Antennal morphology and sensilla ultrastructure of Dendroctonus valens LeConte (Coleoptera: Curculionidae, Seolytinae), an invasive forest pest in China

Micron : the International Research and Review Journal for Microscopy
Hai-Bo ChenXiangbo Kong

Abstract

Dendroctonus valens LeConte, an invasive forest pest, is highly dependent on its olfactory system for activities such as host seeking, mating, oviposition and population aggregation. The antennae are the primary olfactory organs in bark beetles. We describe four morphological types of sensilla on the antenna of D. valens: (1) 3 subtypes of sensilla trichodea located at the apex and lateral surface of the club. Sensilla trichodea types 1 and 3 were innervated by 5 and 13 dendrites, respectively. Sensilla trichode type 2 was not found dendrites in a lumen, (2) sensilla chaetica found on the scape and funicle and innervated by 7 dendrites, (3) a pair of sensilla basiconica distributed primarily on the three sensory bands, each innervated by 2 dendrites at the base, and (4) one fluted cone type of grooved peg dispersed throughout the sensory bands. The possible functions of these sensilla are discussed in relation to their morphology and ultrastructure.

References

Jan 1, 1971·Zeitschrift für Zellforschung und mikroskopische Anatomie·T K Borg, D M Norris
Jan 23, 1998·Microscopy Research and Technique·T A Keil
Sep 10, 1981·Nature·R G Vogt, L M Riddiford
Oct 7, 2009·Cell·Chih-Ying SuJohn R Carlson

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Citations

May 3, 2014·Journal of Insect Science·Rubén PalmaAndrés Quiroz
May 26, 2015·Micron : the International Research and Review Journal for Microscopy·Yanru ZhangYouqing Luo
Jan 9, 2021·Micron : the International Research and Review Journal for Microscopy·Guilherme Martins LimbergerDuane Barros da Fonseca

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