Annotated list of Pachyrhynchini (Coleoptera, Curculionidae, Entiminae) in Davao City, Mindanao, Philippines

By

Cabras, Analyn
Medina, Milton Norman
Torrejos, Chrestine
Pajota, Efhrain Loidge
Pepito, Mark John
Ceballos, Roel
Susulan, Treaseur
Rukmane, Anita

Type

Article

Date of Publication

2022-7-22

Original Publication

Check list : journal of species lists and distribution

Volume

18

Series / Issue

Issue: 4

Pages

799--814

Subjects

Beetles , Conservation , diversity , endemic , jewel weevils

Contributed by

Pensoft Publishers

Language

English

Published by

[São Paulo, Brazil] Luís Felipe Toledo 2005-

Identifiers

DOI: https://doi.org/10.15560/18.4.799

 

Abstract

Pachyrhynchini is a group of flightless plant-feeding weevils known for their complex and iridescent body ornamentation. It has its center of diversity in the Philippines and this paper presents the first comprehensive record of Pachyrhynchini fauna in Davao City. Data gathering was done through a combination of belt transect, photo documentation, and opportunistic sampling techniques. Materials were collected from trees and shrubs in twelve selected green spaces in Davao City using handpicking and bush beating techniques between 2016 and 2019. A total of 1103 individuals consisting of 32 species and two genera-Pachyrhynchus Germar and Metapocyrtus Heller, were documented. Thirty (30) species (93.75%) are endemic to Mindanao, while fifteen (15) species (46.88%) are considered vulnerable based on Department of Environment and Natural Resources Administrative Order No. 2019-09. The high endemism and the presence of rare species associated with the remaining forest patches call for immediate conservation actions.