Structure and sensilla of the antennae and mouthparts of Loxocephala perpunctata Jacobi (Hemiptera: Fulgomorpha: Eurybrachidae)

The ultramorphology of the antennae and mouthparts of the adult Loxocephala perpunctata Jacobi was studied through a scanning electron microscope. Seven types of sensilla were found on antennomeres, including a Böhm bristle on the scape, sensillum trichoideum and plaque organ on the pedicel, two sub...

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Bibliographic Details
Published in:Acta zoologica (Stockholm) 2019-04, Vol.100 (2), p.135-152
Main Authors: Meng, Yinfeng, Qin, Daozheng
Format: Article
Language:English
Subjects:
Antennae
Electron microscopes
Flagella
Fulgoroidea
Insects
Mouth
Mouthparts
Piercing
Scanning electron microscopy
Sensilla
ultrastructure
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Summary:The ultramorphology of the antennae and mouthparts of the adult Loxocephala perpunctata Jacobi was studied through a scanning electron microscope. Seven types of sensilla were found on antennomeres, including a Böhm bristle on the scape, sensillum trichoideum and plaque organ on the pedicel, two subtypes of sensilla chaetica and two subtypes of sensilla campaniformia on these two antennomeres; and Bourgoin's organ with sensory pegs and sensilla basiconicum on the basal bulb of the flagellum. The mouthparts of L. perpunctata are of the typical piercing‐sucking type, similar to mouthparts found in other hemipteran insects. In general, six types of sensilla (i.e., four subtypes of sensilla chaetica, sensillum basiconicum, subapical labial sensillum, uniporous peg‐like sensillum, multiporous peg‐like sensillum and two subtypes of bristle‐like sensilla) were detected on different locations of the labium, with the last three, and numerous cuticular processes, present on the labial tip. The potential functions of these sensilla are discussed.
ISSN:0001-7272
1463-6395
DOI:10.1111/azo.12239