Ultrastructure of the vasa deferentia of Terrobittacus implicatus and Cerapanorpa nanwutaina (Insecta: Mecoptera)
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The fine structures of vasa deferentia and postvesicular vasa deferentia were investigated in the hangingfly Terrobittacus implicatus (Cai et al. 2006) and the scorpionfly Cerapanorpa nanwutaina (Chou 1981) using light and transmission electron microscopy, and schematic diagrams were drawn accordingly. The vasa deferentia of both species comprise muscular layers, a basal lamina, and a mono-layered epithelium, but the postvesicular vasa deferentia contain muscular layers, a basal lamina, a single-layered epithelium, a subcuticular cavity, and an inner cuticle respectively. The vas deferens releases secretions into the lumen directly, probably by means of merocrine production. On the contrary, the cells of the postvesicular vas deferens correspond to class I glandular cells, discharging secretions into the subcuticular cavity first, and then into the lumen through an inner cuticle. The epithelium in both structures of Bittacidae is well developed and contains more microvilli, organelles, and more types of secretions than in Panorpidae. In Panorpidae, the spine of the postvesicular vas deferens may serve as a barricade for the reflow of the sperm and to protect the extraordinarily long structure from being collapsed or injured.
KeywordsVas deferens Male reproductive system Morphology Bittacidae Panorpidae
We thank Lu Liu and Ying Miao for the assistance in specimen collection and Xiao-Jun Fan, Mi Huo, and Ke-Rang Huang for the assistance in transmission electron microscopy.
This work was funded by the National Natural Science Foundation of China (grant no. 31672341).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
This article does not contain any studies with animals and human participants performed by any of the authors.
- Araújo VA, Zama U, Neves CA, Dolder H, Lino-Neto J (2005) Ultrastructural, histological and histochemical characteristics of the epithelial wall of the seminal vesicle of mature Scaptotrigona xanthotricha Moure males (Hymenoptera, Apidae, Meliponini). Braz J Morphol Sci 22:193–201. http://host-article-assets.s3.amazonaws.com/jms/587cb45b7f8c9d0d058b461c/fulltext.pdf
- Byers GW, Thornhill R (1983) Biology of the Mecoptera. Annu Rev Entomol 28:203–228. https://doi.org/10.1146/annurev.en.28.010183.001223 CrossRefGoogle Scholar
- Cai L-J, Huang P-Y, Hua B-Z (2006) Two new Chinese Bittacus Latreille (Mecoptera: Bittacidae) from Michangshan Mountains. Entomotaxonomia 28:127–130.Google Scholar
- Chapman RF (2013) The insects: structure and function, 5th edn. Cambridge University Press, CambridgeGoogle Scholar
- Chou I, Ran R-B, Wang S-M (1981) Taxonomic study of the Chinese Mecoptera (I, II). Entomotaxonomia 3:1–22.Google Scholar
- Cooper KW (1972) A Southern California Boreus, B. notoperates n. sp. I. Comparative morphology and systematics (Mecoptera: Boreidae). Psyche 79:269–283. https://doi.org/10.1155/1972/56294Google Scholar
- Dallai R, Marchini D, Callaini G (1988) Microtubule and microfilament distribution during the secretory activity of an insect gland. J Cell Sci 91:563–570. http://jcs.biologists.org/content/91/4/563Google Scholar
- Dustin P (1985) Microtubules, 2nd edn. Springer-Verlag, New YorkGoogle Scholar
- Grell KG (1942) Der Genitalapparat von Panorpa communis L. Zool Jb Anat 67:513–588Google Scholar
- Karakaya G, Özyurt N, Candan S, Suludere Z (2012) Structure of the male reproductive sytem in Coreus marginatus (L.) (Hemiptera: Coreidae). Türk Entomol Derg 36:193–204. http://dergipark.gov.tr/entoted/issue/5695/76134Google Scholar
- Landim CC, Dallacqua RP (2005) Morphology and protein patterns of honey bee drone accessory glands. Genet Mol Res 4:473–481. https://www.geneticsmr.com/year2005/vol4-3/pdf/gmr0104.pdfGoogle Scholar
- Matsuda R (1976) Morphology and evolution of the insect abdomen: with special reference to developmental patterns and their bearings upon systematics. Pergamon Press, New YorkGoogle Scholar
- Miyaké T (1913) Studies on the Mecoptera of Japan. J Coll Agric Tokyo Imp 4:265–400Google Scholar
- Noirot C, Quennedey A (1974) Fine structure of insect epidermal glands. Annu Rev Entomol 19:61–80. https://doi.org/10.1146/annurev.en.19.010174.000425 CrossRefGoogle Scholar
- Paoli F, Dallai R, Cristofaro M, Arnone S, Francardi V, Roversi PF (2014) Morphology of the male reproductive system, sperm ultrastructure and γ-irradiation of the red palm weevil Rhynchophorus ferrugineus Oliv. (Coleoptera: Dryophthoridae). Tissue Cell 46:274–285. https://doi.org/10.1016/j.tice.2014.06.003 CrossRefGoogle Scholar
- Potter E (1938) The internal anatomy of the order Mecoptera. Trans R Entomol Soc Lond 87:467–501. https://doi.org/10.1111/j.1365-2311.1938.tb00726.x CrossRefGoogle Scholar
- Quennedey A (1998) Insect epidermal gland cells: ultrastructure and morphgenesis vol Insecta. In: Harrison FW, Locke M (eds) Microscopic anatomy of invertebrates, vol 11A. Wiley-Liss, New York, pp 177–207Google Scholar
- Snodgrass RE (1935) Principles of insect morphology. McGraw Hill, New YorkGoogle Scholar
- Tan J-L, Hua B-Z (2009) Terrobittacus, a new genus of the Chinese Bittacidae (Mecoptera) with descriptions of two new species. J Nat Hist 43:2937–2954. https://doi.org/10.1080/00222930903359628Google Scholar