Geosesarma larsi

{{Short description|Species of crab}}

{{Speciesbox

| image =

| genus = Geosesarma

| species = larsi

| authority = Ng & Grinang, 2018

}}

Geosesarma larsi is a species of small land-living highland crab found in western Sarawak, Borneo. Adults have a carapace width of 12–15 mm and are of a purplish-red colour, which distinguishes them from other Geosesarma species in Borneo. The species is threatened by the loss of their small habitat.{{cite journal|url=http://www.mapress.com/j/zt/article/view/zootaxa.4508.4.5|title=A new species of highland vampire crab (Crustacea: Brachyura: Sesarmidae: Geosesarma) from Serian, Sarawak|journal=Zootaxa|volume=4508|issue=4|pages=569–575|author=Peter K. L. Ng, & JONGKAR GRINANG|publisher=Zootaxa 4508 (4): 569–575|doi=10.11646/zootaxa.4508.4.5|pmid=30485965|year=2018|s2cid=54162442 }}{{cite web |title=HIGHLAND VAMPIRE CRAB, GEOSESARMA LARSI NG & GRINANG, 2018 – OF SOUTH SARAWAK / BORNEO |url=http://www.lars-fehlandt.de/2018/11/03/geosesarma-larsi/jd5a2366/ |website=Lars Fehlandt |publisher=Lars Fehlandt |access-date=17 November 2018}}

Geosesarma larsi is named after the German photographer and naturalist Lars Fehlandt, who discovered this species during an expedition in December 2016.