Filipinorhynchus and Pachyrhynchus, Schönherr, 1826

Cabras, Analyn A., Agbas, Daven Jayson D. & Obrial, Graden G., 2025, Filipinorhynchus Cabras gen. nov., with two new species (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini) from Davao de Oro, Mindanao Island, Philippines, Zootaxa 5642 (2), pp. 163-177 : 175

Key to Filipinorhynchus and Pachyrhynchus :

1 Head and rostrum discontinuous, rostrum separated from head by transverse groove, basal half with distinct median despression, base of rostrum contricted, narrower than interocular distance of forehead, weakly bulging on apical half; both surface of prothorax and elytra not smooth.............................................. Filipinorhynchus Cabras gen. nov.

- Head and rostrum continuous, without transverse groove, base of rostrum nearly equal to interocular distance of forehead, base mostly flattish except for some members, apical half mostly bulging or swollen; both surface of prothorax and elytra smooth............................................................................ Pachyrhynchus Germar, 1824

In addition, Filipinorhynchus can be identified by body matte, rough, and dull without elaborate scaly markings, not shiny; prothorax with minute punctures with short erect to suberect setae, elytra striate-punctate, narrowly elongate, roughly 2.5X longer than pronotum fully covered in homogenously arranged erect to suberect setae.