Morphological, chemical and electrophysiological investigations of Telchin licus (Lepidoptera: Castniidae)

The giant sugarcane borer Telchin licus (Drury, 1773) (Lepidoptera: Castniidae) is a day-flying moth pest of sugarcane, pineapples and bananas. To better understand the chemical communication in this species, we examined the morphology of its olfactory system and the chemical composition of its body...

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Bibliographic Details
Published in:PloS one 2020-04, Vol.15 (4), p.e0231689-e0231689
Main Authors: Triana, Merybeth F, França, Paulo H B, Queiroz, Abel F O, Santos, Jakeline M, Goulart, Henrique F, Santana, Antônio E G
Format: Article
Language:English
Subjects:
Abdomen
Animals
Antennae
Arthropod Antennae - anatomy & histology
Arthropod Antennae - chemistry
Arthropod Antennae - physiology
Arthropod Antennae - ultrastructure
Bananas
Biology and Life Sciences
Biotechnology
Body parts
Borers
Butterflies & moths
Castniidae
Chemical communication
Chemical composition
Chemistry
Chromatography
Cold
Communication
Electroantennograms
Female
Females
Lepidoptera
Male
Males
Medicine and Health Sciences
Morphology
Moths - anatomy & histology
Moths - chemistry
Moths - physiology
Moths - ultrastructure
Olfactory system
Oviposition
Ovipositor
Pheromones
Physical Sciences
Pineapples
Research and Analysis Methods
Saccharum - parasitology
Scanning electron microscopy
Sensilla
Sex Attractants - analysis
Sex Attractants - metabolism
Sugarcane
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Description
Summary:The giant sugarcane borer Telchin licus (Drury, 1773) (Lepidoptera: Castniidae) is a day-flying moth pest of sugarcane, pineapples and bananas. To better understand the chemical communication in this species, we examined the morphology of its olfactory system and the chemical composition of its body parts. The ventral surface of the clubbed antennae of T. licus has six morphological types of sensilla: sensilla trichodea, basiconica, chaetica, squamiforma, coeloconica, and auricillica. The telescopic ovipositor shows no evidence of a sexual gland, or female-specific compounds. On the other hand, the midleg basitarsus of males releases (E,Z)-2,13-octadecadienol and (Z,E)-2,13-octadecadienol, which are electroantennographically active in both sexes. These compounds are known female sex pheromones in the Sesiidae family and are male-specific compounds in another castniid moth, although further investigations are necessary to elucidate their ecological role in the Castniidae family.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0231689