These flowers typically attract nocturnal insects including many moth species.
Most likely the visitor had been only a moth or some other nocturnal insect.
The nocturnal insects had a voracious appetite for human blood, but only men were bothered.
They are large (4.8 to 6.5 cm long), predatory and nocturnal insects.
It is thought to be a sit and wait predator, waiting for nocturnal insects to venture nearby.
Even the smoke of the fire was beneficial: it kept the thronging nocturnal insects at bay.
"I mean, besides flee from the sun every morning as if you were a nocturnal insect or a giant slug?"
At least two of these open their flowers at night and are attractive to nocturnal insects.
The windows were wide open and he could hear the sleepy drone of the nocturnal insects.
Many nocturnal insects have a slightly different compound eye which allows them to gather more light.