Trapping of retrachydes thoracicus thoracicus (Olivier) and other neotropical Cerambycid beetles in pheromone- and kairomone-baited traps

Dublin Core

Title

Trapping of retrachydes thoracicus thoracicus (Olivier) and other neotropical Cerambycid beetles in pheromone- and kairomone-baited traps

Subject

ESCARABAJOS
CERAMBYCINAE
FEROMONAS
ETANOL
BIBLIOGRAFIA NACIONAL QUIMICA
2022

Abstract

The subfamily Cerambycinae, one of the most diverse in longhorn beetles, is well known for its remarkable chemical parsi mony in male-emitted pheromones. Conserved shared structural motifs have been reported in numerous species, sometimes working in combination with plant volatile kairomones. Among other compounds, the most ubiquitous male pheromone in cerambycine species is 3-hydroxyhexan-2-one. We conducted feld trials using intercept traps baited with 3-hydroxyhexan- 2-one and observed abundant captures of several Neotropical cerambycine species. These were Retrachydes thoracicus thoracicus (Olivier), Megacyllene acuta (Germar), Compsocerus violaceus (White), and Cotyclytus curvatus (Germar) in high numbers, as well as Chydarteres striatus striatus (Fabricius) and Odontocroton favicauda (Bates) in smaller numbers. When ethanol was added to the traps, a remarkable increase in the attractiveness of 3-hydroxyhexan-2-one was observed for R. thoracicus thoracicus and M. acuta. Adding ethanol also resulted in the capture of Chrysoprasis aurigena (Germar). Finally, incidental catches in pheromone-baited traps of Trachelissa maculicollis (Audinet-Serville), Neoclytus pusillus (Laporte & Gory), Achryson unicolor (Bruch, 1908) and Achryson surinamum (Linnaeus), Megacyllene mellyi (Chevrolat) and Thelgetra adustus (Burmeister) were also observed. Pheromone chemistry has been reported for C. curvatus, M. acuta and N. pusillus, all three producing 3-hydroxyhexan-2-one, and for C. aurigena and A. surinamum, which produce other compounds. Our fndings suggest that the captured species probably produce 3-hydroxyhexan-2-one for their pheromone communication system. Alternatively, they might be “eavesdropping” on the pheromones of other cerambycine species. The probable synergistic efect of ethanol is likely explained from its kairomonal role as a volatile cue for plant stress or ripeness.

Creator

Do Carmo, Hugo
Heguaburu, Vivivana 
Monné, Marcela 
Buenahora, José 

Source

Neotropical Entomology v. 51, n° 3, 2022. -- pp. 386-396

Publisher

Sociedade entomológica do Brasil

Date

2022

Rights

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Format

PDF

Language

Inglés

Type

Artículo

Identifier

10.1007/s13744-022-00955-w

Document Item Type Metadata

Original Format

PDF
Date Added
June 13, 2022
Collection
Bibliografía Nacional Química
Item Type
Document
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Citation
Amorós, María Eugenia et al., “Trapping of retrachydes thoracicus thoracicus (Olivier) and other neotropical Cerambycid beetles in pheromone- and kairomone-baited traps,” RIQUIM - Repositorio Institucional de la Facultad de Química - UdelaR, accessed November 17, 2025, https://riquim.fq.edu.uy/items/show/6535.