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@proceedings{1336031, author = {Hemala, Vladimír and Kment, Petr and Malenovský, Igor}, booktitle = {Zoologické dny České Budějovice 2016. Sborník abstraktů z konference 11.–12. února 2016}, keywords = {Hemiptera; Heteroptera; Pyrrhocoroidea; metathorax; scent glands; morphology}, language = {eng}, isbn = {978-80-87189-20-7}, title = {External structures of the metathoracic scent gland efferent system in the true bug superfamily Pyrrhocoroidea (Hemiptera: Heteroptera)}, year = {2016} }
TY - CONF ID - 1336031 AU - Hemala, Vladimír - Kment, Petr - Malenovský, Igor PY - 2016 TI - External structures of the metathoracic scent gland efferent system in the true bug superfamily Pyrrhocoroidea (Hemiptera: Heteroptera) SN - 9788087189207 KW - Hemiptera KW - Heteroptera KW - Pyrrhocoroidea KW - metathorax KW - scent glands KW - morphology N2 - The metathoracic scent gland efferent system (MTSG) is one of the apomorphic and diagnostic structures in true bugs (Heteroptera), developed only in adults. External structures of MTSG, such as ostiole, vestibular scar, peritreme, and evaporatorium (terminology by Kment & Vilímová 2010: Zootaxa 2706: 1–77) provide useful characters for systematics of Heteroptera, as was documented e.g. for Reduvioidea and Coreoidea. In the superfamily Pyrrhocoroidea (firebugs, cotton stainers) including two families (Largidae, Pyrrhocoridae) with 72 genera and more than 660 species, the structure of MTSG had been only poorly known so far. We have examined 16 genera of Largidae and 41 genera of Pyrrhocoridae mostly by scanning electron microscopy. We have detected two basic types of external structures of MTSG: 1. peritremal disc in Largidae with two subtypes differing between subfamilies Larginae and Physopeltinae; 2. auricle in Pyrrhocoridae with various modifications and reductions. The situation in Largidae supports the present division into two subfamilies which was based on other morphological features. In the Pyrrhocoridae, there are several cases of modifications of the peritreme and the evaporatorium, which may indicate at least two groups of genera and several subgroups; these groupings, however, still need to be tested cladistically using a larger set of morphological characters, not only MTSG. Notably, some genera in Pyrrhocoridae (Callibaphus, Cenaeus, Dermatinus, Gromierus, Jourdainana, Paradindymus, Probergrothius, Pyrrhocoris, Pyrrhopeplus, Scantius, and Sicnatus) are distinct in sharing a more or less reduced auricle, which may represent a synapomorphy or convergence. The study is a part of an ongoing dissertation focusing on the morphology and phylogeny of the Pyrrhocoroidea. ER -
HEMALA, Vladimír, Petr KMENT a Igor MALENOVSKÝ. External structures of the metathoracic scent gland efferent system in the true bug superfamily Pyrrhocoroidea (Hemiptera: Heteroptera). In \textit{Zoologické dny České Budějovice 2016. Sborník abstraktů z konference 11.–12. února 2016}. 2016. ISBN~978-80-87189-20-7.
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