Three new species of Grouvellinus Champion, 1923 from Maliau Basin, Sabah, Borneo, discovered by citizen scientists during the first Taxon Expedition (Insecta, Coleoptera, Elmidae)

Hendrik Freitag; Clister V Pangantihon; Iva Njunjić

doi:10.3897/zookeys.754.24276

Three new species of Grouvellinus Champion, 1923 from Maliau Basin, Sabah, Borneo, discovered by citizen scientists during the first Taxon Expedition (Insecta, Coleoptera, Elmidae)

Zookeys. 2018 Apr 30:(754):1-21. doi: 10.3897/zookeys.754.24276. eCollection 2018.

Authors

Hendrik Freitag^{1

2}, Clister V Pangantihon^{1

2}, Iva Njunjić^{2

3}

Affiliations

¹ Ateneo de Manila University, Department of Biology, School of Science & Engineering, Loyola Heights, Quezon City 1101, Philippines.
² Taxon Expeditions, Rembrandtstraat 20, 2311 VW, Leiden, Netherlands.
³ Naturalis Biodiversity Center, Vondellaan 55, 2332 AA, Leiden, Netherlands.

Abstract

Further results are presented of the first field course at Maliau Basin, Malaysian Borneo organized by Taxon Expeditions, an organization which enables citizen scientists to be directly involved in taxonomic discoveries. Three new species of the aquatic beetle genus Grouvellinus Champion, 1923, namely G. leonardodicaprioisp. n., G. andrekuipersisp. n., and G. questsp. n. were collected jointly by the citizen scientists and taxonomists during the fieldwork in Maliau Basin. Material was mainly sampled from sandstone bottom rocks of blackwater streams at altitudes between 900 m and 1,000 m using fine-meshed hand-nets. The genus is widely distributed in the Oriental and Palearctic regions, but these are the first records from the island of Borneo.

Keywords: André Kuipers; Leonardo DiCaprio; Quest magazine; new species; riffle beetle; taxon expeditions; taxonomy.