Ptinella katyae sp. n.

(Figs 10 A–E)

Description

Habitus Fig. 10A, L. 0.64mm. Yellow, antennae and pubescence pale yellow. Eyes reduced to points, width across 0.22mm. Antennomeres III–XI L. 0.29mm. Mentum and prementum chaetotaxy as in Fig. 6I. Pronotum L. 0.19mm, W. 0.29mm, broad, with two broad depressions in the posterior half, lateral margins strongly sinuate before the acute hind angles (Fig. 10B). Elytra L. 0.35mm W. 0.30mm, truncate, shallowly foveolate, chaetotaxy and cells (Fig. 10E). Proventrum, mesocoxae adjacent. Mesoventrum (Fig. 10D), L. 0.12mm, reticulate, without pubescence. posterior margins rounded at lateral corners. Metaventrum (Fig. 10D), L. 0.13mm, distance between metacoxae 0.11mm. ♀, spermatheca (Fig. 10B). ♂, not known.

Remarks: Holotype and three paratypes without eyes and wings, one paratype with eyes and brachypterous.

Diagnosis: The small size and form of the spermatheca distinguish the species.

Etymology: Named after Katy Potts my colleague in the Coleoptera Section of the Natural History Museum, London.

Material examined

Holotype, ♀, UGANDA: Katabana, 14 miles N. Kampala, 0°29′N, 32°37′E, litter in papyrus swamp, leg. W. C. Block, B. M. 1978-472 (BMNH).

Paratypes, 2♀♀, same data as holotype, (BMNH); 1♀, UGANDA: Kakira Sugar Estate, 6 miles E of Jinja, 0°30′N, 33°15′E, viii. 1965, leg. W.C. Block B.M. 1978-472 (BMNH, mounted as a disarticulated slide) ; 1 ex., UGANDA: Mpanga Forest, 25 miles N. Kampala, 0°12′N, 32°17′E, ix. 1965, leg. W.C. Block, B.M. 1978-472 (BMNH, mounted as a disarticulated slide) .