Anatomy of the smallest coleoptera, featherwing beetles of the tribe nanosellini (Coleoptera, Ptiliidae), and limits of insect miniaturization
- A. A. Polilov
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The internal structure of Nanosella sp., Primorskella sp., and Porophila sp. was described from serial sections and total preparations using light and transmission electron microscopy. The most important structural features related to miniaturization are the absence of midgut muscles, abortion of two Malpighian tubes, a decrease in the number of abdominal spiracles, strong reduction of the tracheal system, the absence of the heart, reduction of the circulatory system and its substitution by the fat body, strong oligomerization and concentration of the nervous system, a decrease in the size and number of neurons, and reduction of the left testis and left ovary. The internal structure of featherwing beetles was analyzed for the first time using 3D computer models, which allowed us to demonstrate changes in the relative volume of organs accompanying the body diminution. The excretory and digestive systems change isometrically, while others change allometrically. The relative volume of the musculature decreases, and that of the nervous and reproductive systems increases. The skeleton mass also increases. The possible factors limiting further diminution in Ptiliidae (egg size, the volume of the reproductive and nervous systems, and the skeleton mass) are discussed.
- Beutel, R.G. and Haas, A., “Larval Head Morphology of Hydroscapha natans LeConte 1874 (Coleoptera, Myxophaga, Hydroscaphidae) with Special Reference to Miniaturization,” Zoomorphology 18, 103–116 (1998). CrossRef
- Beutel, R.G., Pohl, H., and Hunefeld, F., “Strepsipteran Brain and Effect of Miniaturization (Insecta),” Arthropod Structure Devel. 34, 301–313 (2005). CrossRef
- Crowson, R.A., The Biology of Coleoptera (Acad. Press, N.Y., 1981).
- De Coninck, E. and Coessens, R., “The Structure of Internal Genitalia of Acrotrichis intermedia (Gillm., 1845) (Col. Ptiliidae),” Deutsche Entomol. Zeitschr., N. F. 29(1–3), 51–55 (1982).
- De Marzo, L., “Osservationi anatomiche sui genitali interni maschili in alcuni ptilidi (Coleoptera),” Entomologica (Bari) 37, 107–115 (1992).
- Dybas, L.K. and Dybas, H.S., “Coadaptation and Taxonomic Differentiation of Sperm and Spermathecae in Featherwing Beetles,” Evolution 35(1), 168–174 (1981). CrossRef
- Dybas, L.K. and Dybas, H.S., “Ultrastructure of Mature Spermatozoa of a Minute Featherwing Beetle from Sri Lanka (Coleoptera, Ptiliidae: Bambara),” J. Morphol. 191, 63–76 (1987). CrossRef
- Gorodkov, K.B., “Oligomerization and Evolution of Morphological Systems. 2. Oligomerization and Reduction of Body Size,” Zool. Zh. 63(12), 1765–1778 (1984).
- Grebennikov, V.V. and Beutel, R.G., “Morphology of the Minute Larva of Ptinella tenella, with Special Reference to Effects of Miniaturization and the Systematic Position of Ptiliidae (Coleoptera: Staphylinoidea),” Arthropod Structure Devel. 31, 157–172 (2002). CrossRef
- Hall, W.E., “Generic Revision of the Tribe Nanosellini (Coleoptera: Ptiliidae: Ptiliinae),” Trans. Amer. Entomol. Soc. 125(1–2), 36–126 (1999).
- Hanken, J. and Wake, D.B., “Miniaturization of Body Size: Organismal Consequences and Evolutionary Significance,” Annu. Rev. Ecol. Syst. 24, 501–519 (1993). CrossRef
- Mandelstam, Yu.E., Neurons and Muscles of Insects (Nauka, Leningrad, 1983) [in Russian].
- Plotnikova, S.I., Structural Organization of the Central Nervous System in Insects (Nauka, Leningrad, 1979) [in Russian].
- Polilov, A.A., “Anatomical Limits of Insect Miniaturization by the Example of the Smallest Coleopterans,” Zeiss Segodnya, no. 25, 2 (2004a).
- Polilov, A.A., “Morphological Limits of Insect Miniaturization by the Example of the Smallest Coleopterans,” in The Young Scientist Herald. Part I. The Best Reports Made at the XI Int. Conf. of Students, Postgraduates, and Young Researchers (Gart, Moscow, 2004b), pp. 41–47 [in Russian].
- Polilov, A.A., “Anatomy of the Featherwing Beetles Acrotrichis montandoni and Ptilium myrmecophilum (Coleoptera, Ptiliidae),” Zool. Zh. 84(2), 181–189 (2005a) [Entomol. Review 85 (5), 467–475 (2005)].
- Polilov, A.A., “Anatomy of Featherwing Beetles and Miniaturization in Insects,” in Microscopic Studies. Collected Papers Dedicated to the 250th Anniversary of the Moscow State University (2005b), pp. 7–12 [in Russian].
- Rensch, B., “Histological Changes Correlated with Evolutionary Changes of Body-size,” Evolution 2, 218–230 (1948). CrossRef
- Schmidt-Nielsen, K., Scaling: Why is Animal Size So Important? (Cambridge Univ. Press, Cambridge, 1984; Mir, Moscow, 1987) [in Russian].
- Silvere, A.P. and Shtein-Margolina, V., Tetrapodili. Microanatomy, Problems of Evolution and Interrelationship with Pathogens of Plant Diseases (Valgus, Tallinn, 1976) [in Russian].
- Sorensson, M., “Morphological and Taxonomical Novelties in the World’s Smallest Beetles, and the First Old World Records of Nanosellini,” Syst. Ent. 22, 257–283 (1997). CrossRef
- Svidersky, V.L., The Principles of Insect Neurophysiology (Nauka, Leningrad, 1980) [in Russian].
- Wigglesworth, V.B., The Principles of Insect Physiology (Chapman and Hall, L., N.Y., 1953).
- Anatomy of the smallest coleoptera, featherwing beetles of the tribe nanosellini (Coleoptera, Ptiliidae), and limits of insect miniaturization
Volume 88, Issue 1 , pp 26-33
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- A. A. Polilov (1)
- Author Affiliations
- 1. Faculty of Biology, Moscow State University, Moscow, 119899, Russia