Ectatoderus dubius Tan & Salvador, sp. nov. (Figs 37–39) Specimens examined. Holotype: PHILIPPINES • ♁; Mindanao, Misamis Oriental, Gingoog City, Barangay Lunotan, near Mt Sumagaya; N8.70132, E125.00980, 1197.0± 7.3 m.a.s.l.; 16 February 2023, 19h44; mossy forest, on a leaf near the ground; coll. M.K. Tan, J.A.G. Salvador, A.M. Sabang, A. Gono, D.C.M. Bahoy & K. Grumo; MIN.23.66 (PNM) (Fig. 37) Remarks. The generic status of this species is very peculiar and this species could potentially be placed under either Ornebius or Ectatoderus. The male holotype has the TI with a small round inner tympanum and the frontal rostrum about as wide as the scapes; all of which are characteristics of Ornebius and Ectatoderus. The pronotum is strongly produced backwards, leaving only the apex of the tegmen free, which is characteristics of Ectatoderus; but the male genitalia are more characteristics of an Ornebius species, particularly of species from the species group kanetataki (Matsummura, 1904). Moreover, Ectatoderus has not been recorded in the Philippines. However, based on the generic diagnosis of Ectatoderus (Ingrisch, 2006), we tentatively place this species under Ectatoderus. Future phylogenetic work may reveal that this species may belong to another genus (noting that it is likely that Ectatoderus is not monophyletic, see Ingrisch, 2006). Diagnosis. From the Ectatoderus from Southeast Asia, this new species is characterised by the epiphallus membranous with its lateral valves forming separate lobes; these lobes are weakly sclerotized, with their apices rounded and more sclerotized; the medial valve more strongly sclerotized, curved at the base forming a semi-circle, having its apex pointed. From Ornebius, this species is characterised by the pronotum very strongly produced posteriorly, covering almost entire FWs. The new species also shares similarities in the pronotum with Ornebius cucullatus (Bolívar, 1889) from Mayon Volcano (in Albay), in the pronotum extending more posteriorly and nearly surpassing the ...