[7] The female Stenoria analis lays her eggs on plants near to aggregations of ivy bees soon after mating, which has been recorded as occurring in low vegetation.

This larval stage also has strong jaws which they use when the larvae are attached to their host by their feet and are unable to use their claws.

[2] The consistency of the honey produced by each bee species is important, too liquid and the larvae may drown and too thick and it may starve.

[5] A few days layer, the triongulin metamorphoses into the secondary larva, developing a soft, thick body enabling it to float on the honey while it feeds on it.

It keeps on consuming the until near the end of April it becomes a pseudonymph undergoing a final moult, and ceases to feed, becoming immobile within the shed cuticles, exuvia, of the previous instars.

Initially white the nymph slowly gets darker until it emerges as an imago in around 10 days after the final moult.

The new imago remains immobile for a few days before ripping itself out of the various membranes surrounding it and exiting the cell, into the open in the following summer.