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Harraca, V. Ignell, R., Löfstedt, C. & Ryne, C. 2009. Characterization of the antennal olfactory system of the bed bug (Cimex lectularius). Chemical senses 35: 195-204. First single sensillum electrophysiological study conducted on bed bugs, Cimex lectularius. https://pubmed.ncbi.nlm.nih.gov/20032111/

Ryne, C. 2009. Homosexual interactions in bed bugs: alarm pheromones as male recognition signals. Animal behaviour 78: 1471-1475.

Ryne showed that male bed bugs use alarm pheromones as a sex recognition moderator to reduce homosexual interactions.

https://www.lu.se/lup/publication/6afacb7f-7a75-4983-893f-13fa05047bb5

Harraca, V. Ryne, C. & Ignell, R. 2010. Nymphs of the common bed bug (Cimex lectularius) produce anti-aphrodisiac defence against conspecific males. BMC Biology 8: 121.

An extension of Ryne (2009) showing that bed bug nymphs produce specific alarm pheromones in their dorsal abdominal glands. These pheromones are detected by males and act to protect nymphs against traumatic extragenital insemination as do also the nymph specific ratio of the common bed bug alarm pheromones.

https://www.lunduniversity.lu.se/lup/publication/4c0c8c3f-7973-4613-a993-9cd2c6678771

Liedtke, H. C., Åbjörnsson, K., Harraca, V., Knudsen, J. T., Wallin, E. A., Hedenström, E. & Ryne, C. 2011. Alarm pheromones and chemical communication in nymphs of the tropical bed bug Cimex hemipterus (Hemiptera: Cimicidae). PLos ONE 6(3) e18156.

The study showed that the antennal morphology and volatile emissions (alarm pheromones) of the tropical bedbug closely resemble those of the common bed bug (Cimex lectularius), though in somewhat different ratios. The nymph specific compounds are suggested to be the cause of a repellent effect demonstrated in biotests.

The findings suggest that common pheromone-based pest control methods can be used for both the common and the tropical bed bug.

https://www.lunduniversity.lu.se/lup/publication/39ea3b02-24e1-4114-a138-d100126821ca 

Harraca, V., Ryne, C., Birgersson, G. & Ignell, R. 2012. Smelling your way to food: can bed bugs use our odour? The Journal of Experimental Biology 215: 623-629.

A step-by-step traditional chemical ecology study in which human aeration extracts first were tested in all antennal sensilla, whereafter the behavioural effect of the compounds detected were tested on bed bugs and a significant impact on bed bug behaviour was found.

https://portal.research.lu.se/en/publications/smelling-your-way-to-food-can-bed-bugs-use-our-odour