Pub Date : 2019-06-26DOI: 10.3897/AFRINVERTEBR.60.35556
B. Sinclair
The genus Stuckenbergomyia Smith is revised with the description of a new species from Namibia (S.namibiensissp. nov.) and an undescribed species based on females from Western Cape Province of South Africa. The genus is fully illustrated and its phylogenetic relationships within the Hybotidae are discussed with the proposal of a new subfamily, Stuckenbergomyiinaesubfam. nov.
{"title":"Revision of the southern African genus Stuckenbergomyia Smith, 1971 (Diptera, Empidoidea) and proposal of a new subfamily","authors":"B. Sinclair","doi":"10.3897/AFRINVERTEBR.60.35556","DOIUrl":"https://doi.org/10.3897/AFRINVERTEBR.60.35556","url":null,"abstract":"The genus Stuckenbergomyia Smith is revised with the description of a new species from Namibia (S.namibiensissp. nov.) and an undescribed species based on females from Western Cape Province of South Africa. The genus is fully illustrated and its phylogenetic relationships within the Hybotidae are discussed with the proposal of a new subfamily, Stuckenbergomyiinaesubfam. nov.","PeriodicalId":50843,"journal":{"name":"African Invertebrates","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47205252","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}
Pub Date : 2019-06-19DOI: 10.3897/AFRINVERTEBR.60.34359
G. M. Kioko, P. Jäger, E. Kioko, L. Ji, Shuqiang Li
Eleven species of the spider family Agelenidae Koch, 1837 are reviewed based on the type material and transferred from the genus Agelena Walckenaer, 1805 to MistariaLehtinen 1967. These species occur in various African countries as indicated and include: M.jaundea (Roewer, 1955), comb. nov. (♂, Cameroon), M.jumbo (Strand, 1913), comb. nov. (♂♀, Central & East Africa), M.kiboschensis (Lessert, 1915), comb. nov. (♂♀, Central & East Africa), M.keniana (Roewer, 1955), comb. nov. (♀, Kenya), M.lawrencei (Roewer, 1955), comb. nov. (♀, Zimbabwe), M.longimamillata (Roewer, 1955), comb. nov. (♀, Mozambique), M.moschiensis (Roewer, 1955), comb. nov. (♀, Tanzania), M.mossambica (Roewer, 1955), comb. nov. (♀, Mozambique), M.nyassana (Roewer, 1955), comb. nov. (♀, Malawi), M.teteana (Roewer, 1955), comb. nov. (♂, Mozambique) and M.zuluana (Roewer, 1955), comb. nov. (♀, South Africa).
{"title":"On the species of the genus Mistaria Lehtinen, 1967 studied by Roewer (1955) from Africa (Araneae, Agelenidae)","authors":"G. M. Kioko, P. Jäger, E. Kioko, L. Ji, Shuqiang Li","doi":"10.3897/AFRINVERTEBR.60.34359","DOIUrl":"https://doi.org/10.3897/AFRINVERTEBR.60.34359","url":null,"abstract":"Eleven species of the spider family Agelenidae Koch, 1837 are reviewed based on the type material and transferred from the genus Agelena Walckenaer, 1805 to MistariaLehtinen 1967. These species occur in various African countries as indicated and include: M.jaundea (Roewer, 1955), comb. nov. (♂, Cameroon), M.jumbo (Strand, 1913), comb. nov. (♂♀, Central & East Africa), M.kiboschensis (Lessert, 1915), comb. nov. (♂♀, Central & East Africa), M.keniana (Roewer, 1955), comb. nov. (♀, Kenya), M.lawrencei (Roewer, 1955), comb. nov. (♀, Zimbabwe), M.longimamillata (Roewer, 1955), comb. nov. (♀, Mozambique), M.moschiensis (Roewer, 1955), comb. nov. (♀, Tanzania), M.mossambica (Roewer, 1955), comb. nov. (♀, Mozambique), M.nyassana (Roewer, 1955), comb. nov. (♀, Malawi), M.teteana (Roewer, 1955), comb. nov. (♂, Mozambique) and M.zuluana (Roewer, 1955), comb. nov. (♀, South Africa).","PeriodicalId":50843,"journal":{"name":"African Invertebrates","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46275056","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}
Pub Date : 2019-06-02DOI: 10.3897/AFRINVERTEBR.60.32141
J. Midgley, I. Engelbrecht
During 2015 and 2016 several baboon spider specimens (Araneae: Theraphosidae) were collected in central Angola during surveys undertaken for the Okavango Wilderness Project. These collections represent range and habitat extensions for Pterinochilus Pocock, 1897, Ceratogyrus Pocock, 1897 and Phoneyusa Karsch, 1884. The new species Ceratogyrusattonitifersp. n. is described from female specimens and the distribution of genera mapped. Central and eastern Angola is severely under sampled for theraphosid spiders, with every species collected during the survey either being potentially new to science or representing a significant range extension for the genus.
{"title":"New collection records for Theraphosidae (Araneae, Mygalomorphae) in Angola, with the description of a remarkable new species of Ceratogyrus","authors":"J. Midgley, I. Engelbrecht","doi":"10.3897/AFRINVERTEBR.60.32141","DOIUrl":"https://doi.org/10.3897/AFRINVERTEBR.60.32141","url":null,"abstract":"During 2015 and 2016 several baboon spider specimens (Araneae: Theraphosidae) were collected in central Angola during surveys undertaken for the Okavango Wilderness Project. These collections represent range and habitat extensions for Pterinochilus Pocock, 1897, Ceratogyrus Pocock, 1897 and Phoneyusa Karsch, 1884. The new species Ceratogyrusattonitifersp. n. is described from female specimens and the distribution of genera mapped. Central and eastern Angola is severely under sampled for theraphosid spiders, with every species collected during the survey either being potentially new to science or representing a significant range extension for the genus.","PeriodicalId":50843,"journal":{"name":"African Invertebrates","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47229226","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}
Pub Date : 2019-05-17DOI: 10.3897/AFRINVERTEBR.60.34229
S. Zonstein, Y. Marusik
Based on the types deposited in the Museum für Naturkunde Berlin (Germany), the following African species of Palpimanus Dufour, 1820 are re-examined and redescribed in details: P.namaquensis Simon, 1910 (South Africa, Namibia), P.nubilus Simon, 1910 (Namibia), P.paroculus Simon, 1910 (South Africa, Namibia) and P.processiger Strand, 1913 (Rwanda). The distribution of the considered species is specified and the erroneously interpreted geographical data, previously presented in the World Spider Catalog (2019), are corrected.
{"title":"On the revisited types of four poorly known African species of Palpimanus (Araneae, Palpimanidae)","authors":"S. Zonstein, Y. Marusik","doi":"10.3897/AFRINVERTEBR.60.34229","DOIUrl":"https://doi.org/10.3897/AFRINVERTEBR.60.34229","url":null,"abstract":"Based on the types deposited in the Museum für Naturkunde Berlin (Germany), the following African species of Palpimanus Dufour, 1820 are re-examined and redescribed in details: P.namaquensis Simon, 1910 (South Africa, Namibia), P.nubilus Simon, 1910 (Namibia), P.paroculus Simon, 1910 (South Africa, Namibia) and P.processiger Strand, 1913 (Rwanda). The distribution of the considered species is specified and the erroneously interpreted geographical data, previously presented in the World Spider Catalog (2019), are corrected.","PeriodicalId":50843,"journal":{"name":"African Invertebrates","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48212621","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}
Pub Date : 2019-05-10DOI: 10.3897/AFRINVERTEBR.60.33075
J. Londt
The genus Empodiodes Oldroyd, 1972, a Southern African endemic, is revised. Six species are recognised, four previously described (E.greatheadi Oldroyd, 1972, E.melanoscopaeus Londt, 1992, E.namibiensis Londt, 2012, E.whittingtoni Londt, 1992) and two new species (E.pusillipessp. nov., E.torridussp. nov.). A key for their separation is provided and their distributions mapped and discussed.
{"title":"A revision of Empodiodes Oldroyd, 1972 with the descriptions of two new species from South Africa (Diptera, Asilidae, Stenopogoninae)","authors":"J. Londt","doi":"10.3897/AFRINVERTEBR.60.33075","DOIUrl":"https://doi.org/10.3897/AFRINVERTEBR.60.33075","url":null,"abstract":"The genus Empodiodes Oldroyd, 1972, a Southern African endemic, is revised. Six species are recognised, four previously described (E.greatheadi Oldroyd, 1972, E.melanoscopaeus Londt, 1992, E.namibiensis Londt, 2012, E.whittingtoni Londt, 1992) and two new species (E.pusillipessp. nov., E.torridussp. nov.). A key for their separation is provided and their distributions mapped and discussed.","PeriodicalId":50843,"journal":{"name":"African Invertebrates","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46326070","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}
Pub Date : 2019-04-12DOI: 10.3897/afrinvertebr.60.37752
W. Coetzer, C. Eardley
We analysed country-scale distribution records of solitary bees (i.e. excluding Apismellifera) in countries in the Afrotropical Region, excluding the southern Arabian Peninsula and Socotra. Although different country estimates of bee species numbers can be explained by differences in climate, vegetation or topography, we concluded that the observed differences are mainly due to differences in sampling effort or taxonomic research intensity in different countries. We characterised three eras of bee taxonomy. The highest rate of species description per annum occurred during the first half of the 20ᵗʰ Century, before generic revisions were prevalent, and when the focus was on consolidating knowledge and developing identification keys. We also researched the locations of type specimens, which included all primary types and syntypes. Most types are housed in western Europe. We describe the Catalogue of Afrotropical Bees (CAB), a biodiversity information system and related GBIF checklist that is the system’s standardised, published output. In the revised CAB, all Afrotropical bee genera have been given common names, many of which are new.
{"title":"Insights into 260 years of taxonomic research gained from the Catalogue of Afrotropical Bees","authors":"W. Coetzer, C. Eardley","doi":"10.3897/afrinvertebr.60.37752","DOIUrl":"https://doi.org/10.3897/afrinvertebr.60.37752","url":null,"abstract":"We analysed country-scale distribution records of solitary bees (i.e. excluding Apismellifera) in countries in the Afrotropical Region, excluding the southern Arabian Peninsula and Socotra. Although different country estimates of bee species numbers can be explained by differences in climate, vegetation or topography, we concluded that the observed differences are mainly due to differences in sampling effort or taxonomic research intensity in different countries. We characterised three eras of bee taxonomy. The highest rate of species description per annum occurred during the first half of the 20ᵗʰ Century, before generic revisions were prevalent, and when the focus was on consolidating knowledge and developing identification keys. We also researched the locations of type specimens, which included all primary types and syntypes. Most types are housed in western Europe. We describe the Catalogue of Afrotropical Bees (CAB), a biodiversity information system and related GBIF checklist that is the system’s standardised, published output. In the revised CAB, all Afrotropical bee genera have been given common names, many of which are new.","PeriodicalId":50843,"journal":{"name":"African Invertebrates","volume":"60 1","pages":"291-318"},"PeriodicalIF":0.3,"publicationDate":"2019-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70393231","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}
Pub Date : 2019-02-13DOI: 10.3897/AFRINVERTEBR.60.30943
J. Londt, Torsten Dikow
Southern AfricanChoeradesWalker, 1851 are reviewed. Six species are recognised (C.analogossp. n.described from South Africa: KwaZulu-Natal,C.bella(Loew, 1858),C.flavipes(Wiedemann, 1821),C.multipunctata(Oldroyd, 1974),C.nigrapex(Bigot, 1878),C.nigrescens(Ricardo, 1925)) and a key for their separation is provided. Distributional information demonstrates that species are found primarily in moderate to higher rainfall regions. The little that is known of their biology is discussed. Species are usually associated with indigenous forest habitats where larval development takes place in decomposing wood.
{"title":"A review of Southern African Choerades Walker, 1851 with the description of a new species (Diptera, Asilidae, Laphriinae)","authors":"J. Londt, Torsten Dikow","doi":"10.3897/AFRINVERTEBR.60.30943","DOIUrl":"https://doi.org/10.3897/AFRINVERTEBR.60.30943","url":null,"abstract":"Southern AfricanChoeradesWalker, 1851 are reviewed. Six species are recognised (C.analogossp. n.described from South Africa: KwaZulu-Natal,C.bella(Loew, 1858),C.flavipes(Wiedemann, 1821),C.multipunctata(Oldroyd, 1974),C.nigrapex(Bigot, 1878),C.nigrescens(Ricardo, 1925)) and a key for their separation is provided. Distributional information demonstrates that species are found primarily in moderate to higher rainfall regions. The little that is known of their biology is discussed. Species are usually associated with indigenous forest habitats where larval development takes place in decomposing wood.","PeriodicalId":50843,"journal":{"name":"African Invertebrates","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41657196","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}
Pub Date : 2019-02-11DOI: 10.3897/AFRINVERTEBR.60.31521
Andrea Aracil, C. Pérez‐Bañón, X. Mengual, S. Radenković, G. Ståhls, A. Vujić, S. Rojo
Pre-imaginal morphology of the flower fly species Graptomyzasignata (Walker) is described and figured in detail based on specimens collected on a decomposed Aloe-like plant in KwaZulu-Natal province, South Africa. Third-instar larva is described for the first time and the puparium morphology is re-described using both light (optical) and electron microscopy. The present work represents the second larval description for a species of the genus Graptomyza, after the description of the larva of G.alabeta Séguy. The immatures of these two Graptomyza species were examined and compared to the pre-imaginal stages of the other members of the tribe Volucellini, pointing out the possible diagnostic characters of the genus Graptomyza. Moreover, new DNA barcodes are provided for G.signata and deposited in the NCBI GenBank.
{"title":"New information about the pre-imaginal morphology of genus Graptomyza (Diptera, Syrphidae, Volucellini): description of third-instar larva and re-description of puparium of G. signata (Walker, 1860)","authors":"Andrea Aracil, C. Pérez‐Bañón, X. Mengual, S. Radenković, G. Ståhls, A. Vujić, S. Rojo","doi":"10.3897/AFRINVERTEBR.60.31521","DOIUrl":"https://doi.org/10.3897/AFRINVERTEBR.60.31521","url":null,"abstract":"Pre-imaginal morphology of the flower fly species Graptomyzasignata (Walker) is described and figured in detail based on specimens collected on a decomposed Aloe-like plant in KwaZulu-Natal province, South Africa. Third-instar larva is described for the first time and the puparium morphology is re-described using both light (optical) and electron microscopy. The present work represents the second larval description for a species of the genus Graptomyza, after the description of the larva of G.alabeta Séguy. The immatures of these two Graptomyza species were examined and compared to the pre-imaginal stages of the other members of the tribe Volucellini, pointing out the possible diagnostic characters of the genus Graptomyza. Moreover, new DNA barcodes are provided for G.signata and deposited in the NCBI GenBank.","PeriodicalId":50843,"journal":{"name":"African Invertebrates","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48488325","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}
Pub Date : 2018-11-30DOI: 10.3897/AFRINVERTEBR.59.30684
A. Markee, Torsten Dikow
The genus Microphontes Londt, 1994 (Diptera: Asilidae: Brachyrhopalinae) is revised. Currently, three species are known from Namibia and western South Africa, i.e. Microphontesmegoura Londt, 1994 from north-western South Africa, Microphontessafra Londt, 1994 from Namibia and Microphonteswhittingtoni Londt, 1994 from western South Africa. Four new species, Microphontesericfisherisp. n. from the Little Karoo of South Africa, Microphontesgaiophanessp. n. from the Namib desert of Namibia and Microphontesjasonlondtisp. n. and Microphonteskryphiossp. n. from western South Africa, are described. Distribution, occurrence in biodiversity hotspots sensu Conservation International and seasonal incidence are discussed. Descriptions/redescriptions, photographs and identification keys are provided and made openly accessible in data repositories to support future studies of the included taxa. An unusual flight pattern of male Microphontesgaiophanessp. n. is discussed. A unique morphological feature on tergite 8 of Microphontes females, termed postero-paramedian T8 pores, is described, illustrated and discussed.
{"title":"Taxonomic revision of the assassin-fly genus Microphontes Londt, 1994 (Insecta, Diptera, Asilidae)","authors":"A. Markee, Torsten Dikow","doi":"10.3897/AFRINVERTEBR.59.30684","DOIUrl":"https://doi.org/10.3897/AFRINVERTEBR.59.30684","url":null,"abstract":"The genus Microphontes Londt, 1994 (Diptera: Asilidae: Brachyrhopalinae) is revised. Currently, three species are known from Namibia and western South Africa, i.e. Microphontesmegoura Londt, 1994 from north-western South Africa, Microphontessafra Londt, 1994 from Namibia and Microphonteswhittingtoni Londt, 1994 from western South Africa. Four new species, Microphontesericfisherisp. n. from the Little Karoo of South Africa, Microphontesgaiophanessp. n. from the Namib desert of Namibia and Microphontesjasonlondtisp. n. and Microphonteskryphiossp. n. from western South Africa, are described. Distribution, occurrence in biodiversity hotspots sensu Conservation International and seasonal incidence are discussed. Descriptions/redescriptions, photographs and identification keys are provided and made openly accessible in data repositories to support future studies of the included taxa. An unusual flight pattern of male Microphontesgaiophanessp. n. is discussed. A unique morphological feature on tergite 8 of Microphontes females, termed postero-paramedian T8 pores, is described, illustrated and discussed.","PeriodicalId":50843,"journal":{"name":"African Invertebrates","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47674110","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}
Pub Date : 2018-11-01DOI: 10.3897/AFRINVERTEBR.59.14621
Emmanuel Arriaga-Varela, M. Seidel, M. Fikáček
A new genus of coprophagous beetle, Evanesternum gen. n. (Hydrophilidae: Sphaeridiinae: Megasternini), is described in order to accommodate Cercyon (Acycreon) pulsatus d’Orchymont, 1937 from the Republic of South Africa and the Democratic Republic of Congo. A detailed description is provided along with habitus photographs, line drawings and SEM micrographs of relevant diagnostic characters. The new genus possesses the tribal synapomorphies of Megasternini but bears several unique morphological characters which are discussed in detail. The morphology of the remaining three species classified in the subgenus Acycreon d’Orchymont, 1942 (i.e. C. punctiger Knisch, 1921, C. collarti d’Orchymont, 1942 and C. apiciflavus Hebauer, 2002), is illustrated in order to provide evidence that Acycreon is an assemblage of morphologically dissimilar and likely not related species. An identification key to the Megasternini genera and subgenera known from the Republic of South Africa is presented.
为了容纳来自南非共和国和刚果民主共和国的Cercyon (Acycreon) pulsatus d 'Orchymont, 1937，本文描述了一种新属，Evanesternum gen. n.(亲水科:球形甲虫科:Megasternini)。详细的描述提供了相关诊断特征的习性照片、线条图和扫描电镜显微照片。新属具有Megasternini的部落近亲，但具有几个独特的形态特征，并对其进行了详细讨论。本文对1942年被分类为Acycreon d’orchymont亚属的其余三个物种(即C. punctiger Knisch, 1921, C. collarti d’orchymont, 1942和C. apiciflavus Hebauer, 2002)的形态进行了说明，以证明Acycreon是一个形态不同且可能不相关的物种组合。一个鉴定钥匙的Megasternini属和亚属已知从南非共和国提出。
{"title":"A new genus of coprophagous water scavenger beetle from Africa (Coleoptera, Hydrophilidae, Sphaeridiinae, Megasternini) with a discussion on the Cercyon subgenus Acycreon","authors":"Emmanuel Arriaga-Varela, M. Seidel, M. Fikáček","doi":"10.3897/AFRINVERTEBR.59.14621","DOIUrl":"https://doi.org/10.3897/AFRINVERTEBR.59.14621","url":null,"abstract":"A new genus of coprophagous beetle, Evanesternum gen. n. (Hydrophilidae: Sphaeridiinae: Megasternini), is described in order to accommodate Cercyon (Acycreon) pulsatus d’Orchymont, 1937 from the Republic of South Africa and the Democratic Republic of Congo. A detailed description is provided along with habitus photographs, line drawings and SEM micrographs of relevant diagnostic characters. The new genus possesses the tribal synapomorphies of Megasternini but bears several unique morphological characters which are discussed in detail. The morphology of the remaining three species classified in the subgenus Acycreon d’Orchymont, 1942 (i.e. C. punctiger Knisch, 1921, C. collarti d’Orchymont, 1942 and C. apiciflavus Hebauer, 2002), is illustrated in order to provide evidence that Acycreon is an assemblage of morphologically dissimilar and likely not related species. An identification key to the Megasternini genera and subgenera known from the Republic of South Africa is presented.","PeriodicalId":50843,"journal":{"name":"African Invertebrates","volume":"59 1","pages":"1-23"},"PeriodicalIF":0.3,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42744529","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}
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