genus and species of cimicoid true bug, Ecpaglocoris ditomeus Yamada & Yamamoto, gen. et sp. nov. , is described and illustrated from mid-Cretaceous (Cenomanian–Albian) amber in the Kachin State of northern Myanmar (Burma). This new fossil genus and species is reminiscent of members of Anthocoridae by the strongly flattened and elongated body...
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The genus Pseudoligota Cameron, 1920 is discovered in Japan for the first time, resulting in two taxonomic changes: a new combination P. antennata (Bernhauer, 1907), comb. nov., and a new species P. nozakii Hashizume, Yamamoto & Maruyama, sp. nov. from Okinawa Prefecture, southwestern Japan. The former species has long been placed in the genus Olig...
Article
Eleusinini is the smallest osoriine tribe, consisting of 221 species in three genera. No fossil Eleusinini has been found until now. Here, I describe the first extinct representative of eleusinin rove beetles, Eleusis sulcata n. sp., based on a well-preserved adult specimen from the mid-Cretaceous Kachin amber in northern Myanmar. This new species...
Article
Sphaeriusidae (Coleoptera: Myxophaga) is a group of shiny, blackish and hemispherical riparian beetles, known for their miniaturized bodies. They are worldwide in distribution , but very limited information is available about taxonomic and morphological diversity, and natural and evolutionary history. The aim of this study is to help fill in these...
Article
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To date, no species catalogue of stag beetles (Lucanidae) has been compiled for Cambodia. According to the available literature, we assembled the checklist based on the previously recorded and recognized Cambodian lucanid species in the country. In the present paper, we newly record four species from Cambodia: Falcicornis axisopsis (Séguy, 1954); N...
Article
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Myrmecophily is a phenomenon of the symbiosis of organisms that depend on various ant (Formicidae) societies. Such interspecies associations are found in several unrelated lineages within the clown beetle family Histeridae. Recent studies have suggested that the origin of myrmecophily can be traced back to mid-Cretaceous based on a few fossil recor...
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The fossil record allows a unique glimpse into the evolutionary history of organisms living on Earth today. We discovered a specimen of the stem group ant †Gerontoformica gracilis (Barden and Grimaldi, 2014) in Kachin amber with near-complete preservation of internal head structures, which we document employing μ-computed-tomography-based 3D recons...
Article
Tropical Indonesia has a rich biota. The fauna of stag beetles (Lucanidae) is relatively well understood in Indonesia, with numerous endemic species, including on the island of Java. Gnaphaloryx (Lucaninae: Dorcini) is a small genus of stag beetles mainly distributed in the Oriental Region. A new lucanid species, Gnaphaloryx rectus Yamamoto sp. nov...
Article
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A new fossil species of Hemerobiidae, Archaeomegalomus burmiticus gen. et sp. nov., is described from mid-Cretaceous Kachin amber of northern Myanmar. This new genus is the third Mesozoic Hemerobiidae with a single stem of the radius posterior (RP) in the forewing. This suggests that A. burmiticus is one of the specialized side branches within the...
Article
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The fossils once assigned to Raractocetus Kurosawa from the Mesozoic and Cenozoic amber deposits differ from extant Raractocetus in the longer elytra, the more strongly projecting metacoxae, and the hind wing with vein 2A forked. Thus, these fossils should be removed from Raractocetus. Cretoquadratus engeli Chen from Kachin amber appears to be cons...
Article
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Beetles constitute the most biodiverse animal order with over 380 000 described species and possibly several million more yet unnamed. Recent phylogenomic studies have arrived at considerably incongruent topologies and widely varying estimates of divergence dates for major beetle clades. Here, we use a dataset of 68 single-copy nuclear protein-codi...
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It is generally assumed that Cretaceous stem ants were obligately eusocial, because of the presence of wingless adult females, yet the available evidence is ambiguous. Here, we report the syninclusion of a pupa and adult of a stem ant species from Mid-Cretaceous amber. As brood are immobile, the pupa was likely to have been transported by an adult....
Article
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A new lymexylid fossil species, † Raractocetus sverlilo Nazarenko, Perkovsky & Yamamoto, sp. nov. , is described from late Eocene Rovno amber of Ukraine. This new species is similar to species of the recent genera Atractocerus Palisot de Beauvois and Raractocetus Kurosawa in the ship-timber beetle subfamily Atractocerinae, but differs in pronotal a...
Article
Four Japanese species the rove beetle genus Myllaena are redescribed based on the type material. They are: M. japonica Sharp, 1888, M. lewisi Cameron, 1933, M. rufotestacea Cameron, 1933, and M. torrentum Cameron, 1933. Myllaena chinoculata Pace, 1998 described from China is synonymized with M. lewisi. All of these species are illustrated and mappe...
Article
Phloeocharinae is a small and likely non-monophyletic subfamily of rove beetles. The enigmatic genus Charhyphus Sharp, 1887 has long been placed in Phloeocharinae, whereas recent studies have found it to be phylogenetically very distant from the core members of this subfamily, suggesting the possibility that it actually deserves its own separate su...
Article
Thorny lacewings (Rhachiberothidae) are a small group of Neuroptera, and currently distributed only within sub-Saharan Africa. They are relatively abundant in the fossil record of various Cretaceous ambers across the Northern Hemisphere, but all the Cretaceous rhachiberothids belong to the extinct subfamily Paraberothinae. Here, a new thorny lacewi...
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Glesoconomorphus ekaterinae sp. nov. (Coleoptera, Mycteridae), representing the first ever fossil species of Coleoptera from the Volyn Region of Ukraine and the first mycterid from late Eocene Rovno amber, is described and illustrated. A key to species of the fossil mycterid genus Glesoconomorphus Alekseev, Pollock & Bukejs, 2019 is presented. The...
Article
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Animals highly depend on their sensory organs to detect information about their surrounding environment. Among animal sensory organs, those of insects have a notable ability to detect information despite their small size, which might be, therefore, one of the reasons for the evolutionary success of insects. However, insect sensory organs are seldom...
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We describe a new psocid genus and species, †Burmesopsocus lienhardi Yoshizawa, based on a fossil specimen embedded in mid-Cretaceous Burmese (Kachin) amber. Phylogenetic analysis based on the morphological data strongly suggest that the species is a member of the suborder Psocomorpha and may belong to the infraorder Homilopsocidea. However, its fa...
Preprint
Full-text available
With over 380,000 described species and possibly several million more yet unnamed, beetles represent the most biodiverse animal order. Recent phylogenomic studies have arrived at considerably incongruent topologies and widely varying estimates of divergence dates for major beetle clades. Here we use a dataset of 68 single-copy nuclear protein codin...
Article
Trichophyinae is one of the smallest subfamilies of the megadiverse rove-beetle family Staphylinidae, with only 18 species in the single extant genus Trichophya Mannerheim. Here we describe the first fossil representative of Trichophyinae in mid-Cretaceous amber from Kachin, northern Myanmar. †Trichophya minor sp. nov. is unusual in having non-fili...
Article
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The third member of the extinct ommatid genus Paraodontomma is reported from mid-Cretaceous Burmese amber. Our observation confirms the transverse ridges on elytra as a diagnostic character for the genus. Paraodontomma leptocristatum sp. nov. differs from previously reported congeners mainly in head subquadrate and without prominent protuberances,...
Article
The fossil lace bug genus Burmacader Heiss & Guilbert, 2013 (Hemiptera: Heteroptera: Tingidae) is known solely from mid-Cretaceous Kachin amber from northern Myanmar. Its phylogenetic position may represent an extinct lineage sister to the megadiverse Tinginae + Cantacaderinae clade. Here, a new species of Burmacader is described under the name B....
Article
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A total of 14 species in seven tingid genera have been described from the mid-Cretaceous Burmese (Kachin) amber from northern Myanmar, with very distinct paleofauna. Here, a new species of a new genus, Burmavianaida anomalocapitata gen. et sp. nov., is described from Kachin amber. This new species can be readily distinguished from the other describ...
Article
A new tenebrionoid beetle genus with two species, Kulindrobor enigmaticus gen. et sp. nov. and Kulindrobor magnus gen. et sp. nov., is described from mid-Cretaceous Burmese amber. This highly distinctive genus differs from all extant tenebrionoid families. The beetle’s unusual elongate and subcylindrical body with a long prothorax and appendages su...
Article
Stegocoleus Jarzembowski & Wang is an enigmatic genus in the family Ommatidae, known to date only from Burmese amber. This genus possesses a unique combination of characters, including antennal grooves on the ventral side of head, well-developed epipleural rims, and presence of separated procoxae, which makes its systematic position unclear. Here w...
Article
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Recent findings of ommatids from mid-Cretaceous Burmese amber have greatly increased our knowledge on the Mesozoic diversity of Ommatidae. Here, we report the first distinctly miniaturized ommatid species, Miniomma chenkuni gen. et sp. nov., entombed in mid-Cretaceous amber from northern Myanmar. This new fossil species is characterized by its smal...
Article
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An unusual new omaliine species, Anthobium alekseevi sp. nov., is described and illustrated from Eocene Baltic amber, tentatively placed in the megadiverse genus Anthobium Leach, 1819. A new monotypic species-group is established. The new species can easily be distinguished from other species of the genus by the larger body, shape of the subrectang...
Article
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Within the hyperdiverse beetle family Staphylinidae, Dasycerinae is one of the smallest and most cryptic subfamilies, comprising a sole extant genus characterized by a latridiid beetle‐like body form. Little has been known about their early diversification, character evolution, phylogeny and historical biogeography because of limited fossil materia...
Article
A newly discovered adult beetle †Lepiceratus ankylosaurus gen. & sp. nov. (mid-Cretaceous Myanmar amber) is the first extinct member of the suborder Myxophaga to reveal fine morphological structures, studied by synchrotron microtomography. A comprehensive phylogenetic analysis places it as a stem group in the extant relict family Lepiceridae. The f...
Article
Thorny lacewings (Rhachiberothidae) are currently distributed only within Africa, whereas they are prevalent in the fossil record of various Cretaceous ambers across the Northern Hemisphere, with a handful of the fossil records from some Eocene European ambers. Four rhachiberothid species in four extinct genera are known from the mid-Cretaceous amb...
Article
Protopselaphinae is a small rove beetle subfamily endemic to southeast Asia with only eight extant species placed into a single genus. Here we describe and illustrate the first fossil representative of Protopselaphinae, Protopselaphus thayerae sp. nov., from mid-Cretaceous Burmese amber (Albian-Cenomanian). The new species is distinguished from all...
Article
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An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Other than hard bones and shells, it is rare for soft tissues to fossilize, but occasionally they are well preserved in amber. Here, we focus on both modern and fossilized species of the land snail superfamily Cyclophoroidea. Phylogenetic relationships within the Cyclophoroidea were previously studied using extant species, but timing of divergence...
Article
The telephone-pole beetle family Micromalthidae has attracted the attention of entomologists and biologists because of its enigmatic morphology, systematic position, and complex life cycle. With only a single extant and four extinct species, the micromalthid beetles are a small but important lineage within the primitive suborder Archostemata. Fossi...
Article
A leptochromine ant-like stone beetle, †Rovnoleptochromus balticussp. nov., is described, based on an exquisitely preserved inclusion in Upper Eocene Baltic amber from Kaliningrad Region. The holotype specimen reveals novel characters, not observed (presumably because of poorer preservation) in the previously known †R. ableptonoides Jałoszyński & P...
Article
Triassic fossils are rare but crucial for understanding the early evolution of large insect clades including beetles (Coleoptera). Their phylogenetic assignment is problematic because of fragmentary preservation, yet crucial for the correct use of the information they provide. Here an analysis is presented of the phylogenetic position of Leehermani...
Article
Three fossil species classified in the family Monotomidae are described from mid-Cretaceous Burmese amber. They are attributed to the recent tribe Lenacini Crowson, known so far from a single extant endemic species, Lenax mirandus Sharp, from New Zealand. Lenax karenae Liu, Tihelka, McElrath and Yamamoto sp. nov., Cretolenax carinatus Liu, Tihelka,...
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The fossil record contains vital information about the evolution of lineages and is a source of data that cannot be reconciled other than by the direct observation of morphologies. Total-evidence phylogenetic reconstruction is being increasingly used to assess the position of extinct taxa by incorporating morphological data from extinct and extant...
Article
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Fossil records of the subfamily Omaliinae are fragmentary and most of them are less informative compression fossils. Baltic amber from the mid-Eocene of northern Europe is one of the most important sources of insect fossils, but only two reliably placed omaliines have been described. Here, we provide a general overview of this subfamily in Baltic a...
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Cenozoic climate cooling, particularly during the Eocene, has drastically shaped modern biological assemblages through a shift from an equable greenhouse to a polarized icehouse. Present-day Europe lies in a highly seasonal and temperate area that strongly embodies this modern icehouse climate. Baltic amber provides a Middle Eocene snapshot of the...
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The origin and early evolutionary history of polyphagan beetles have been largely based on evidence from the derived and diverse ‘core Polyphaga’, whereas little is known about the species-poor basal polyphagan lineages, which include Scirtoidea (Clambidae, Decliniidae, Eucinetidae, and Scirtidae) and Derodontidae. Here, we report two new species A...
Article
Osoriinae is a highly diverse, globally distributed subfamily of rove beetles (Staphylinidae), but only a single Mesozoic species, Mesallotrochus longiantennatus Cai & Huang, in mid‐Cretaceous Burmese amber is known (age c. 99 Ma). Leptochirini, which is primarily found in decaying wood in the tropics, is one of the four tribes of osoriine rove bee...
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Kujiberothateruyukiigen. et sp. n. , a remarkable new genus and species of Rhachiberothidae, is described from Upper Cretaceous amber from the Kuji area in northeastern Japan. This discovery represents the first record of this family both from Japan and from East Asia. This fossil taxon has the largest foreleg in the subfamily Paraberothinae found...
Article
Fossil records of piestine rove beetles are very limited, with only two definite species from Mesozoic Chinese compressions, a single taxon from mid-Eocene Baltic amber and a doubtful Oligocene compression fossil from France. Here, a remarkable new genus and species, Propiestus archaicus gen. et sp. nov., is described based on a well-preserved indi...
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An unusual and well-preserved fossil staphylinid is described and figured from a single specimen in Upper Cretaceous Burmese amber. Gollandia planata gen. et sp. n. is tentatively placed in the extant oxyteline tribe Coprophilini, although it lacks a few characteristic features of present-day members of the group, likely indicating it to be either...
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In order to classify and taxonomically describe the first two fossil Othiini (Coleoptera: Staphylinidae: Staphylininae) species from three well‐preserved specimens in Cretaceous Burmese amber, a phylogenetic analysis was conducted, combining extant and extinct taxa. A dataset of 76 morphological characters scored for 33 recent species across the su...
Article
Featherwing beetles, or Ptiliidae (Coleoptera), are characterized by their minute sized-body and peculiar hind wing structures, and include the smallest free-living insects. A half millimeter-long, unsexed adult featherwing beetle from Upper Cretaceous Burmese amber is here described as Kekveus jason gen. et sp. nov. Our observation recovered fine...
Article
Mastigitae is a supertribe of ant-like stone beetles (Scydmaeninae) that includes over 40% extinct genera, and whose evolutionary history is documented from the Upper Cretaceous through to today. Based on the results of phylogenetic analyses combining the most extensive taxon sampling to date, we reclassify Mastigitae into six monophyletic units: L...
Article
Coloninae is a tiny and distinctive subfamily of the highly diverse family Leiodidae (round fungus and small carrion beetles). Although only one leiodid fossil is known from the Mesozoic, its taxonomic position and classification are doubtful. We describe the first definitive Coloninae fossil, Colon burmiticum Yamamoto sp. nov., from Upper Cretaceo...
Article
A new genus and species of cimicomorphan bug, Aphrastomedes anthocoroides Yamada and Yamamoto, gen. and sp. nov., is described and illustrated based on two specimens preserved in Upper Cretaceous (Cenomanian) amber from the Hukawng Valley of northern Myanmar (Burma). This remarkable cimicomorphan species is tentatively assigned to the family Veloci...
Article
†Lepicerus mumia Jałoszyński & Yamamoto, sp. nov. is described based on a Cenomanian Myanmar amber inclusion. This is the third known and the best preserved fossil of ‘lepiceroid’ myxophagan beetles, making it possible to carry out a more detailed comparative study than previously published findings. Detailed analyses of diagnostic characters given...
Article
The rove beetle subfamily Aleocharinae is the largest subfamily of animals known in terms of species richness. Two small aleocharine tribes, Gymnusini and Deinopsini, are believed to be a monophyletic clade, sister to the rest of the Aleocharinae. Although the phylogenetic relationships of the extant lineages have been well investigated, the monoph...
Article
Fossil morphology is often used to infer the ecology of extinct species. In a recent report in Current Biology, Cai and colleagues [1] described an extinct rove beetle, Cretotrichopsenius burmiticus, from two specimens in mid-Cretaceous Burmese amber (∼99 million years old). Based on morphology and the taxonomic group to which the specimens belong,...
Article
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Preservations illustrating insect reproductive behaviors are much rarer in compression fossils than in amber. We discovered a copulating compression fossil of the sciarid flies from the Pleistocene Shiobara Group, Tochigi Prefecture, Japan, which is briefly described herein. The specimen represents one of the rare examples of a compression fossil s...