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.
{"title":"Rehabilitation of Mormoschema (Hemiptera: Heteroptera: Pentatomidae): generic status restituted and tribal placement revised","authors":"S. Salini, P. Kment, G. Cassis","doi":"10.37520/aemnp.2023.025","DOIUrl":"https://doi.org/10.37520/aemnp.2023.025","url":null,"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.","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139149999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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.
{"title":"A review of Lasioglossum (Leuchalictus) in Taiwan (Hymenoptera: Apoidea: Halictidae)","authors":"Ryuki Murao, WEN-CHI Yeh, Sheng-Shen Lu","doi":"10.37520/aemnp.2023.023","DOIUrl":"https://doi.org/10.37520/aemnp.2023.023","url":null,"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.","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139149505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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.
Chalarus Walker, 1834 (Diptera: Pipunculidae: Chalarinae) 分布于世界各地，在新热带地区有 11 个已知种，但在哥伦比亚没有记录。新种（模式产地：Cabaña Chaina, Santuario de Fauna y Flora Iguaque）和 C. chairensis sp.Chalarus absonus Rafael, 1990、C. delicatus Rafael, 1990 和 C. connexus Rafael, 1988 首次在哥伦比亚被记录，并进行了修正和比较诊断。其中包括五个南美洲物种的照片、分布图和所有新热带物种雄性的二分法检索表。
{"title":"Chalarus (Diptera: Pipunculidae) of Colombia, with description of two new species and an updated key to males of the Neotropical species","authors":"Y. Ramos‐Pastrana, D. W. Marques, J. A. Rafael","doi":"10.37520/aemnp.2023.024","DOIUrl":"https://doi.org/10.37520/aemnp.2023.024","url":null,"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.","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139148669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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).
{"title":"Discovery of a troglomorphic trechine beetle from the Ryukyu Archipelago, Southwestern Japan (Coleoptera: Carabidae: Trechinae)","authors":"Kazuki Sugaya, Showtaro Kakizoe, Sohei Ooka, Hisao Tamura, Shinzaburo Sone","doi":"10.37520/aemnp.2023.020","DOIUrl":"https://doi.org/10.37520/aemnp.2023.020","url":null,"abstract":"A new genus and new species of Trechina (Coleoptera: Carabidae: Trechinae: \u0000Trechini), Ryukyuaphaenops pulcherrimus gen. & sp. nov. is described from the Ryukyu \u0000Archipelago, 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).","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138978768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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.
{"title":"Larval morphology of Crephelochares and Peltochares (Coleoptera: Hydrophilidae)","authors":"Y. Minoshima, M. Fikáček, Hsing-Che Liu","doi":"10.37520/aemnp.2023.019","DOIUrl":"https://doi.org/10.37520/aemnp.2023.019","url":null,"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.","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139238796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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.
{"title":"Two new sympatric species of Songius from Mount Fanjing, Southwest China (Coleoptera: Staphylinidae: Pselaphinae)","authors":"Zi-Wei Yin, Zheng-Kun Hu","doi":"10.37520/aemnp.2023.018","DOIUrl":"https://doi.org/10.37520/aemnp.2023.018","url":null,"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.","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135724348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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.
{"title":"Scaphobaeocera setosa sp. nov., an unusual Scaphidiinae (Coleoptera: Staphylinidae) with elongate tarsal setae from China","authors":"Ivan Löbl, Vivien Cosandey","doi":"10.37520/aemnp.2023.017","DOIUrl":"https://doi.org/10.37520/aemnp.2023.017","url":null,"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.","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135724349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Niko Kasalo, Filippo Maria Buzzetti, Gionata Stancher, Roberto A. Cambra, Josip Skejo
Two new genera of pygmy grasshoppers belonging to the subfamily Batrachideinae (Orthoptera: Tetrigidae) are described from Central America, each including a single new flightless 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.
{"title":"Contribution to the knowledge of Batrachideini (Orthoptera: Tetrigidae): description of two new flightless genera, Naskreckiana and Procellator, and revision of the status of Eotetrix","authors":"Niko Kasalo, Filippo Maria Buzzetti, Gionata Stancher, Roberto A. Cambra, Josip Skejo","doi":"10.37520/aemnp.2023.016","DOIUrl":"https://doi.org/10.37520/aemnp.2023.016","url":null,"abstract":"Two new genera of pygmy grasshoppers belonging to the subfamily Batrachideinae (Orthoptera: Tetrigidae) are described from Central America, each including a single new flightless 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.","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136262654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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.
{"title":"A new species of the genus Stigmatonotum (Hemiptera: Heteroptera: Rhyparochromidae) from Japan, with notes on related species from the East Palaearctic and Oriental Regions","authors":"Teruaki Ban","doi":"10.37520/aemnp.2023.015","DOIUrl":"https://doi.org/10.37520/aemnp.2023.015","url":null,"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.","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136261874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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.
{"title":"Out of the Palaearctic: the Helophorus water beetles of the Afrotropical Region (Coleoptera: Helophoridae)","authors":"David T. Bilton","doi":"10.37520/aemnp.2023.014","DOIUrl":"https://doi.org/10.37520/aemnp.2023.014","url":null,"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.","PeriodicalId":50901,"journal":{"name":"Acta Entomologica Musei Nationalis Pragae","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136071757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：