Abstract
Characters of 25 abdominal structures were analyzed in the fleas of 96 genera representing over 90% of the world fauna. It was shown that different flea taxa could be described based on 16 universal and 12 specific characters, whose 108 states reflect the entire known diversity of the flea abdominal morphology. Of them, 16 characters with 39 states are formulated based on universal terms. Five universal characters with 13 states describe the proportions of various structures, and also the proportions and shapes of their sclerites; 17 specific characters with 69 states describe the structure of the skeletal elements and the patterns of their junctions. Judging by the number of characters (14) and their states (69), the most evolutionarily flexible structures in fleas are the inner sclerites and anchoring structures of the aedeagus, sternite IX in males, and also the spermatheca and tergite I in females. The character states reflecting the possible phylogenetic closeness of taxa comprise 39%, while 61% of the abdominal character states are homoplasies.
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References
Goncharov, A.I., “On the Functions of Modified Segments and Some Parts of the Aedeagus Used in Flea Taxonomy,” Trudy Armyanskoi Protivochumnoi Stantsii, No. 3, 437–458 (1964).
Goncharov, A.I., “Functional and Morphological Traits of Modified Segments in Fleas of the Genus Ctenophthalmus,” in Rodents and Their Ectoparasites: Collected Papers of Antiplague Institutions (Saratov, 1967), pp. 429–438 [in Russian].
Goncharov, A.I., “On the Functional and Morphological Traits of Modified Segments in Fleas of the Genus Frontopsylla (Siphonaptera, Leptopsyllidae),” Zoologicheskii Zhurnal 48 (11), 1743–1746 (1969).
Günter, K.K., “Funklionell-anatomische Untersuchung des mannlichen Kopulationsapparates der Flöhe unter besonderer Berücksichtigung seiner postembryonalen Entwicklung (Siphonaplera),” Deutsche Entomologische Zeitschrift. Neue Folge 8 (3/4), 8–349 (1961).
Hopkins, G.H.E. and Rothschild, M., An Illustrated Catalogue of the Rothschild Collection of Fleas (Siphonaptera) in the British Museum, Vol. 5 (Cambridge Univ. Press, London, 1971).
Kessel, E.L., “The Embryology of Fleas,” Smithsonian Miscellaneous Collections 98 (3), 1–78 (1939).
Matsuda, R., Morphology and Evolution of the Insect Abdomen (Pergamon Press, Oxford, 1976).
Medvedev, S.G., “Structure of the Aedeagus of Fleas of the Family Ischnopsyllidae (Siphonaptera),” Entomologicheskoe Obozrenie 63 (2), 236–249 (1984).
Medvedev, S.G., “Structure of the Aedeagus of Fleas (Siphonaptera). I,” Entomologicheskoe Obozrenie 71 (3), 510–522 (1992).
Medvedev, S.G., “Structure of the Aedeagus of Fleas (Siphonaptera). II,” Entomologicheskoe Obozrenie 72 (3), 519–536 (1993a).
Medvedev, S.G., “Structure of the Modified Abdominal Segments of Fleas (Siphonaptera),” Entomologicheskoe Obozrenie 72 (4), 747–763 (1993b).
Medvedev, S.G., “Morphological Basis of Classification of Fleas (Siphonaptera),” Entomologicheskoe Obozrenie 73 (1), 22–43 (1994).
Medvedev, S.G., “Classification of Fleas (Order Siphonaptera) and Its Theoretical Foundations,” Entomologicheskoe Obozrenie 77 (4), 916–934 (1998) [Entomological Review 78 (9), 1080–1093 (1998)].
Medvedev, S.G., “Morphological Adaptations of Fleas (Siphonaptera) to Parasitism: IV,” Entomologicheskoe Obozrenie 84 (2), 276–292 (2005a) [Entomological Review 85 (4), 386–399 (2005)].
Medvedev, S.G., “On Systemic Analysis of the Evolution of the Order of Fleas (Siphonaptera),” in N.A. Kholodkovsky Memorial Lectures, Issue 57 (2) (2005b), pp. 1–170 [in Russia
Medvedev, S.G., “Morphological Diversity of the Skeletal Structures of Fleas (Siphonaptera). Part 1: the General Characteristic and Features of the Head,” Entomologicheskoe Obozrenie 95 (3), 559–588 (2015a) [Entomological Review 95 (7), 852–873 (2015)].
Medvedev, S.G., “Morphological Diversity of the Skeletal Structures of Fleas (Siphonaptera). Part 3: The General Characteristics and Features of Thoracic Setation,” Parazitologiya 49 (6), 453–464 (2015b) [Entomological Review 96 (1), 51–58 (2016)].
Medvedev, S.G., “Morphological Diversity of the Skeletal Structures of Fleas (Siphonaptera). Part 2: The General Characteristic and Features of the Thorax,” Entomologicheskoe Obozrenie 96 (1), 34–63 (2016) [Entomological Review 96 (1), 28–50 (2016)].
Snodgrass, R.E., “The Skeletal Anatomy of Fleas (Siphonaptera),” Smithsonian Miscellaneous Collections 104 (18), 1–89.
Wagner, J., “Zur Morphologie der letzten Abdominalsegmente der Flöhe,” Zoologische Jahrbücher (Anatomie) 56 (1), 55–120 (1932).
Wagner, J., “Nachtrag zur Kenntnis der letzten Abdominalsegmente der Flöhe,” Zoologische Jahrbücher (Anatomie) 57 (3), 365–374 (1933).
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Original Russian Text © S.G. Medvedev, 2016, published in Entomologicheskoe Obozrenie, 2016, Vol. 95, No. 4, pp. 801–822.
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Medvedev, S.G. Morphological diversity of the skeletal structures of fleas (Siphonaptera). Part 4: The general characteristic and features of the abdomen. Entmol. Rev. 96, 1069–1083 (2016). https://doi.org/10.1134/S0013873816080091
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DOI: https://doi.org/10.1134/S0013873816080091