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Dr Michael Geiser

Dr Michael Geiser

Curator, Coleoptera

Department: Life Sciences
Division: LS Insects Division
Specialisms: Insects, Coleoptera
Team: Beulah Garner, Michael Geiser Specialisms: Cantharidae, Chrysomelidae, Coleoptera, Indochina, Lampyridae, Melyridae, Phengodidae, Prionoceridae, biogeography, collection management, faunistics, phylogeny, systematics, taxonomy
Contact: email
Phone: 0207942 5469

Summary

I'm one of the curators of Coleoptera (beetles), specifically looking after the Elateroidea (including "Cantharoidea") and Chrysomelidae collections, occasionally also dealing with other beetle groups. I'm responsible for loan requests and look after visitors for the above beetle taxa. I'm also an active taxonomist working on the former "Malacodermata" (Prionoceridae, Melyridae, Cantharidae and their relatives).

Qualifications

    Degrees

  • PhD in Environmental Sciences (Biogeography), University of Basel, Switzerland, 2009 - 2014
  • MSc in Ecology and Conservation Biology, University of Basel, Switzerland, 2007 - 2009
  • BSc in Biology, Major in Organismic Biology, University of Basel, Switzerland, 2004 - 2007

Fieldwork

Cote d'Ivoire
2016 - 2016.

Guyana
2014 - 2014.

Memberships

Member, Entomological Society of America, 2013 - 2015.

Member, Coleopterists Society, United States, 2013 - on going.

Member, Basel Entomological Society, Basel, Switzerland, 2011 - on going.

Member, 2011 - on going.

Member, Swiss Entomological Society, 2006 - on going.

Member, 2006 - on going.

Member, Vienna Coleopterists Society, Vienna, Austria, 2005 - on going.

Member, 2005 - on going.

Member, 2005 - on going.

Publications

Geiser M, Broad G (2022) First British record of Nacerdes carniolica (Gistel, 1834) (Oedemeridae) in Kent. The Coleopterist, 31 (2) : 55 - 58.

Geiser M, Broad G (2022) First British record of Nacerdes carniolica (Gistel, 1834) (Oedemeridae) in Kent. The Coleopterist, 31 (2) : 55 - 55.

Yang Y, Zhao W, Geiser M, Zhang W, Ren D, Bai M, Liu H (2022) Taxonomic revision of the mid-Cretaceous genus Sanaungulus Fanti, Damgaard et Ellenberger, 2018 (Coleoptera, Cantharidae) from northern Myanmar based on a morphology-based phylogeny. Cretaceous Research, 135 : 105217 - 105217. doi: 10.1016/j.cretres.2022.105217

Zhao W, Liu H, Geiser M, Yang Y (2022) Morphology and geometric morphometrics unveil a new genus of Cantharidae (Coleoptera, Elateroidea) from mid-Cretaceous Burmese amber, with a preliminary investigation on the phylogenetic position. Invertebrate Systematics, 36 (7) : 608 - 608. doi: 10.1071/is22020

Yang Y, Zhao W, Geiser M, Zhang W, Bai M, Liu H (2021) Review of the genus Burmomiles Fanti, Damgaard & Ellenberger from mid-Cretaceous Burmese amber (Coleoptera, Cantharidae). Cretaceous Research, 128 : 104961 - 104961. doi: 10.1016/j.cretres.2021.104961

Matsumoto K, Geiser M (2021) New Records for Acanthocnemus nigricans (Hope) (Coleoptera: Acanthocnemidae) in Africa. The Coleopterists Bulletin, 75 (1) : doi: 10.1649/0010-065x-75.1.156

Matsumoto K, Geiser M, Goyder D (2021) New Records for Candezea costatipennis Laboissière and Candezea flaveola (Gerstaecker) (Coleoptera: Chrysomelidae: Galerucinae) from Angola. The Coleopterists Bulletin, 75 (1) : doi: 10.1649/0010-065x-75.1.224

Biffi G, Geiser M (null) A revision of Peltariosilis Wittmer (Coleoptera: Cantharidae), a surprisingly diverse Amazonian radiation. Papéis Avulsos de Zoologia, doi: 10.11606/1807-0205/2020.60.special-issue.16

Skipp SK, Geiser M, McGill J, Nash C, Connop S (2019) Chrysomela saliceti Suffrian (Chrysomelidae) – thriving and potentially spreading in urban green areas in London. The Coleopterist, 28 (4) : 173 - 176.

Monks J, Ross S, Geiser M, De Prins J, Sharaf M, Wyatt N, Al Rijeibi S, Polaszek A (2019) A preliminary survey of the insect fauna of the Hajar Mountain Range, Oman. Journal of Natural History, 53 (15-16) : 939 - 963. doi: 10.1080/00222933.2019.1611969

Geiser M, Bezděk J (2019) On the Identity of Crioceris aulica Fabricius, 1781, a Member of Malachiidae Misplaced in Chrysomelidae (Coleoptera) and Consequent Taxonomical Changes in Atelechira Lacordaire, 1848. The Coleopterists Bulletin, 73 (1) : 179 - 179. doi: 10.1649/0010-065x-73.1.179

Geiser M (2018) Studies on Prionoceridae (Coleoptera, Cleroidea). VII. Three new species and new faunistic records in Prionocerus Perty, 1831.. Entomologische Blätter und Coleoptera, 114 (Wonderful Diversity. Contributions to the Taxonomy and Faunistics of Beetles. Papers celebrating the 80th birthday of Dr. Ivan Löbl) : 167 - 189.

Geiser M (2017) First record of the family Cantharidae on Socotra, with description of a new genus and two new species of the subfamily Silinae (Coleoptera: Elateroidea). Acta Entomologica Musei Nationalis Pragae, 57 (s1) : 93 - 99. doi: 10.1515/aemnp-2017-0110

Geiser M (2017) Rhagonycha bythinica (Coleoptera: Cantharidae) – New to Europe Rhagonycha bythinica (Coleoptera: Cantharidae) – nový nález pro Evropu. Klapalekiana, 53 : 275 - 277.

Mendelson JR, Barclay MVL, Geiser M, Streicher JW (2016) The Taxonomic Status ofBufo intermediusGünther, 1858: Forensic Entomology Confirms What Was Long Suspected from Morphology. Copeia, 104 (3) : 697 - 701. doi: 10.1643/ch-16-422

Geiser MF, Hagmann R, Nagel P, Loader SP (2016) A first broad-scale molecular phylogeny of Prionoceridae (Coleoptera: Cleroidea) provides insight into taxonomy, biogeography and life history evolution. ARTHROPOD SYSTEMATICS & PHYLOGENY, 74 (1) : 3 - 21.

Wiesner J, Geiser M (2016) Faunistic survey of the Tiger Beetles (Coleoptera, Carabidae, Cicindelinae) of Laos. Entomologica Basiliensia et Collectionis Frey, 35 : 61 - 117.

Walters JM, Barclay MVL, Geiser MF (2016) Xylotoles griseus (Fabricius, 1775) (Cerambycidae; Lamiinae), the New Zealand Fig Longhorn, breeding in Devon, new to Britain and Europe.. The Coleopterist, 25 (1) : 53 - 56.

Geiser M (2016) An update on the distribution of the pyrophilous beetle Acanthocnemus nigricans (Hope, 1845) (Coleoptera: Cleroidea: Acanthocnemidae), including new records from Laos. Entomologica Basiliensia et Collectionis Frey, 35 : 429 - 432.

Nagel P, Schmidlin L, Geiser M (2016) Names as legacy: Catalogue of taxa described by and for Michel Brancucci (1950-2012). Entomologica Basiliensia et Collectionis Frey, 35 : 11 - 59.

Sekerka L, Geiser M (2016) Sagrinae of Laos (Coleoptera: Chrysomelidae). Entomologica Basiliensia et Collectionis Frey, 35 : 443 - 453.

Geiser M, Fanti F (2015) On the nomenclature of Cantharis nigra (De Geer, 1774) and C. thoracica (A.G. Olivier, 1790) (Cantharidae) as used in Britain and Ireland. The Coleopterist, 24 (3) : 164 - 166.

Barclay MVL, Garner BH, Booth RG, Geiser MF, Taylor CE (2015) The Coleoptera Collections of the Natural History Museum, London. Presented at Entomological Society of America.

Germann C, Geiser M, Luka H, Sprecher E, Schatz I (2015) Käfer (Coleoptera) im Gebiet des Furkapasses, Kantone Uri und Wallis. Entomo Helvetica, 8 : 71 - 79.

Herger P, Germann C, Uhlig M, Vogel J, Geiser M, Kirejtshuk A (2015) Käfer aus Lichtfängen am Monte San Giorgio bei Serpiano, Kanton Tessin (Coleoptera). Entomo Helvetica, 8 : 89 - 96.

Plonski IS, Geiser MF (2015) Studies on the genus Intybia Pascoe (Coleoptera: Malachiidae). III. On Intybia rubrithorax (Pic) and related taxa. Zeitschrift der Arbeitsgemeinschaft Österreichischer Entomologen, 66 : 31 - 38.

Ivie MA, Geiser MF (2014) The Status ofTylocerus crassicornis(Dalman, 1823), Type Species ofTylocerusDalman, 1823 (Coleoptera: Cantharidae: Silinae). The Coleopterists Bulletin, 68 (1) : 111 - 114. doi: 10.1649/0010-065x-68.1.111

Ivie M, Geiser M (2014) Scientific Note: The Status of Tylocerus crassicornis (Dalman, 1823), type species of Tylocerus Dalman, 1823 (Coleoptera: Cantharidae: Silinae). The Coleopterists Bulletin, 68 (1) : 111 - 114.

Geiser M (2013) The soldier-beetle subfamily Silinae (Coleoptera: Cantharidae) in Laos: An annotated checklist and new faunistic data, In: Beetle diversity of Laos. Part I., Brancucci M, Nagel P, Kolibac J, Geiser M (Eds). Pro Entomologia Foundation & Naturhistorisches Museum Basel : Basel, Switzerland. 255 - 267.

Geiser M, Nagel P (2013) Coleopterology in Laos – an introduction to the nature of the country and its coleopterological exploration, In: Beetle diversity of Laos. Part I., Brancucci M, Nagel P, Kolibac J, Geiser M (Eds). Pro Entomologia Foundation & Naturhistorisches Museum Basel : 11 - 46.

Sprecher-Uebersax E, Geiser M, Hicklin M (2013) Die Käfersammlung Frey – ein Schatz für die Wissenschaft. Mitteilungen der Naturforschenden Gesellschaften beider Basel, 3 - 19.

Huber C, Geiser M (2012) Nebria (Patrobonebria) megalops sp. n. from Yunnan (China) (Coleoptera, Carabidae). Mitteilungen der Schweizerischen Entomologischen Gesellschaft, 85 : 159 - 165.

Yang Y-X, Geiser M, Yang X-K (2012) A little-known beetle family in China, Prionoceridae Lacordaire, 1857 (Coleoptera: Cleroidea). Entomotaxonomia (Yangling), 34 (2) : 378 - 390.

Geiser M (2011) Nomenclatural Note on Opisthapalochrus Evers, 1987 (Coleoptera, Cleroidea, Malachiidae). Japanese Journal of systematic Entomology, 17 (2) : 403 - 404.

Geiser M (2010) Studies on Prionoceridae (Coleoptera: Cleroidea). II. A revision of the genus Prionocerus Perty, 1831. Zootaxa, 2328 : 1 - 48.

Geiser M (2010) Case 3511: Prionocerus bicolor Redtenbacher, 1868 (Insecta, Coleoptera, CLEROIDEA, PRIONOCERIDAE): proposed precedence over P. pertii Laporte de Castelnau, 1836. Bulletin of Zoological Nomenclature, 67 (2) : 137 - 139.

Germann C, Geiser M (2010) Coeliastes lamii (Fabricius, 1792) - in der Schweiz ein bisher übersehener Rüsselkäfer? (Coleoptera, Curculionidae). Entomo Helvetica, 3 : 209 - 212.

Brancucci M, Geiser M (2009) A revision of the genus Lamellipalpus Maulik, 1921 (Coleoptera, Lampyridae). Zootaxa, 2080 : 1 - 20.

Geiser M (2009) Studies on Prionoceridae (Coleoptera, Cleroidea). III. Nomenclatural notes and a lectotype designation for Idgia species described by Maurice Pic. Entomologica Basiliensia et Collectionis Frey, 31 : 131 - 134.

Brancucci M, Geiser M (2007) A new species of Lamellipalpus Maulik, 1921 from Vietnam (Coleoptera, Lampyridae). Entomologica Basiliensia et Collectionis Frey, 29 : 41 - 45.

Geiser M (2007) Geiser, M. (2007). Studies on Prionoceridae (Coleoptera, Cleroidea). I. A new species of Prionocerus Perty, 1831 from Sumatra.. Entomologica Basiliensia et Collectionis Frey, 29 : 167 - 170.

Barclay M, Geiser M (null) A replacement name for Philonthus colius Hromádka, 2016 (Coleoptera: Staphylinidae). Studies and Reports, Taxonomical Series, 13 (1) : 61 - 61.

Biffi G, Geiser M (null) A revision of Discodon tricolor (Guérin-Méneville) and its mimics from the Atlantic forests of Brazil (Coleoptera: Cantharidae). European Journal of Taxonomy, 834 : doi: 10.5852/ejt.2022.834.1907

Introduction

Summary

I'm one of the curators of Coleoptera (beetles), specifically looking after the Elateroidea (including "Cantharoidea") and Chrysomelidae collections, occasionally also dealing with other beetle groups. I'm responsible for loan requests and look after visitors for the above beetle taxa. I'm also an active taxonomist working on the former "Malacodermata" (Prionoceridae, Melyridae, Cantharidae and their relatives).

Qualifications

    Degrees

  • PhD in Environmental Sciences (Biogeography), University of Basel, Switzerland, 2009 - 2014
  • MSc in Ecology and Conservation Biology, University of Basel, Switzerland, 2007 - 2009
  • BSc in Biology, Major in Organismic Biology, University of Basel, Switzerland, 2004 - 2007
Projects

Fieldwork

Cote d'Ivoire
2016 - 2016.

Guyana
2014 - 2014.

Professional activities

Memberships

Member, Entomological Society of America, 2013 - 2015.

Member, Coleopterists Society, United States, 2013 - on going.

Member, Basel Entomological Society, Basel, Switzerland, 2011 - on going.

Member, 2011 - on going.

Member, Swiss Entomological Society, 2006 - on going.

Member, 2006 - on going.

Member, Vienna Coleopterists Society, Vienna, Austria, 2005 - on going.

Member, 2005 - on going.

Member, 2005 - on going.

Publications

Publications

Geiser M, Broad G (2022) First British record of Nacerdes carniolica (Gistel, 1834) (Oedemeridae) in Kent. The Coleopterist, 31 (2) : 55 - 58.

Geiser M, Broad G (2022) First British record of Nacerdes carniolica (Gistel, 1834) (Oedemeridae) in Kent. The Coleopterist, 31 (2) : 55 - 55.

Yang Y, Zhao W, Geiser M, Zhang W, Ren D, Bai M, Liu H (2022) Taxonomic revision of the mid-Cretaceous genus Sanaungulus Fanti, Damgaard et Ellenberger, 2018 (Coleoptera, Cantharidae) from northern Myanmar based on a morphology-based phylogeny. Cretaceous Research, 135 : 105217 - 105217. doi: 10.1016/j.cretres.2022.105217

Zhao W, Liu H, Geiser M, Yang Y (2022) Morphology and geometric morphometrics unveil a new genus of Cantharidae (Coleoptera, Elateroidea) from mid-Cretaceous Burmese amber, with a preliminary investigation on the phylogenetic position. Invertebrate Systematics, 36 (7) : 608 - 608. doi: 10.1071/is22020

Yang Y, Zhao W, Geiser M, Zhang W, Bai M, Liu H (2021) Review of the genus Burmomiles Fanti, Damgaard & Ellenberger from mid-Cretaceous Burmese amber (Coleoptera, Cantharidae). Cretaceous Research, 128 : 104961 - 104961. doi: 10.1016/j.cretres.2021.104961

Matsumoto K, Geiser M (2021) New Records for Acanthocnemus nigricans (Hope) (Coleoptera: Acanthocnemidae) in Africa. The Coleopterists Bulletin, 75 (1) : doi: 10.1649/0010-065x-75.1.156

Matsumoto K, Geiser M, Goyder D (2021) New Records for Candezea costatipennis Laboissière and Candezea flaveola (Gerstaecker) (Coleoptera: Chrysomelidae: Galerucinae) from Angola. The Coleopterists Bulletin, 75 (1) : doi: 10.1649/0010-065x-75.1.224

Biffi G, Geiser M (null) A revision of Peltariosilis Wittmer (Coleoptera: Cantharidae), a surprisingly diverse Amazonian radiation. Papéis Avulsos de Zoologia, doi: 10.11606/1807-0205/2020.60.special-issue.16

Skipp SK, Geiser M, McGill J, Nash C, Connop S (2019) Chrysomela saliceti Suffrian (Chrysomelidae) – thriving and potentially spreading in urban green areas in London. The Coleopterist, 28 (4) : 173 - 176.

Monks J, Ross S, Geiser M, De Prins J, Sharaf M, Wyatt N, Al Rijeibi S, Polaszek A (2019) A preliminary survey of the insect fauna of the Hajar Mountain Range, Oman. Journal of Natural History, 53 (15-16) : 939 - 963. doi: 10.1080/00222933.2019.1611969

Geiser M, Bezděk J (2019) On the Identity of Crioceris aulica Fabricius, 1781, a Member of Malachiidae Misplaced in Chrysomelidae (Coleoptera) and Consequent Taxonomical Changes in Atelechira Lacordaire, 1848. The Coleopterists Bulletin, 73 (1) : 179 - 179. doi: 10.1649/0010-065x-73.1.179

Geiser M (2018) Studies on Prionoceridae (Coleoptera, Cleroidea). VII. Three new species and new faunistic records in Prionocerus Perty, 1831.. Entomologische Blätter und Coleoptera, 114 (Wonderful Diversity. Contributions to the Taxonomy and Faunistics of Beetles. Papers celebrating the 80th birthday of Dr. Ivan Löbl) : 167 - 189.

Geiser M (2017) First record of the family Cantharidae on Socotra, with description of a new genus and two new species of the subfamily Silinae (Coleoptera: Elateroidea). Acta Entomologica Musei Nationalis Pragae, 57 (s1) : 93 - 99. doi: 10.1515/aemnp-2017-0110

Geiser M (2017) Rhagonycha bythinica (Coleoptera: Cantharidae) – New to Europe Rhagonycha bythinica (Coleoptera: Cantharidae) – nový nález pro Evropu. Klapalekiana, 53 : 275 - 277.

Mendelson JR, Barclay MVL, Geiser M, Streicher JW (2016) The Taxonomic Status ofBufo intermediusGünther, 1858: Forensic Entomology Confirms What Was Long Suspected from Morphology. Copeia, 104 (3) : 697 - 701. doi: 10.1643/ch-16-422

Geiser MF, Hagmann R, Nagel P, Loader SP (2016) A first broad-scale molecular phylogeny of Prionoceridae (Coleoptera: Cleroidea) provides insight into taxonomy, biogeography and life history evolution. ARTHROPOD SYSTEMATICS & PHYLOGENY, 74 (1) : 3 - 21.

Wiesner J, Geiser M (2016) Faunistic survey of the Tiger Beetles (Coleoptera, Carabidae, Cicindelinae) of Laos. Entomologica Basiliensia et Collectionis Frey, 35 : 61 - 117.

Walters JM, Barclay MVL, Geiser MF (2016) Xylotoles griseus (Fabricius, 1775) (Cerambycidae; Lamiinae), the New Zealand Fig Longhorn, breeding in Devon, new to Britain and Europe.. The Coleopterist, 25 (1) : 53 - 56.

Geiser M (2016) An update on the distribution of the pyrophilous beetle Acanthocnemus nigricans (Hope, 1845) (Coleoptera: Cleroidea: Acanthocnemidae), including new records from Laos. Entomologica Basiliensia et Collectionis Frey, 35 : 429 - 432.

Nagel P, Schmidlin L, Geiser M (2016) Names as legacy: Catalogue of taxa described by and for Michel Brancucci (1950-2012). Entomologica Basiliensia et Collectionis Frey, 35 : 11 - 59.

Sekerka L, Geiser M (2016) Sagrinae of Laos (Coleoptera: Chrysomelidae). Entomologica Basiliensia et Collectionis Frey, 35 : 443 - 453.

Geiser M, Fanti F (2015) On the nomenclature of Cantharis nigra (De Geer, 1774) and C. thoracica (A.G. Olivier, 1790) (Cantharidae) as used in Britain and Ireland. The Coleopterist, 24 (3) : 164 - 166.

Barclay MVL, Garner BH, Booth RG, Geiser MF, Taylor CE (2015) The Coleoptera Collections of the Natural History Museum, London. Presented at Entomological Society of America.

Germann C, Geiser M, Luka H, Sprecher E, Schatz I (2015) Käfer (Coleoptera) im Gebiet des Furkapasses, Kantone Uri und Wallis. Entomo Helvetica, 8 : 71 - 79.

Herger P, Germann C, Uhlig M, Vogel J, Geiser M, Kirejtshuk A (2015) Käfer aus Lichtfängen am Monte San Giorgio bei Serpiano, Kanton Tessin (Coleoptera). Entomo Helvetica, 8 : 89 - 96.

Plonski IS, Geiser MF (2015) Studies on the genus Intybia Pascoe (Coleoptera: Malachiidae). III. On Intybia rubrithorax (Pic) and related taxa. Zeitschrift der Arbeitsgemeinschaft Österreichischer Entomologen, 66 : 31 - 38.

Ivie MA, Geiser MF (2014) The Status ofTylocerus crassicornis(Dalman, 1823), Type Species ofTylocerusDalman, 1823 (Coleoptera: Cantharidae: Silinae). The Coleopterists Bulletin, 68 (1) : 111 - 114. doi: 10.1649/0010-065x-68.1.111

Ivie M, Geiser M (2014) Scientific Note: The Status of Tylocerus crassicornis (Dalman, 1823), type species of Tylocerus Dalman, 1823 (Coleoptera: Cantharidae: Silinae). The Coleopterists Bulletin, 68 (1) : 111 - 114.

Geiser M (2013) The soldier-beetle subfamily Silinae (Coleoptera: Cantharidae) in Laos: An annotated checklist and new faunistic data, In: Beetle diversity of Laos. Part I., Brancucci M, Nagel P, Kolibac J, Geiser M (Eds). Pro Entomologia Foundation & Naturhistorisches Museum Basel : Basel, Switzerland. 255 - 267.

Geiser M, Nagel P (2013) Coleopterology in Laos – an introduction to the nature of the country and its coleopterological exploration, In: Beetle diversity of Laos. Part I., Brancucci M, Nagel P, Kolibac J, Geiser M (Eds). Pro Entomologia Foundation & Naturhistorisches Museum Basel : 11 - 46.

Sprecher-Uebersax E, Geiser M, Hicklin M (2013) Die Käfersammlung Frey – ein Schatz für die Wissenschaft. Mitteilungen der Naturforschenden Gesellschaften beider Basel, 3 - 19.

Huber C, Geiser M (2012) Nebria (Patrobonebria) megalops sp. n. from Yunnan (China) (Coleoptera, Carabidae). Mitteilungen der Schweizerischen Entomologischen Gesellschaft, 85 : 159 - 165.

Yang Y-X, Geiser M, Yang X-K (2012) A little-known beetle family in China, Prionoceridae Lacordaire, 1857 (Coleoptera: Cleroidea). Entomotaxonomia (Yangling), 34 (2) : 378 - 390.

Geiser M (2011) Nomenclatural Note on Opisthapalochrus Evers, 1987 (Coleoptera, Cleroidea, Malachiidae). Japanese Journal of systematic Entomology, 17 (2) : 403 - 404.

Geiser M (2010) Studies on Prionoceridae (Coleoptera: Cleroidea). II. A revision of the genus Prionocerus Perty, 1831. Zootaxa, 2328 : 1 - 48.

Geiser M (2010) Case 3511: Prionocerus bicolor Redtenbacher, 1868 (Insecta, Coleoptera, CLEROIDEA, PRIONOCERIDAE): proposed precedence over P. pertii Laporte de Castelnau, 1836. Bulletin of Zoological Nomenclature, 67 (2) : 137 - 139.

Germann C, Geiser M (2010) Coeliastes lamii (Fabricius, 1792) - in der Schweiz ein bisher übersehener Rüsselkäfer? (Coleoptera, Curculionidae). Entomo Helvetica, 3 : 209 - 212.

Brancucci M, Geiser M (2009) A revision of the genus Lamellipalpus Maulik, 1921 (Coleoptera, Lampyridae). Zootaxa, 2080 : 1 - 20.

Geiser M (2009) Studies on Prionoceridae (Coleoptera, Cleroidea). III. Nomenclatural notes and a lectotype designation for Idgia species described by Maurice Pic. Entomologica Basiliensia et Collectionis Frey, 31 : 131 - 134.

Brancucci M, Geiser M (2007) A new species of Lamellipalpus Maulik, 1921 from Vietnam (Coleoptera, Lampyridae). Entomologica Basiliensia et Collectionis Frey, 29 : 41 - 45.

Geiser M (2007) Geiser, M. (2007). Studies on Prionoceridae (Coleoptera, Cleroidea). I. A new species of Prionocerus Perty, 1831 from Sumatra.. Entomologica Basiliensia et Collectionis Frey, 29 : 167 - 170.

Barclay M, Geiser M (null) A replacement name for Philonthus colius Hromádka, 2016 (Coleoptera: Staphylinidae). Studies and Reports, Taxonomical Series, 13 (1) : 61 - 61.

Biffi G, Geiser M (null) A revision of Discodon tricolor (Guérin-Méneville) and its mimics from the Atlantic forests of Brazil (Coleoptera: Cantharidae). European Journal of Taxonomy, 834 : doi: 10.5852/ejt.2022.834.1907