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 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.

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 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.

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

Three new species of genus Metapocyrtus Heller, 1912, subgenus Orthocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini) from Mindanao Island, Philippines are described: M. (O.) regalissp. nov., M. (O.) tbolisp. nov., and M. (O.) reaganisp. nov. Photographs of their habitus and male genitalia are presented.

Metapocyrtusdagtum sp. nov., a new flightless weevil from Davao de Oro, Mindanao Island, Philippines (Coleoptera: Curculionidae: Entiminae: Pachyrhynchini)

Background

The genus Metapocyrtus Heller, 1912 is the most speciose and taxonomically complex genus in the tribe Pachyrhynchini. It is known to be endemic in the Philippines, with most species having a very narrow range of distribution. There are already more than 230 species of Metapocyrtus documented in the Philippines.

New information

Metapocyrtusdagtum sp. nov., a new species of the genus Metapocyrtus Heller, 1912 from Davao de Oro, Mindanao Island, Philippines, is described with brief notes about its ecology. Its specific epithet is from the Cebuano word “dagtum” which means pitch black referring to the colour of the integument of the species.

Four new species of Metapocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini) from Mindanao Island, Philippines

Background

The genus Metapocyrtus Heller, 1912 is the most speciose and complex amongst the tribe Pachyrhynchini with seven subgenera and more than 200 described species. The genus is endemic to the Philippines and remains largely unknown particularly in the less explored areas or mountains.

New information

Four new species of Metapocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini), are described from Mindanao Island, Philippines. Brief bionomical notes and mimicry with their sympatric beetles and other insect counterparts are also reported.