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Acta Entomologica Musei Nationalis Pragae

Volume 63 - Number 2
published on: 10th September 2023
Volume 63 (2)
Bilton David T.Out of the Palaearctic: the Helophorus water beetles of the Afrotropical Region (Coleoptera: Helophoridae)Acta Entomologica Musei Nationalis Pragae 63(2): 249-264
Abstract: Helophorus Fabricius, 1775 (Coleoptera: Hydrophiloidea: Helophoridae) is an old and largely Holarctic genus of beetles, with most extant diversity concentrated in the Palae­arctic. As with a number of primarily northern temperate lineages, the genus has colonised the Afrotropical Region, with species described from the Ethiopian Highlands and southern Africa. Here, the Afrotropical Helophorus fauna is revised, based on a study of all primary types and additional material, including extensive recent collections from South Africa. The known Afrotropical fauna is shown to be comprised of six species, only three of which were previously described: H. aethiopicus Régimbart, 1907, from southern highland areas of Ethiopia, H. aethiops J. Balfour-Browne, 1954 known from summer and year-round rainfall areas of South Africa and Namibia and H. cooperi Orchymont, 1948, stat. nov., described as a subspecies of H. aethiopicus and still only known from the type locality in Ethiopia. To these, three new species are added: H. brumopluvialis sp. nov., widespread in winter rainfall areas of the Western and Northern Cape Provinces of South Africa, H. nyandaruaensis sp. nov. from mountains of the East African Rift in Kenya and H. simiensis sp. nov. from the Simien Mountains of northern Ethiopia. All species are (re)described in detail and illustrated with high-resolution photos. Known distributions are mapped and a key to species provided. It is suggested that the two South African species may have speciated allochronically, due to seasonal shifts in life cycle associated with the development of the winter rainfall regime in the Cape during the Plio-Pleistocene. Helophorus are hypothesised to have colonised the Afrotropics on at least two occasions from separate Palaearctic ancestors.Published online: 10th September 2023
Ban TeruakiA new species of the genus Stigmatonotum (Hemiptera: Heteroptera: Rhyparochromidae) from Japan, with notes on related species from the East Palaearctic and Oriental RegionsActa Entomologica Musei Nationalis Pragae 63(2): 265-278
Abstract: A new seed bug species, Stigmatonotum macronotum sp. nov., collected from southern Chiba prefecture, central Honshu, Japan is described. It is the seventh species in the genus Stigmatonotum Lindberg, 1927. Stigmatonotum geniculatum (Motschulsky, 1863) is recorded from South Korea for the first time. Illustrations of genital structures of the new species and a key to the species of Humilocoris Harrington, 1980 and Stigmatonotum from the Palaearctic and Oriental Regions are provided.Published online: 27th October 2023
Kasalo Niko, Buzzetti Filippo Maria, Stancher Gionata, Cambra Roberto A., Skejo JosipContribution to the knowledge of Batrachideini (Orthoptera: Tetrigidae): description of two new flightless genera, Naskreckiana and Procellator, and revision of the status of EotetrixActa Entomologica Musei Nationalis Pragae 63(2): 279-292
Abstract: Two new genera of pygmy grasshoppers belonging to the subfamily Batrachideinae (Orthoptera: Tetrigidae) are described from Central America, each including a single new flight- less species. Naskreckiana kosemeni Kasalo, Buzzetti & Skejo gen. & sp. nov. is described from Costa Rica, Procellator kai Kasalo, Skejo & Cambra gen. & sp. nov. is described from Panama. Facts suggesting that †Eotetrix Gorochov, 2012, stat. restit., is not a synonym of Tettigidea Scudder, 1862 are discussed. The dichotomous key to Batrachideini by Silva et al. (2021) is updated with the inclusion of these two new genera. Currently, the tribe Batrachideini includes 14 extant genera and 61 extant species. Se describen dos géneros nuevos de saltamontes pigmeos (Orthoptera: Tetrigidae: Batrachideini: Batrachideinae) de América Central. Cada género nuevo contiene una especie nueva sin alas. Naskreckiana kosemeni Kasalo, Buzzetti & Skejo gen. & sp. nov. es descrito de Costa Rica, mientras que Procellator kai Kasalo, Skejo & Cambra gen. & sp. nov. es descrita de Panamá. Discutimos y sugerimos que †Eotetrix Gorochov, 2012, stat. restit., no es un sinónimo de Tettigidea Scudder, 1862. Una clave dicotómica para la identificación de géneros de Batrachideini por Silva et al. (2021) es actualizada con la inclusión de dos géneros nuevos. En la actualidad, la tribu Batrachideini incluye 14 géneros y 61 especies no extintas.Published online: 27th October 2023
Löbl Ivan, Cosandey VivienScaphobaeocera setosa sp. nov., an unusual Scaphidiinae (Coleoptera: Staphylinidae) with elongate tarsal setae from ChinaActa Entomologica Musei Nationalis Pragae 63(2): 293-295
Abstract: A new species of Scaphobaeocera Csiki, 1909 from Yunnan, China, S. setosa sp. nov., is described. It is unique in having strongly enlarged male protarsomeres with long oblique setae, forming a fan-like structure. The new species may be also readily distinguished from its congeners by its large body size.Published online: 5th November 2023
Zhang Wen-Xuan, Yin Zi-WeiERRATUM: ZHANG W.-X. & YIN Z.-W. 2023: Feabatrus gen. nov., a conspicuous new genus of Batrisitae from Myanmar and China (Coleoptera: Staphylinidae: Pselaphinae). Acta Entomologica Musei Nationalis Pragae 63 (1): 165–175. Entomologica Musei Nationalis Pragae 63(2): 296-296
Published online: 5th November 2023
Yin Zi-Wei, Hu Zheng-KunTwo new sympatric species of Songius from Mount Fanjing, Southwest China (Coleoptera: Staphylinidae: Pselaphinae)Acta Entomologica Musei Nationalis Pragae 63(2): 297-304
Abstract: The ant-loving beetle genus Songius Yin & Li, 2010 (Coleoptera: Staphylinidae: Pselaphinae: Batrisini) is rarely collected due to a cryptic myrmecophilous lifestyle, and its diversity remains insufficiently explored. Here we describe two new sympatrically distributed species from Mount Fanjing, Guizhou Province, Southwest China. Songius brevisetus sp. nov. is characterized by the relatively parallel-sided body with a densely setose integument, and different forms of the spines/projections of the legs and the aedeagus. Songius hubenqii sp. nov. differs in the shiny, almost asetose body segments and antennomeres 1–6, the mesofemora lacking tubercles and bearing long bristles on the ventral margins, and a different form of the aedeagus. A re-examination of the types and additional material supported the conclusion that S. hlavaci Zhao, Yin & Li, 2010 is a widely distributed species in eastern, central and southwestern China, leading to the placement of S. pseudohlavaci Yin & Li 2015, syn. nov. from Hunan as its junior synonym; and the species is newly recorded from Fujian and Chong­qing. An updated key and a distribution map for the genus are provided.Published online: 5th November 2023
Minoshima Yusuke N., Fikáček Martin, Liu Hsing-CheLarval morphology of Crephelochares and Peltochares (Coleoptera: Hydrophilidae)Acta Entomologica Musei Nationalis Pragae 63(2): 305-322
Abstract: The larval morphology of Crephelochares Kuwert, 1890 and Peltochares Régimbart, 1907 is described in detail based on specimens of C. abnormalis (Sharp, 1890) and P. atropiceus (Régimbart, 1903) collected in Taiwan; the chaetotaxy of the head capsule and head appendages of both genera is described for the first time. Larvae were obtained by laboratory rearing and field collecting; field collected larvae were identified by morphological comparison with those reared in the laboratory. Larval morphology of C. abnormalis corresponds with that of C. nitescens (Fauvel, 1883) except for the serrate margin of the nasale in C. abnormalis. We confirm that Crephelochares does not construct the usual egg case, and report active behaviour of its larvae, possibly indicating they are not ambush predators. Larval morphology of P. atropiceus corresponds with that of P. foveicollis; on the other hand, we conclude that the larvae previously described as Peltochares from Madagascar belong to Tritonus Mulsant, 1844 of the tribe Laccobiini. The egg-carrying behaviour of Peltochares is confirmed. We briefly summarize the state of the knowledge of immature stages of the Acidocerinae, indicating that a special effort in discovering and describing immature stages from northern South America and Brazil is needed.Published online: 24th November 2023
Sugaya Kazuki, Kakizoe Showtaro, Ooka Sohei, Tamura Hisao, Sone ShinzaburoDiscovery of a troglomorphic trechine beetle from the Ryukyu Archipelago, Southwestern Japan (Coleoptera: Carabidae: Trechinae)Acta Entomologica Musei Nationalis Pragae 63(2): 323-340
Abstract: A new genus and new species of Trechina (Coleoptera: Carabidae: Trechinae: Trechini), Ryukyuaphaenops pulcherrimus gen. & sp. nov. is described from the Ryukyu Archipelago, Japan. This is the first troglomorphic Carabidae in the Ryukyus and probably the most cave-adapted beetle in Japan. Interestingly, our observations suggest that this new trechine beetle is not similar to any genera of Trechina distributed in Kyushu and Taiwan, which are geographically close to the Ryukyu Archipelago, but is more similar to several aphaenopsian genera distributed in the inland of China. The genetic diversity of the new species is discussed based on mitochondrial DNA (COI-5’, COI-3’, 16S).Published online: 11th December 2023
Pérez-Flores Oscar, Arriaga-Varela Emmanuel, Navarrete-Heredia José Luis, Santos-Silva AntonioDescription of one new genus and two new species of Apomecynini (Cerambycidae: Lamiinae) from MexicoActa Entomologica Musei Nationalis Pragae 63(2): 341-347
Abstract: The knowledge of the diversity of leaf litter cerambycid fauna is limited, particularly in the Neotropics, where several species likely remain unreported. Most of these small and apterous beetles commonly belong to the tribe Apomecynini (Cerambycidae: Lamiinae). Herein, one new genus and two new species of Apomecynini are described and illustrated from material collected in leaf litter and subcortical habitats in Mexico: Enochlisi tlaloque sp. nov., from Cofre de Perote mountain, Veracruz, and Folilectia muye gen. & sp. nov., from Xochicoatlán, Hidalgo. The new genus differs from related taxa in divided eyes, antennomere IV longer than scape, and elytra not vermiculated or tuberculated, elongate in the apical third. Enochlisi tlaloque differs from E. micri Santos-Silva 2022 mainly in size of antennae, pronotum coarsely punctate, and elytra weakly vermiculate, with distinctive pubescent color pattern.Published online: 11th December 2023
Holzinger Werner E., Löcker BirgitFirst record of the tribe Oecleini in Australia (Hemiptera: Auchenorrhyncha: Fulgoromorpha: Cixiidae) with the description of a new genus and speciesActa Entomologica Musei Nationalis Pragae 63(2): 349-361
Abstract: A new genus and species, Apollo maculiceps gen. & sp. nov., in the planthopper family Cixiidae is described from south Western Australia. It can be distinguished from all other Australian Cixiidae by the presence of a denticle on the distal part of the fore coxa, a character that is shared with some other Oecleini genera. Large numbers of Apollo maculiceps gen. & sp. nov. were observed feeding on a native Australian cycad Macrozamia riedlei (family Zamiaceae). This is the first record of the economically important tribe Oecleini from Australia. A revised key to the tribes of the Australian Cixiidae is presented.Published online: 28th December 2023
Murao Ryuki, Yeh Wen-Chi, Lu Sheng-ShanA review of Lasioglossum (Leuchalictus) in Taiwan (Hymenoptera: Apoidea: Halictidae)Acta Entomologica Musei Nationalis Pragae 63(2): 363-382
Abstract: The Taiwanese bee species of the subgenus Leuchalictus Warncke, 1975 of the genus Lasioglossum Curtis, 1833 are revised. Three species are recognised, Lasioglossum formosae (Strand, 1910), Lasioglossum subopacum subopacum (Smith, 1853), and one new species, L. subinoum sp. nov., which was formerly misidentified as L. inoum (Cameron, 1904). Lasioglossum formosae is redescribed based on the topotypic specimens. It is concluded that L. occidens (Smith, 1873) is not distributed in Taiwan. A key to the Taiwanese species is provided, and the distribution of all species is mapped.Published online: 28th December 2023
Ramos-Pastrana Yardany, Marques Dayse W. A., Rafael José AlbertinoChalarus (Diptera: Pipunculidae) of Colombia, with description of two new species and an updated key to males of the Neotropical speciesActa Entomologica Musei Nationalis Pragae 63(2): 383-395
Abstract: Chalarus Walker, 1834 (Diptera: Pipunculidae: Chalarinae) has a cosmopolitan distribution, with 11 known species in the Neotropical Region, but none recorded in Colombia. Two new species of Chalarus are described from Colombia, namely Chalarus boyacensis sp. nov. (type locality: Cabaña Chaina, Santuario de Fauna y Flora Iguaque) and C. chairensis sp. nov. (type locality: Vereda Tigrera Alta, Cartagena del Chaira). Chalarus absonus Rafael, 1990, C. delicatus Rafael, 1990 and C. connexus Rafael, 1988 are recorded in Colombia for the first time, with amended and comparative diagnoses. Photographs of five South American species, distribution map and a dichotomic key to males of all Neotropical species are included.Published online: 28th December 2023
Salini S., Kment Petr, Cassis Gerasimos Rehabilitation of Mormoschema (Hemiptera: Heteroptera: Pentatomidae): generic status restituted and tribal placement revisedActa Entomologica Musei Nationalis Pragae 63(2): 397-412
Abstract: Tolumnia immaculata Distant, 1900 (Hemiptera: Heteroptera: Pentatomoidea: Pentatomidae: Pentatominae) is redescribed based on the study of primary types and additional specimens from India and Sri Lanka. This species is found to not be congeneric with the rest of Tolumnia Stål, 1868, including the type species. This verifies the original opinion of Breddin (1909), which was subsequently rejected by Distant (1918) but without argumentation. As a result, the monotypic genus Mormoschema Breddin, 1909, stat. restit., is removed from synonymy with Tolumnia, and the combination Mormoschema immaculatum (Distant, 1900) is restituted. The male and female genitalia of Mormoschema immaculatum are described in detail. The tribal placement of Mormoschema is discussed; the genus is excluded from Cappaeini and transferred to Eysarcorini. Buddleja asiatica and Scrophularia sp. (Scrophulariaceae) are recorded as feeding plants for M. immaculatum.Published online: 28th December 2023
Ševčík Jan, Hippa Heikki, Burdíková Nikola, Sopuch Kryštof, Skuhravá Marcela, Bruun Hans H.Integrative taxonomy of Central European Planetella (Diptera: Cecidomyiidae) indicates high species diversity, intraspecific variation and low host specificityActa Entomologica Musei Nationalis Pragae 63(2): 413-450
Abstract: A first attempt is made to revise the European species of the gall midge genus Planetella Westwood, 1840 (Diptera: Cecidomyiidae), with a focus on the fauna of the Czech Republic, Slovakia and Denmark. A total of 19 species are recognized based on unique DNA sequences, of which 13 are described as new to science: Planetella adami Ševčík & Hippa sp. nov., P. aestivalis Ševčík & Hippa sp. nov., P. antennata Ševčík & Hippa sp. nov., P. atrobrunnea Ševčík & Hippa sp. nov., P. attilai Ševčík & Hippa sp. nov., P. csabai Ševčík & Hippa sp. nov., P. davidi Ševčík & Hippa sp. nov., P. galiciensis Ševčík & Hippa sp. nov., P. hlisnikovskyi Ševčík & Hippa sp. nov., P. muranica Ševčík & Hippa sp. nov., P. riparia Ševčík & Hippa sp. nov., P. submontana Ševčík & Hippa sp. nov., and P. thermophila Ševčík & Hippa sp. nov. Four previously described species are recognized in the collected material: Planetella arenariae (Rübsaamen, 1899b), P. fasciata (Meigen, 1818) sp. restit., P. gallarum (Rübsaamen, 1899a), and P. granifex (Kieffer, 1898). For each of these species, DNA sequences are provided, as well as detailed illustrations of the male terminalia and male flagellomeres. Four additional species are represented only with larva, female or incomplete specimens. The phylogeny of European Planetella is tentatively reconstructed based on the combined analysis of three gene markers (28S, 16S, COI), but without providing any new infrageneric classification. The phylogenetic placement of the genus Planetella within the subfamily Cecidomyiinae is reconstructed based on four gene markers (18S, 28S, 16S, COI). The monophyly of Planetella is well supported, as well as its placement in the supertribe Cecidomyiidi. The genera Acodiplosis Kieffer, 1895 and Putoniella Kieffer, 1896 appear as the closest relatives of Planetella. The delimitation of the tribe Hormomyiini is discussed.Published online: 30th December 2023
Batelka Jan, Rosová Kateřina, Prokop JakubDiversity and morphology of Eocene and Oligocene Mordellidae (Coleoptera)Acta Entomologica Musei Nationalis Pragae 63(2): 451-478
Abstract: Characteristics of the locomotor apparatus (excluding wings) and other diagnostic features of Mordellidae preserved in Eocene Baltic and Rovno amber are investigated. Main features of Eocene Mordellidae are compared with those of their extant relatives using mainly light microscopy and micro-CT scans. The entire record of Eocene and Oligocene fossils of this family is reviewed, revealing a great number of discrepancies in diagnoses of species of Eocene and Oligocene Mordellidae at the generic level, which makes a reliable discussion of their biogeography and relationship with extant species impossible. To overcome this situation, four new collective group names (i.e., without a type species designation) are established: Baltimorda nov., Baltistena nov., Rovnostena nov., and Petrimordella nov. Seven new species of Mordellistenini from Baltic amber are described, diagnosed and illustrated: Baltistena ultima sp. nov., B. aurata sp. nov., B. longistrigata sp. nov., B. hoffeinsorum sp. nov., B. concava sp. nov., B. brevispina sp. nov., and B. atronigra sp. nov. The number of Mordellistenini recorded from Baltic amber is doubled from seven to fourteen. The subgenus Palaeostena Kubisz, 2003, with the type species Falsomordellistena eocenica Kubisz, 2003, is elevated to a genus.Published online: 30th December 2023
Damaška Albert F., Skuhrovec Jiří, Šípek Petr (editors)Abstracts of the Immature Beetles Meeting 2023 October 5–6, Prague, Czech RepublicActa Entomologica Musei Nationalis Pragae 63(2): 479-483
Published online: 31st December 2023