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J Insect Physiol. 2016 Dec;95:133-139. doi: 10.1016/j.jinsphys.2016.10.006. Epub 2016 Oct 14.

Photoreceptor spectral sensitivity of the compound eyes of black soldier fly (Hermetia illucens) informing the design of LED-based illumination to enhance indoor reproduction.

Author information

1
Laboratory of Entomology, Plant Sciences Group, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands. Electronic address: dennisoonincx@gmail.com.
2
Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna pot 111, SI-1000 Ljubljana, Slovenia.
3
Laboratory of Entomology, Plant Sciences Group, Wageningen University, PO Box 16, 6700 AA Wageningen, The Netherlands.

Abstract

Mating in the black soldier fly (BSF) is a visually mediated behaviour that under natural conditions occurs in full sunlight. Artificial light conditions promoting mating by BSF were designed based on the spectral characteristics of the compound eye retina. Electrophysiological measurements revealed that BSF ommatidia contained UV-, blue- and green-sensitive photoreceptor cells, allowing trichromatic vision. An illumination system for indoor breeding based on UV, blue and green LEDs was designed and its efficiency was compared with illumination by fluorescent tubes which have been successfully used to sustain a BSF colony for five years. Illumination by LEDs and the fluorescent tubes yielded equal numbers of egg clutches, however, the LED illumination resulted in significantly more larvae. The possibilities to optimize the current LED illumination system to better approximate the skylight illuminant and potentially optimize the larval yield are discussed.

KEYWORDS:

Black soldier fly; Indoor breeding; Light Emitting Diode; Spectral sensitivity; UV light

PMID:
27751886
DOI:
10.1016/j.jinsphys.2016.10.006
[Indexed for MEDLINE]

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