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ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Stuttgarter Beiträge Naturkunde Serie A [Biologie] Jahr/Year: 1996 Band/Volume: 544_A Autor(en)/Author(s): Schmalfuss Helmut Artikel/Article: The Terrestrial Isopod Genus Armadillo in Western Asia (Oniscidea: Armadillidae), with Descriptions of Five New Species 1-43 . download Biodiversity Heritage Library, http://www.biodiversitylibrary.org/ /^Stuttgarter Beiträge zur Naturkunde Serie A (Biologie) Herausgeber: Staatliches Museum für Naturkunde, Rosenstein 1, D-70191 Stuttgart Stuttgarter Beitr. Naturk. Ser. A Nr. 544 43 S. Stuttgart, 30. 9. 1996 The Terrestrial Isopod Genus Armadillo in Western Asia (Oniscidea: Armadillidae), ith Descriptions of Five New Species By^Fielmut Schmal fuss, Stuttgart iW i 2 1997 J With 81 figures Summary A diagnostic definition of the genus Armadillo is presented; it is shown to be restricted to the Mediterranean region and adjacent desert areas, and nomenclatural problems are discus- sed. Some observations on the systematic Situation of the family Armadillidae are added. The seven species of Armadillo known from western Asia (A albomarginatus, A. alievi, A. erythroleucus, A. officinalis, A. platypleon, A. troglophilus, A. tuberculatus) are revised, the diagnostic characters are figured, and new records are reported. Five new species from Israel, Palestine and Syria are described and figured: A albus n. sp., A carmelensis n. sp., A jorda- nius n. sp., A kinzelbacbi n. sp. and A sordidus n. sp. Zusammenfassung Die Gattung Armadillo wird diagnostisch definiert; ihre Verbreitung ist auf das Mittel- meergebiet und angrenzende Wüsten-Regionen beschränkt. Nomenklatorische Probleme werden diskutiert. Einige Beobachtungen zur systematischen Situation der Familie Armadil- lidae werden angeführt. Die sieben aus West-Asien bekannten Armadillo-Arten (A albomar- ginatus, A. alievi, A. erythroleucus, A. officinalis, A. platypleon, A. troglophilus, A. tubercula- tus) werden revidiert, die diagnostischen Merkmale abgebildet, und Neufunde mitgeteilt. Fünf neue Arten aus Israel, Palästina und Syrien werden beschrieben und abgebildet: .4. albus n. sp., A carmelensis n. sp., A jordanius n. sp., A kinzelbacbi n. sp. und A sordidus n. sp. Contents 1 Introduction 2 2. Abbreviations 2 3. Acknowledgments 2 4. The genus Armadillo Latreille, 1 802 3 5. Armadillo species from western Asia 3 5. 1 . Armadillo officinalis Dumeril, 1816 4 download Biodiversity Heritage Library, http://www.biodiversitylibrary.org/ 2 STUTTGARTER BEITRÄGE ZUR NATURKUNDE Ser. A, Nr. 544 5.2. Armadillo albomarginatus Dollfus, 1892 14 5.3. Armadillo albus n. sp 14 5.4. Armadillo alievi Schmalfuss, 1990 20 5.5. Armadillo carmelensis n. sp 22 5.6. Armadillo erythroleucus Budde-Lund, 1904 23 5.7. Armadillo jordanius n. sp 23 5.8. Armadillo kinzelbachi n. sp 28 5.9. Armadillo platypleon Schmalfuss, 1986 28 5.10. Armadillo sordidus n. sp 30 5.11. Armadillo troglophilus Vandel, 1955 37 5.12. Armadillo tuberculatus Vogl, 1876 38 6. References 42 1. Introduction Until now 7 species of the terrestrial isopod genus Armadillo have been recorded from the eastern Mediterranean region (see summary). The examination of large collections from the Near East revealed another five undescribed species, whose de- scriptions are given in the present paper, together with a revision of the species al- ready known from the investigated region. The great similarity of these Near East species suggests that speciation processes have taken place rather recently, perhaps evoked by climatic changes during the Pleistocene (e. g. desertification). A still not quite satisfactory definition of the family Armadillidae is given in Schmalfuss & Ferrara (1983). Convincing evidence for its monophyly has still to be worked out (as for the majority of terrestrial isopod families). In addition to the fa- mily characteristics mentioned in the literature there is a further derived character that might be a synapomorphy of all members of the family: The basis of the genital papilla is covered by a caudal process of sternite VII. This process, which is present as a triangulär structure in genera of other families (i. g. Trachelipus, Porcellio, Ar- madillidium) is bilobed in Armadillo (fig. 19), and it shows the same shape in the ar- madillid genera Venezillo, Spherillo and Cubaris. In any case the present knowledge allows the assumption of a monophyletic origin of the Armadillidae which took place on the Gondwana continent. The family is present in South America, South Africa, the Oriental region, Australia and in the Mediterranean region. The mediterranean Armadillo could have reached its present distribution area by spreading from the Oriental region along the shores of the former Tethys. Today it is separated from its oriental relatives by a gap formed by the steppe and desert countries of central Asia. 2. Abbreviations MNHNP = Musee National d'Histoire Naturelle Paris; NHML = The Natural History Museum London; SMNS = Staatliches Museum für Naturkunde Stuttgart (with isopod collection numbers); ZMB = Zoologisches Museum der Humboldt-Universität Berlin; ZSM = Zoologische Staatssammlung München; sp. = specimens. 3. Acknowledgments I wish to thank Prof. Dr. R. Kinzelbach and co-workers (Darmstadt), Dr. W. Schawaller (SMNS), Dr. J Popov (Moscow), Dr. P. Tschorsnig (SMNS), Dr. R. Grimm (Tübingen), Dr. A. Rachinsky (Tübingen), D. Liebegott (Frankfurt/M.), Dr. V. Haas (Munich) and Dr. W. Rähle download Biodiversity Heritage Library, http://www.biodiversitylibrary.org/ SCHMALFUSS, ARMADILLO IN WESTERN ASIA 3 (Tübingen) for having provided material of the species treated in the present paper, Dr. H. Da- lens (Toulouse), Prof. Dr. H.-E. Grüner (ZMB), M. Lowe (NHML) and Dr. L. Tiefenbacher (ZSM) for the loan of specimens, and Prof. Dr. M. Warburg (Haifa) for help and guidance du- ring field investigations in Israel. S. Leidenroth (SMNS) operated the scanning electron microscope and produced the photographs. Field work of the author in Israel was financially supported by the Israel Institute of Technology, Haifa. 4. The genus Armadillo Latreille, 1802 Ty pe-species: Armadillo officinalis Dumeril, 1816. The question of the validity of the genus name Armadillo Latreille, 1802, and thus also of the family name Armadillidae, is not yet settled. Armadillo Latreille, 1802 is a junior homonym of the diplopod Armadillo Cuvier, 1792. The item is discussed by Lehtinen & Holthuis (1995). Since the genus name Armadillo has now been used exclusively and consistently more than 150 years for the isopod genus I shall keep to this usage until the question is decided by the International Commission on Zoolo- gical Nomenclature. Generic diagnose: 1. Animals able of endo-antennal conglobation. 2. Schisma on pereion-epimara I in frontal direction continued as a ventral groove (figs. 1-3). 3. Pereion-epimera II folding backwards on the interior side, the fold frontall v closed (fig. 3). 4. Telson hour-glass-shaped, with an incision at about the level of the position of the uropod-exopodites (fig. 5). 5. Propodus of pereiopods IV and V dorsally in both sexes with a ledge of scales ("plectrum") used for stridulation (figs. 12-13) (Caruso & Costa 1976). While the characters I - IV are shared by other genera of the family Armadillidae character V has as yet only been recorded in the Mediterranean species of Armaddlo s. str. and has to be seen as a synapomorphy defining this genus. The genus Armadillo as defined above is distributed throughout the Mediterra- nean region and western Asia, reaching the western shore of the Caspian Sea to the east. In addition to the 12 species treated in the present paper four more are know n from the central and western Mediterranean region: A. hirsutus C. L. Koch, 1856 from southern Spain, A. mayeti Simon, 1885 from Tunisia, A. montanus Budde- Lund, 1904 from Libya and A. sodalis Budde-Lund, 1885 from Egypt. The species "Armadillo" ausseli Dollfus, 1893 from the Canary Islands does not have the Dia- gnostic stridulation struetures (character V) and probably belongs to Venezillo as the other Canarian Armadillidae, with American origin. 5. Armadillo species from western Asia The most important diagnostic characters in the treated group o\ species are the shape and proportions ol the telson in both sexes, ,\nd the strueture ol the male pe- reiopod VII and plcopod-exopodite 1. The species A. albus .\nd \. tuberculatus ha\ e heavily tuberculated tergites, while in the other species the tergal parts are smooth. Coloration can be diagnostic, but varies a great d'eal indi\ lduallv and should be used for identification onlv in connexion with morphologicaJ characters. 1 he strueture of download Biodiversity Heritage Library, http://www.biodiversitylibrary.org/ 4 STUTTGARTER BEITRÄGE ZUR NATURKUNDE Ser. A, Nr. 544 the margins of epimera I and II is very similar in all but the two tuberculated species and the cavernicolous A. troglopbilus; a slight intraspecific Variation overlaps with the interspecific differences, rendering these characters unsuitable for diagnostic purposes. In the two tuberculated species the marginal groove on epimeron I is not visible in a strictly lateral view indicating that the groove is facing in a more ventral direction. The legs can be relatively short and stout as in A. albomarginatus to rela- tively long and slender as in A. troglopbilus. The male pereiopod VII varies diagno- stically concerning the width of the basipodite and