Stridulatory apparatus in the Italian species of the genus Laccobius erichson (Coleoptera : Hydrophilidae) |
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| Affiliation: | 1. Institute of Orthopaedics, Xijing Hospital, Fourth Military Medical University, Xi''an, China;2. Department of Orthopedics, Heping Hospital Attached to Changzhi Medical College, Changzhi, China;3. Angen Gene Medicine Technology, Beijing, China;4. Experimental Medicine Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD, USA;1. College of Nursing, Kent State University, Kent, OH;2. School of Nursing and Health Sciences, Malone University, Canton, OH;3. Chronic Pain Rehabilitation Program, Cleveland Clinic Foundation, Cleveland, OH |
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| Abstract: | The stridulatory apparatus in males of the Italian species of the genus Laccobius Erichson (Coleoptera : Hydrophilidae) was examined by means of scanning electron microscope. In Laccobius, there is an elytron-uropleural type stridulatory apparatus. The “pars stridens” is situated on the 3rd abdominal pleurite and has an eulamellated structure. The “plectrum” is located on the inner elytron face. Significant subgeneric differences were found mainly in the extent of the areas, which make up the pars stridens and in the type of pleural denticulations. Differences in the plectrum cusps are also indicated. |
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