8. Arixenia jacobsoni Burr, 1912 Original combination Arixenia jacobsoni Burr, 1912b: 76–79. Current combination Xeniaria jacobsoni (Burr, 1912) — Nakata & Maa, 1974: 319. Type material Syntype (1 male, in ethanol) INDONESIA • 1 ♂ (Fig. 29); “Systematisch und / biologisch hochinter- / essant. / cfr. Burr in Holländ. / Zeitschr. für Entomologie / 1919 oder 1911. // E. Jacobson ded. / 29.V.1912. // Arixenia / jacobsoni / Burr ♂ / det. Burr // E. Jacobson. / Babakan. (Ban- / joemas) / Java Mrt. 1911 / Goewa Lawa / (grot) // 29/63 // ZMH 76677 // [all following labels belong to the lost female syntype] Arixenia / jacobsoni / Burr ♀ / det. Burr // ♀ in der / Schausamm-/ lung // E. Jacobson. / Babakan. (Ban- / joemas) / Java Mrt. 1911 / Goewa Lawa / (grot)” Type locality Java, Banjoumas Residency, Gouwa Lawa cave near the seashore at Babakan [Indonesia]. Current status Valid species. Remarks Originally the ZMH housed a male and female specimen of Arixenia jacobsoni. The female specimen was taken from the collection to be displayed in the exhibition. During the bombing of the city in 1943 this particular specimen was lost in the fire (Wagner 1964). However the original labels survived as they were never removed from the glass that once held all type specimens of this species. Therefore, we included the transcription of those labels as well.

Published as part of Nguyen, Eileen, Matzke, Danilo, Federspiel, Miriam, Peters, Carolin & Husemann, Martin, 2025, An annotated type catalogue of earwigs (Dermaptera) in the Zoological Museum Hamburg (ZMH), pp. 494-522 in Zootaxa 5673 (4) on page 503, DOI: 10.11646/zootaxa.5673.4.2, http://zenodo.org/record/16982566