False-click beetles from Baltic Amber (Coleoptera, Eucnemidae)

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Is Microrhagus lindbergi (Palm) (Coleoptera, Eucnemidae) a valid species?

Dirrhagus lindbergi Palm, 1958 is regarded to be a junior subjective synonym of Microrhagus lepidus Rosenhauer 1847. The type series of D. lindbergi consisted of two species, the holotype male being conspecific with Microrhagus lepidus, the two paratype females with Microrhagus pygmaeus (Fabricius)

Helorus arturi sp. nov. (Hymenoptera, Proctotrupoidea, Heloridae) from Baltic Amber

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New fossil false click-beetles from the Americas (Coleoptera: Eucnemidae)

One new genus and three new false click-beetle species (Coleoptera: Eucnemidae) are described from American fossil resins: Neusiokia new genus, type species Neusiokia appalachiensis new species (North Carolina resin), Thambus woodruffi new species (Dominican resin) and Asiocnemis colombicus new species (Colombian resin). Seventy-two fossil species are included in the family Eucnemidae presently. Half of them, 36, are based on Baltic amber materials (Muona 1993a; Muona 2021), 22 are from Myanmar amber deposits (Li et al. 2020; Muona 2020; Otto 2019) and 10 are mineral fossils, nine of these from China (Chang et al. 2016; Muona et al. 2020; Li et al. 2021) and one from Australia (Oberprieler et al. 2016). The remaining four valid fossil eucnemid species have been described from the Americas, one from Dominican amber (Poinar 2012) and three from the Florissant beds (Wickham 1916). The purpose of the present work is to describe three new American fossil species from different types of resins.Peer reviewe

New fossil false click-beetles from the Americas (Coleoptera: Eucnemidae)

One new genus and three new false click-beetle species (Coleoptera: Eucnemidae) are described from American fossil resins: Neusiokia new genus, type species Neusiokia appalachiensis new species (North Carolina resin), Thambus woodruffi new species (Dominican resin) and Asiocnemis colombicus new species (Colombian resin). Seventy-two fossil species are included in the family Eucnemidae presently. Half of them, 36, are based on Baltic amber materials (Muona 1993a; Muona 2021), 22 are from Myanmar amber deposits (Li et al. 2020; Muona 2020; Otto 2019) and 10 are mineral fossils, nine of these from China (Chang et al. 2016; Muona et al. 2020; Li et al. 2021) and one from Australia (Oberprieler et al. 2016). The remaining four valid fossil eucnemid species have been described from the Americas, one from Dominican amber (Poinar 2012) and three from the Florissant beds (Wickham 1916). The purpose of the present work is to describe three new American fossil species from different types of resins

A revision of the genus Gastraulacus Guérin-M+eneville, 1843 (Coleoptera, Eucnemidae: Eucnemini)

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A review of the genus Feaia Fleutiaux, 1896 (Coleoptera, Eucnemidae, Mesogenini)

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Corticaria andreasi nomen novum (Coleoptera, Latridiidae)

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Throscidae (Coleoptera) relationships, with descriptions of new fossil genera and species

Two new Throscidae genera from Baltic amber are described: Tyrannosthroscus n..gen. (type species Tyrannothroscus rex n.sp.) and Pseudothroscus n. gen. (type species Pseudothroscus balticus n. sp.). Four species are described from Baltic amber: Tyrannothroscus rex n. sp., Pseudothroscus balticus n. sp., Potergus superbus n. sp. and Trixagus parvulus n. sp. Pactopus burmensis n. sp. is described from Burmese amber. A phylogenetic analysis of the known throscid genera is performed. Aulonothroscus Horn and Trixagus Kugelann are shown to be sister-groups, the sister-group of this Glade is the genus Pactopus Horn and the sister group of these three genera is the genus Potergus Bonvouloir. The oldest previously known throscids were species belonging to the genera Rhomboaspis Kirejtshuk & Kovalev and Potergosoma Kirejtshuk & Kovalev, both from Lebanese Amber, 125-135 Mya. The present analysis shows that the extinct Baltic amber genera Jaira Muona and Pseudothroscus belong to clades at least as old as the Lebanese fossils. The Burmese amber fossil Pactopus burmensis, 99 Mya, is considerably older than any of the previously known species belonging to the four extant genera: Pactopus,Potergus, Aulonothroscus or Trixagus. At least three throscid lineages are now known to have gone extinct. Both the Pactopus and Potergus lineages are more than 99 milion years old, whereas the Aulonothroscus and Trixagus lineages extend at least to the Baltic amber, 50 million years ago. The presence of Jaira in Baltic amber shows that that lineage persisted at least 80 million years before going to extinction.Peer reviewe

Eucnemidae from Burmese Amber

Eight new genera and twenty new species of Eucnemidae are described from Cretaceous Myanmar amber: Cupressicharis n. gen. (type-species Cupressicharis elongatus n. sp.), Cylus n. gen. (type species Cylus carinifer n. sp.), Falsothambus n. gen. (type species Falsothambus burmensis n. sp.). Fiegelia n. gen. (type species Fiegelia antennata n. sp.), Paleoeucnemis n. gen. (type species Paleoeucnemis minutus n. sp.), Protomicrorhagus n. gen. (type species Protomicrorhagus antennatus n. sp.), Protovitellius n. gen. (type species Protovitellius deceptus n. sp,) and Pseudomyall n. gen. (type species Pseudomyall elongatulus n. sp). Eleven further species are described: Coenomana brevicornis n. sp., Euryptychus acutangulus n. sp., Euryptychus burmensis n. sp, Euryptychus elegantulus n. sp., Euryptychus mysticus n. sp, Epiphanis burmensis n. sp., Falsothambus gracilicornis n. sp., Fiegelia tarsalis n. sp., Jenibuntor pusillus n. sp., Myall burmensis n. sp., Protomicrorhagus brevis n. sp, Sieglindea antiqua n. sp. Coenomana clavata Otto is transferred from tribe Jenibuntorini to tribe Dirhagini. Muonabuntor grandinotalis Li , Tihelka & Cai is transferred from tribe Jenibuntorini to tribe Euryptychini.Peer reviewe