31/08/2026
Species of the month for September 2026 is...🥁🥁🥁🥁
Zosterius tsitsikamma (Tsitsikamma longhorn beetle)!
The Tsitsikamma longhorn beetle belongs to the family Cerambycidae (longhorn beetle family). The genus name, Zosterius, features a highly distinct appearance among its group. The species name, tsitsikamma, honours the ancient Tsitsikamma forests along South Africa’s southern coastline where this species is an endemic. This is where the beetle was first discovered and described by scientists as recently as 2015. It is an elusive beetle, incredibly small and a rare resident of the forest canopy. Males reach only 9.3mm in length.
As an exceptionally rare find, it was only formally described by science in 2015 by the entomologist Anders Bjørnstad. The biological type specimen was safely collected in the pristine coastal environment of Stormsriver. It has been bred from unbarked logs of white alder, candlewood and stinkwood. It is highly likely that this species also occurs in Hebron Private Nature Reserve.
Read the article here:https://www.researchgate.net/profile/Anders-Bjornstad-3/publication/316546486_Studies_in_Afrotropical_Cleomenini_Coleoptera_Cerambycidae_Cerambycinae_VII_Revision_of_the_genus_Zosterius_Thomson_1864_with_description_of_a_new_species/links/61d1889fb8305f7c4b19bd21/Studies-in-Afrotropical-Cleomenini-Coleoptera-Cerambycidae-Cerambycinae-VII-Revision-of-the-genus-Zosterius-Thomson-1864-with-description-of-a-new-species.pdf
Photo credit: Anders Bjørnstad