Nelloptodes gretae is a species of beetle in the family Ptiliidae. It was described in October 2019 and named after the environmental activist Greta Thunberg. Its long antennae bear a passing resemblance to her braided pigtails.
The beetle is pale yellow and gold, and measures 0.79 millimetres long. It has no eyes or wings, and is distinguishable by a small pit found between where the eyes should go. Usually found in the leaf litter and soil, they feed on fungal hyphae and spores.
The newly described species was described from material originally collected in Kenya sometime between 1964 and 1965 by entomologist William C. Brock, who took samples of soil from around east Africa which were stored in the Museum's collections. This species is one of nine within the newly erected genus Nelloptodes from these samples.
- "Greta Thunberg: New beetle named after climate activist". BBC News. 25 October 2019.
- Darby, Michael (2019). "Studies of Ptiliidae (Coleoptera) in the spirit collection of the Natural History Museum, London, 6: New species and records collected by W.C. Block in Kenya and Uganda, 1964–1965". Entomologist's Monthly Magazine. 155 (4): 239-257. doi:10.31184/M00138908.1554.3999.
- "New species named after climate activist Greta Thunberg". Natural History Museum. 25 October 2019. Retrieved 26 October 2019.
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