The benefits of contributing to the citizen science platform iNaturalist as an identifier.

As the number of observations submitted to the citizen science platform iNaturalist continues to grow, it is increasingly important that these observations can be identified to the finest taxonomic level, maximizing their value for biodiversity research. Here, we explore the benefits of acting as an identifier on iNaturalist.

New species in the genera Eumacrocyrtus Schultze, 1923 and Enoplocyrtus Yoshitake, 2017 from Luzon Island, Philippines (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini).

We describe and illustrate two new species from two previously monotypic genera Eumacrocyrtus Schultze, 1923 and Enoplocyrtus Yoshitake, 2017 from Luzon Island, Philippines: Eumacrocyrtusrobertfoxisp. nov., and Enoplocyrtusangelalcalaisp. nov.Eumacrocyrtusrobertfoxisp. nov. serves as a new record for Luzon Island for Eumacrocyrtus which was only previously represented by E.canlaonensis Schultze, 1923 from Negros Island whereas Enoplocyrtusangelalcalaisp. nov. serves as an additional record of Enoplocyrtus in Mountain Province in Luzon Island. The discovery of these two new species from the Zoological Collections of the Philippine National Museum, collected in 1947 and 1985, respectively, highlights the value of natural history collections for the present and future generations of researchers.

Two new species of the genus Metapocyrtus Heller, 1912 from the islands of Homonhon and Mindanao, Philippines, with taxonomic notes (Coleoptera: Curculionidae, Entiminae, Pachyrynchini).

Two new species of the genus Metapocyrtus Heller, 1912 from the islands of Homonhon and Mindanao: Metapocyrtus (Sclerocyrtus) rolandmuelleri Cabras and Mainda sp. nov. and Metapocyrtus (Sclerocyrtus) dabaw Cabras and Mainda sp. nov. are described and illustrated in this paper. It is also proposed to transfer a species from the subgenus Artapocyrtus Heller, 1912 to Sclerocyrtus Heller, 1912: Metapocyrtus (Sclerocyrtus) latinasus Heller, 1925.

Two new species of the genus Glenea Newman, 1842 (Coleoptera: Cerambycidae: Lamiinae: Saperdini) from Mindanao and Luzon Islands Philippines.

We describe and illustrate two new species of Glenea Newman, 1842 from the Philippines: G. barsevskisi sp. nov. and G. vitali sp. nov. Both species belong to the subgenus Glenea sçnsu strictô. At present, the total number of Glenea species in the Philippines is 89 (79 species and 10 subspecies).

Two new species of the genus Metapocyrtus Heller 1912 subgenus Trachycyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini) from the Philippines.

Two new species of the genus Metapocyrtus subgenus Trachycyrtus, Metapocyrtus baltazarae sp. nov. Cabras & Bollino (Luzon) and M. siargaonon sp. nov. Bollino & Cabras (Mindanao) from the Philippines are described, illustrated and compared with related species. The new species epithets are derived in honor of Dr. Clare Baltazar as Metapocyrtus (Trachycyrtus) baltazarae sp.nov., and Metapocyrtus (Trachycyrtus) siargaonon sp.nov. after the indigenous inhabitants of Siargao Island.

Catalog of the genus Cylindrepomus Blanchard (Coleoptera, Cerambycidae, Dorcaschematini) in the Philippines, with description of a new species from northern Mindanao.

A catalog of the genus Cylindrepomus Blanchard, 1853 in the Philippines, along with the description of a new species from northern Mindanao, is presented. Notes on the ecology, threats, and conservation of the new species are also provided.

Two new species of Metapocyrtus (Orthocyrtus) Heller, 1912 (Coleoptera, Curculionidae, Entiminae) from southern Mindanao, Philippines, with ecological notes.

Two new species of the genus MetapocyrtusHeller, 1912,subgenusOrthocyrtus Heller, 1912 are described and illustrated from southern Mindanao, Philippines: M. (O.) melibengoysp. nov. and M. (O.) flomloksp. nov. Another two species were transferred from the subgenus Artapocyrtus Heller, 1912 to Orthocyrtus, namely, M. (O.) willietorresi Cabras & Medina, 2018 and M. (O.) villalobosaePatano et al., 2021. Ecological notes are provided.

Two new species of the genus Metapocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini), subgenus Orthocyrtus Heller, 1912, from Mindanao Island, Philippines.

Two new species of Metapocyrtus Heller, 1912, subgenus Orthocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini) are described and illustrated from Mindanao Island, Philippines. The species are Metapocyrtus (Orthocyrtus) davaoensissp. nov. and Metapocyrtus (Orthocyrtus) hirakuisp. nov. from Davao City and Bukidnon, respectively. Brief bionomical notes and phenotypic characters compared to their sympatric Entiminae counterparts are also reported. The discovery of M. (O.) davaoensissp. nov. in Davao City confirms how understudied Coleoptera are in Mindanao and underlines the potential for the discovery of new species even in highly urbanized areas.

Metapocyrtuskitangladensis sp. n., a new Pachyrhynchuscumingii GR Waterhouse, 1841 mimic from Mindanao Island, Philippines.

A description of a new species from the genus Metapocyrtus Heller, 1912 (Coleoptera: Curculionidae: Pachyrhynchini) from Mt Kitanglad Range Natural Park, an ASEAN Heritage Site in northern Mindanao is presented and illustrated. The recent discovery is also the first mimic record of Pachyrhynchuscumingii GR Waterhouse, 1841 which are both found in the same locality. A Coptorhynchus sp. showing similar elytral patterns was also documented to be part of the mimicry complex. The new species differs from the other two species in having a distinct transverse groove between forehead and rostrum and the antennal scape reaching beyond the hind margin of the eye.