Wallacellus similis (Ferrari), comb. n.

Xyleborus similis Ferrari, 1867

(complete taxonomic history in Wood and Bright, 1992)

Specimens examined. Cocos Keelings Isl., (holotype, NHMW), New Guinea (holotype of X. novaeguineanus, syn. of X. similis, NHMW); Australia, Queensland (BMNH); Ecuador, Pichincha, Santo Domingo (2, Hulcr det., FMNH); Malaysia, Sabah, Danum Valley (11, Hulcr det., MSUC); New Guinea (10, Hulcr det., BBM.); New Guinea (1, Hulcr det., BMNH); New Guinea, Madang Prov. (778, Hulcr det., MSUC), Oro Prov. (6, Hulcr det., MSUC), West Sepik (8, Hulcr det., MSUC).

Comments. It is superficially similar to Xyleborus spp., but shares the following synapomorphies with Wallacellus piceus and W. striatulus: rounded protibiae with>8 denticles; prosternal posterocoxal process only slightly inflated; pronotum subquadrate anteriad; sutural interstriae 1 on declivity broadened, with a pair of prominent and few minor tubercles.