New species of the genus Orthorhynchoides Legalov, 2007 (Coleoptera: Belidae) from the Papuan Region

Four new species of the subgenus Guineorhinotia Legalov, 2007 of the genus Orthorhynchoides Legalov, 2007 of Belinae (Belidae) are described from Papua New Guinea and Indonesian Raja Ampat Archipelago. Orthorhynchoides (Guineorhinotia) rosseliensis sp. n. from Rossel Island (Louisiade Archipelago) differs from O. (G.) telnovi Legalov, 2023 in the coarsely punctate pronotum, the elytra with coarse punctation and six spots of pale setae. Orthorhynchoides (G.) titovi sp. n. from Morobe Province differs from O. (G.) wallacei (Pascoe, 1874) in the elytra with greenish lustre and large punctation and the 6-7 spots of pale setae, the mesmetepimeron pale setose. Orthorhynchoides (G.) limbourgi sp. n. from Madang Province differs from O. (G.) misoolensis sp. n. in elytra with violet lustre, without the spots of pale setae and the wider protibiae; from O. (G.) corallimerus (Heller, 1914) in the mesmetepimeron covered with pale setae and the elytron not pale spotted. Orthorhynchoides (G.) misoolensis sp. n. from Misool Is. (Raja Ampat Archipelago) differs from O. (G.) limbourgi sp. n. in the elytron with bluish lustre and with 4-6 spots of pale setae, and the narrower protibiae. A key to the species of the subgenus Guineorhinotia is presented. A checklist of species of the subgenus Guineorhinotia from the Papuan Region and a distribution map for New Guinea are given.