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 Darby, Michael Entomologist’s Monthly Magazine 2019 2019-10-25 155 239 257 8Y6M3 Darby, 2019 Darby 2019 [513,738,168,194] Insecta Ptiliidae Nelloptodes Animalia Coleoptera 11 250 Arthropoda species gretae sp. nov.   ( Figs 8A–D)  Description Habitus Fig. 8A, L. 0.79mm. Dull yellow brown as a result of strong reticulation, antennae and pubescence pale yellow. Head foveolate between eyes. Eyes reduced to points, width across 0.28mm. Antennomeres III–XI L. 0.38mm. Mentum and prementum chaetotaxy as in Fig. 6I. Pronotum L. 0.24mm, W. 0.40mm( Fig. 8B). Elytra L. 0.41mm, W. 0.42mm, truncate, shallowly foveolate. Proventrum, mesocoxae adjacent. Mesoventrum ( Fig. 8D), L. 0.15mmposterior margin shallowly convex medially and meeting lateral margin at an obtuse angle. Metaventrum ( Fig. 8D), L. 0.11mm, distance between metacoxae 0.14mm. ♀, spermatheca ( Fig. 6D). ♂, not known.    Remarks: All specimens without eyes and wings.   Diagnosis: The form of the spermatheca and the presence of foveolae on the head between the eyes separate this species from the other  Nelloptodes.   Etymology: Named in honour of the Swedish schoolgirl Greta Thunberg, climate activist and promoter of Extinction Rebellion.   Material examined   Holotype, ♀, KENYA, Aberdares National Park, 64 miles W. Nairobi, 0°30′S, 36°40′E,  x.1965, leg. W.C. Block, BM 1978-472( BMNH).   Paratypes, 2♂♂, same data as holotype ( BMNH, one mounted verso). 2564253682 1965-10 BMNH W. Nairobi & W. C. Block Kenya -0.5 Aberdares National Park 1308 36.666668 11 250 BM 1978-472 1 holotype 2564253687 [201,912,771,793] 1965-10 BMNH W. Nairobi & W. C. Block Kenya -0.5 Aberdares National Park 1308 36.666668 11 250 2 2 paratype