Ultrastructural Morphology and Descriptive Analysis of Cuticular Sensilla in Adult <i>Tomicus pilifer</i> (Coleoptera: Curculionidae).

ABSTRACT: Tomicus pilifer is a major pest that threatens Pinus koraiensis forests in the northeast region of China. In this study, we employed scanning electron microscopy (SEM) to observe the sensilla on the antennae, mouthparts, and legs of both male and female T. pilifer adults, analyzing the differences in sensillum types, external morphology, and quantities between sexes. The results revealed six types of sensilla on the antennae of both males and females, including sensilla trichoidea, sensilla zigzag, sensilla coeloconica, sensilla chaetica, Böhm bristles, and sensilla basiconica. Among these, sensilla basiconica was the most abundant, with four subtypes identified, and sensilla basiconica III was observed only on the male antennae, indicating sexual dimorphism in sensill

SUBMITTER: Wang L 

PROVIDER: S-EPMC12471193 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature