Morphological study of the labial sensilla in Nabidae (Hemiptera: Heteroptera: Cimicomorpha)

The study presents new data on the morphology and distribution of the labial tip sensilla of six species of two nabid subfamilies—Protosteminae and Nabinae (Heteroptera: Cimicomorpha), which were obtained using a scanning electron microscope. In both taxa, there are five morphologically distinct typ...

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Bibliographic Details
Published in:Zoomorphology 2019-12, Vol.138 (4), p.483-492
Main Authors: Taszakowski, Artur, Nowińska, Agnieszka, Brożek, Jolanta
Format: Article
Language:English
Subjects:
Animal Anatomy
Animal Systematics/Taxonomy/Biogeography
Biomedical and Life Sciences
Cimicomorpha
Developmental Biology
Evolutionary Biology
Heteroptera
Himacerus
Histology
Life Sciences
Morphology
Nabinae
Original Paper
Scanning electron microscopy
Sensilla
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Summary:The study presents new data on the morphology and distribution of the labial tip sensilla of six species of two nabid subfamilies—Protosteminae and Nabinae (Heteroptera: Cimicomorpha), which were obtained using a scanning electron microscope. In both taxa, there are five morphologically distinct types of sensilla on the tip of the labium: peg sensilla with a terminal pore, nonporous peg sensilla, elongated placoid sensilla with wall pores (multiporous), and trichoid sensilla. In addition, oval plate sensilla with a terminal pore (Tp-opls) were observed in the genus Himacerus . Campaniform sensilla and nonporous chaetic sensilla were observed on the surface of the last segment of the labium in all of the studied species. Over a dozen trichoid sensilla were scattered on the last segment of the labium only in the genus Prostemma . Based on their external structure, it is likely that these sensilla are chemosensitive and mechanosensitive. The oval plate sensilla with a Tp-opls (gustatory) in Himacerus (Nabinae) represent a morphological novelty that probably evolved independently of other nabids.
ISSN:0720-213X
1432-234X
DOI:10.1007/s00435-019-00455-3