The cigarette beetle, Lasioderma serricorne (Fabricius) (Coleoptera: Anobiidae), is an important stored-product insect pest. In the present study, the external morphologies and distribution of the sensilla on the antenna and mouthparts of L. serricorne were described following scanning electron microscopy with the aim of understanding the behavioral mechanisms of this insect pest. On the antennae, various sensilla types were identified: Böhm bristles, three basiconic sensillum subtypes, two chaetica sensillum subtypes, three styloconic sensillum subtypes, as well as trichodea, capitulum, and campaniform sensilla. Interestingly, campaniform sensilla and two subtypes of styloconic sensilla (St1 and St2) were reported for the first time on L. serricorne antennae. The mouthparts of L. serricorne carried six different sensory structures including chaetica, basiconic, styloconic, auricillic, and trichodea sensilla, as well as long macrotubercles. Two subtypes of chaetica sensilla were recorded on the labrum, mandibles, and maxillary and labial palpi. A basiconic sensillum subtype (BS3) was distributed on the galea and lacinia, while subtype BS2 was also found on the lacinia along with long fan-like macrotubercles, which are hypothesized to help clean the area of the preoral cavity directly below the base of the labrum. Auricillic sensilla were also found on the galea. The labial palpi showed three subtypes of basiconic sensilla (BS3, BS4, BS5), whereas the maxillary palpi bears BS4, and BS5. Styloconic sensilla were also found at the top of the maxillary and labial palpi. Blunt basiconic (BS6) and trichodea sensilla were found on a tongue-shaped structure (pharynx) situated entirely at the midline of the preoral cavity. These findings improve understanding of the sensory perception of an important insect pest and could help to develop suitable control methods.

香烟甲虫Lasioderma serricorne（Fabricius）（鞘翅目：Anobiidae）是一种重要的储藏产品害虫。在本研究中，通过扫描电子显微镜，目的是为了了解这种害虫的行为机理，通过扫描电子显微镜描述了丝线虫L.serricorne的触角和口部上的感官的外部形态和分布。在触角上，可以识别出各种类型的感官：伯姆猪鬃，三种基本性感官亚型，两种chaetica感官亚型，三种定性感官亚型以及毛线虫，头花和钟形感官。有趣的是，首次报道了在L. serricorne上出现了钟形弯曲的感官和两个子类型的styloconic感官（St1和St2）。触角。L. serricorne的口器携带六种不同的感觉结构，包括chaetica，basoniconic，styloconic，auricillic和trichodea sensilla，以及长巨结节。唇足，下颌骨，上颌和唇部palpi分别记录了两种chaetica sensilla亚型。碱性的sensillum亚型（BS3）分布在galea和角膜上皮，而BS2亚型还与长长的扇状巨结核一起被发现在lacinia上，被认为可帮助清洁口腔底部正下方的前腔区域。拉布拉姆。在galea上还发现了耳形感官。唇部palpi表现出三种基本类型的基础性感官（BS3，BS4，BS5），而上颌部palpi则有BS4和BS5。在上颌和阴唇的顶部也发现重音感官。在完全位于口腔前中线的舌形结构（咽）中发现钝性碱性（BS6）和毛滴虫感。这些发现提高了对重要害虫的感官知觉的理解，并有助于开发合适的控制方法。