| Title: | External structures of the metathoracic scent gland efferent system in the true bug superfamily Pyrrhocoroidea (Hemiptera: Heteroptera: Pentatomomorpha) |
| Author(s): | Hemala V; Kment P; Tihlarikova E; Nedela V; Malenovsky I; |
| Address: | "Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlarska 2, 611 37, Brno, Czech Republic. Electronic address: vladimir.hemala@gmail.com. Department of Entomology, National Museum, Cirkusova 1740, 193 00, Prague, Horni Pocernice, Czech Republic. Electronic address: sigara@post.cz. Institute of Scientific Instruments, Czech Academy of Sciences, Kralovopolska 147, 612 64, Brno, Czech Republic. Electronic address: tihlarik@isibrno.cz. Institute of Scientific Instruments, Czech Academy of Sciences, Kralovopolska 147, 612 64, Brno, Czech Republic. Electronic address: vilem@isibrno.cz. Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlarska 2, 611 37, Brno, Czech Republic. Electronic address: malenovsky@sci.muni.cz" |
| DOI: | 10.1016/j.asd.2021.101058 |
| ISSN/ISBN: | 1873-5495 (Electronic) 1467-8039 (Linking) |
| Abstract: | "Pyrrhocoroidea represents an important group of true bugs (Insecta: Hemiptera: Heteroptera) which includes fire bugs, cotton stainers and other taxa widely used in experimental studies or known as pests. However, the morphology and phylogeny of Pyrrhocoroidea have been only poorly studied so far. Here, structures of the external scent efferent system of the metathoracic scent glands are examined in 64 out of 71 currently valid genera of Pyrrhocoroidea and scanning electron micrographs are provided for most taxa. Several characters are revealed which define each of the three higher taxa within Pyrrhocoroidea: Larginae (small auriculate peritreme lacking manubrium and median furrow; metathoracic spiracle never surrounded by evaporatorium), Physopeltinae (large, widely open ostiole; large peritremal disc with manubrium [new term], lacking median furrow; mace-like mycoid filter processes of equal shape and size on both anterior and posterior margins of metathoracic spiracle), and Pyrrhocoridae (elongate auriculate peritreme with deep median furrow). Within Pyrrhocoridae, three main types (A, B and C) of the external scent efferent system are distinguished, differring in the amount of reductions. The findings are interpreted in the context of phylogenetic hypotheses available for Pyrrhocoroidea and their close relatives, Coreoidea and Lygaeoidea. An updated identification key to the families and subfamilies of Pyrrhocoroidea applicable for both sexes is provided" |
| Keywords: | Animals Female *Heteroptera Male Pheromones Phylogeny Scent Glands Comparative morphology Eutrichophora Insect thorax Scanning electron microscopy Spiracle; |
| Notes: | "MedlineHemala, Vladimir Kment, Petr Tihlarikova, Eva Nedela, Vilem Malenovsky, Igor eng England 2021/05/26 Arthropod Struct Dev. 2021 Jul; 63:101058. doi: 10.1016/j.asd.2021.101058. Epub 2021 May 24" |
