During a short expedition in 2021 several individuals of Platycheirus Meigen, 1822 were collected, both as dry material and in alcohol. Among this material we found a single Platycheirus species of the manicatus subgroup and another species belonging to the peltatus subgroup. The molecular and morphological data suggest the presence of Platycheirus islandicus Ringdahl, 1930 as a non-migratory endemic species for Iceland and Platycheirus manicatus Meigen, 1822 as a migratory species with regular influx from mainland Europe. The DNA barcodes as well as morphological characters are given for both species. A discussion about colonisation, and related topics like the nunatak and tabula rasa hypotheses, and migration theory on the endemism in Iceland is given.
在 2021 年的一次短期考察中，我们采集到了几只 Platycheirus Meigen，1822 年的干样本和酒精样本。在这些材料中，我们发现了一个 Manicatus 亚群的 Platycheirus 种和另一个属于 peltatus 亚群的种。分子和形态学数据表明，Platycheirus islandicus Ringdahl, 1930 是冰岛的非迁徙性特有物种，而 Platycheirus manicatus Meigen, 1822 则是定期从欧洲大陆迁入的迁徙物种。文中给出了这两个物种的 DNA 条形码和形态特征。文中还讨论了冰岛特有物种的殖民化、相关主题，如 nunatak 和 tabula rasa 假说以及迁移理论。
{"title":"Iceland, a mere remote island or a hoverfly (Diptera, Syrphidae) hotspot for endemism? A case study of Platycheirus islandicus Ringdahl, 1930 and P. manicatus Meigen, 1822","authors":"Jeroen van Steenis, E. Ólafsson, X. Mengual","doi":"10.55710/1/zjda1070","DOIUrl":"https://doi.org/10.55710/1/zjda1070","url":null,"abstract":"During a short expedition in 2021 several individuals of Platycheirus Meigen, 1822 were collected, both as dry material and in alcohol. Among this material we found a single Platycheirus species of the manicatus subgroup and another species belonging to the peltatus subgroup. The molecular and morphological data suggest the presence of Platycheirus islandicus Ringdahl, 1930 as a non-migratory endemic species for Iceland and Platycheirus manicatus Meigen, 1822 as a migratory species with regular influx from mainland Europe. The DNA barcodes as well as morphological characters are given for both species. A discussion about colonisation, and related topics like the nunatak and tabula rasa hypotheses, and migration theory on the endemism in Iceland is given.","PeriodicalId":479654,"journal":{"name":"Journaal van Syrphidae","volume":"14 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138972545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We report Myathropa semenovi (Smirnov, 1925) for the first time from India. This species was previously known from Central Asia and adjacent parts of Siberia. Recently collected specimens from the Kashmir Himalayas of India represent the first reported occurrence of this flower fly genus from India. Images and diagnosis are provided to help with the identification of this species.
{"title":"First records of the genus Myathropa Rondani, 1845 (Diptera, Syrphidae) from India with new distributional and taxonomic notes for Myathropa semenovi (Smirnov, 1925)","authors":"Amir Maqbool, Shahid Akbar, Aijaz Wachkoo","doi":"10.55710/1.lljr4612","DOIUrl":"https://doi.org/10.55710/1.lljr4612","url":null,"abstract":"We report Myathropa semenovi (Smirnov, 1925) for the first time from India. This species was previously known from Central Asia and adjacent parts of Siberia. Recently collected specimens from the Kashmir Himalayas of India represent the first reported occurrence of this flower fly genus from India. Images and diagnosis are provided to help with the identification of this species.","PeriodicalId":479654,"journal":{"name":"Journaal van Syrphidae","volume":"239 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jeroen van Steenis, Gil Miranda, Tamara Tot, Ximo Mengual, Jeffrey Skevington
An updated morphological terminology for adult Syrphidae (Insecta, Diptera) is presented. The need for an update and extension of the terminology became evident while preparing species descriptions for the European Commission funded Taxo-Fly project on European Syrphidae. The scope of this paper however is worldwide. The manuscript describes the method used in finding as many relevant terms as possible and also discusses the use of the preferred terms, e.g., based on novel insights on the wing venation and division of some of the thoracic segments. The main part comprises numerous figures depicting different body parts with terminology indicated on each figure. A glossary of all terms used is given in alphabetical order. In total 17 photos and 207 drawings are presented, depicting almost 400 terms. A total of 14 new terms are introduced to more accurately describe the different body parts of adult Syrphidae. A short description for each term is given, together with additional information such as synonymous terms.
{"title":"Glossary of morphological terminology of adult Syrphidae (Diptera): an update and extension","authors":"Jeroen van Steenis, Gil Miranda, Tamara Tot, Ximo Mengual, Jeffrey Skevington","doi":"10.55710/1.aims1978","DOIUrl":"https://doi.org/10.55710/1.aims1978","url":null,"abstract":"An updated morphological terminology for adult Syrphidae (Insecta, Diptera) is presented. The need for an update and extension of the terminology became evident while preparing species descriptions for the European Commission funded Taxo-Fly project on European Syrphidae. The scope of this paper however is worldwide. The manuscript describes the method used in finding as many relevant terms as possible and also discusses the use of the preferred terms, e.g., based on novel insights on the wing venation and division of some of the thoracic segments. The main part comprises numerous figures depicting different body parts with terminology indicated on each figure. A glossary of all terms used is given in alphabetical order. In total 17 photos and 207 drawings are presented, depicting almost 400 terms. A total of 14 new terms are introduced to more accurately describe the different body parts of adult Syrphidae. A short description for each term is given, together with additional information such as synonymous terms.","PeriodicalId":479654,"journal":{"name":"Journaal van Syrphidae","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135830743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The bee-mimicking hoverfly species Criorhina pachymera shows pronounced geographical variation in abdominal colour pattern. Based on 218 records from 22 European countries, we describe six abdomen forms divided over two main groups. Group A in western, northern and central parts of Europe contains abdomen forms A1–A3 with slender pollinose bands on the third and fourth tergite. Group B in south-eastern Europe contains forms B1–B3 with broad pollinose bands. These groups are separated by the Alps and the Carpathians, such as the separation of the original distributions of the two main postglacial recolonization lineages of honey bees in Europe. As these honey bee groups differ by the width of the pollinose bands on the third to fifth tergite, Batesian mimicry can explain the group distribution of C. pachymera with slender or broad pollinose bands. The different forms of C. pachymera in both groups are categorised by the extent of orange colouration on the second and third tergite. The darkest form A1, has a widespread distribution in Europe. Intermediate bright forms A2 and A3 occur predominantly in a belt along the southern margin of the group A distribution and in Sweden. Dark form B1 and intermediate bright form B2 occur on the Balkan peninsula and in neighbouring regions. The brightest form B3, is found in Italy, Switzerland (Ticino) and Greece. There is an average increase in the extent of orange colouration on the second and third tergite with decreasing geographical latitude, making temperature a likely additional cause for the described abdominal colour variation.
{"title":"Geographical variation in abdominal colour pattern in Criorhina pachymera (Egger, 1858) (Diptera: Syrphidae)","authors":"Jan Bisschop, Maarten de Groot, Gaël Pétremand","doi":"10.55710/1.xvvs8818","DOIUrl":"https://doi.org/10.55710/1.xvvs8818","url":null,"abstract":"The bee-mimicking hoverfly species Criorhina pachymera shows pronounced geographical variation in abdominal colour pattern. Based on 218 records from 22 European countries, we describe six abdomen forms divided over two main groups. Group A in western, northern and central parts of Europe contains abdomen forms A1–A3 with slender pollinose bands on the third and fourth tergite. Group B in south-eastern Europe contains forms B1–B3 with broad pollinose bands. These groups are separated by the Alps and the Carpathians, such as the separation of the original distributions of the two main postglacial recolonization lineages of honey bees in Europe. As these honey bee groups differ by the width of the pollinose bands on the third to fifth tergite, Batesian mimicry can explain the group distribution of C. pachymera with slender or broad pollinose bands. The different forms of C. pachymera in both groups are categorised by the extent of orange colouration on the second and third tergite. The darkest form A1, has a widespread distribution in Europe. Intermediate bright forms A2 and A3 occur predominantly in a belt along the southern margin of the group A distribution and in Sweden. Dark form B1 and intermediate bright form B2 occur on the Balkan peninsula and in neighbouring regions. The brightest form B3, is found in Italy, Switzerland (Ticino) and Greece. There is an average increase in the extent of orange colouration on the second and third tergite with decreasing geographical latitude, making temperature a likely additional cause for the described abdominal colour variation.","PeriodicalId":479654,"journal":{"name":"Journaal van Syrphidae","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136091217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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