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Supplemental Information

Spectral composition of light source in the experimental room

a) Over the whole insect-visible spectrum; b) expanded view of the near-UV region(with an increased integration time) showing the availability of < 400nm light in addition to human-visible light. Spectra were measured with an Avantes AvaSpec-2048 with an integration time of a) 15ms and b) 50ms respectively, in the centre of bench areas where work took place.

DOI: 10.7287/peerj.preprints.2110v1/supp-1

Analysis of insects' directions of movement

a) Results of Rayleigh test analysis (z-scores) of S. zeamais orientation vectors and b) binomial test probabilities (Bonferroni-corrected to a significance value of 0.0016) in the presence and absence of host odours. Visual stimuli were presented at 90° to the camera azimuth and odour stimuli at 180° to the camera azimuth. (In a), * indicates p < 0.05, ** p < 0.01, *** p < 0.001; in b) # indicates significance after correction.)

DOI: 10.7287/peerj.preprints.2110v1/supp-2

a) Inputs and b) full outputs for the statistical analyses performed on walking vectors and distance moved

DOI: 10.7287/peerj.preprints.2110v1/supp-3

Metadata for insect individuals and key parameters

DOI: 10.7287/peerj.preprints.2110v1/supp-4

Raw track file data for all insects

DOI: 10.7287/peerj.preprints.2110v1/supp-5

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Sarah EJ Arnold conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Philip C Stevenson contributed reagents/materials/analysis tools, wrote the paper, reviewed drafts of the paper, involved in interpretation of results.

Steven R Belmain contributed reagents/materials/analysis tools, wrote the paper, reviewed drafts of the paper, involved in interpretation of results.

Data Deposition

The following information was supplied regarding data availability:

No raw genetic/molecular/bioinformatics data were generated by the research. Behavioural data raw numbers are uploaded as supplementary information.


The authors acknowledge funding from a University of Greenwich Higher Education Funding Council for England grant to SEJA, the McKnight Foundation supported project "Safe and effective pesticidal plants for agro-ecological intensification of legumes", and the European Union African-Caribbean-Pacific Science and Technology Programme OPTIONS project FED/2013/329-272. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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