Metapocyrtus villalobosae, Patano Jr & Amoroso & Mohagan & Guiang & Yap, 2021

Patano Jr, Romeo R., Amoroso, Victor B., Mohagan, Alma B., Guiang, Maria Melanie M. & Yap, Sheryl A., 2021, Two new species of the genus Metapocyrtus Heller, 1912 (Coleoptera: Curculionidae: Entiminae), from Mindanao Island and an updated checklist of Metapocyrtus species in the Philippines, Raffles Bulletin of Zoology 69, pp. 282-303 : 284

Family Curculionidae Latreille, 1802

random sampling with the use of sweep nets, were done in the established transect. Female and male specimens of the two new species were collected through handpicking and sweep netting whenever encountered during diurnal (0700–1500 hours) and nocturnal (1700–2200 hours) periods. Specimens of the two new species were put in separate vials, filled with 95% ethyl-alcohol, for preservation. The specimens were then air-dried and mounted for photo documentation.

Specimens were examined and photographed under a stereomicroscope. A TG6 Olympus camera was used to photograph the specimens. Adobe Photoshop CS6 software (licensed) was used to create final images of the two species. An ocular micrometer and digital calipers were used to measure the specimens. The male terminalia of the two new species were extracted by removing abdominal segments III to V of the specimens, which were then cleaned in boiling 10% potassium hydroxide solution for 10 to 30 minutes. The specimens of the two new species examined in this study were deposited in Central Mindanao University, University Museum, Zoological Section, Curculionidae collection (CMUZS).

The standard methodology of measurements and description by Yoshitake (2012) and Schultze (1923, 1925) were employed. All measurements are shown in millimetres (mm). The following body measurements were taken: BL, body length (from the apical margin of pronotum to the apex of the elytra); EL, elytral length (from the level of the basal margins to the apex of the elytra); WE, maximum width across elytra; PL, pronotal length (from the base to apex along the midline); WP, maximum width across pronotum; RL, rostrum length; and WR, maximum width of the rostrum.