Finally! We have a background to work with. It's not rendered since there's gonna be a lot of characters on top it, but it will be finished... eventually.

They are shaped the same, the wisps look like "flipped upside down" silkflies. whilst we know that silkflies were a product of soul extraction from bugs in pharloom (resulting in death im pretty sure), the wisps spawn from lanterns. (father of the flame was a bug inside a cage, so perhaps the wisps are also a product of soul? maybe when hornet uses the lantern it uses both soul and silk?). (my theory is that both use soul but how they behave is dictaed by feelings/ intensions of the bug). The wisps burn away silk, but silkflies seem to be attracted to it. the wisps are enemies whilst silkflies "help out" hornet several times in the game. the wisps are connected to the buring bugs which are frenzied in their devotion, which gives the wisp connotations of ecstasy/ crazy happiness (there's also same needolin dialogue about dancing). The process of extraction from bugs past their prime and the way the silkflies linger near corpses (i count the construct corpses too) seem to connect them to feelings of sadness/ grief. The wisps represent a quick life and a quick death, whilst silkflies represent a never ending life due to citadels silk experimentation. it could also be read as wisps representing strong emotion and the silkflies representing a lack of emotion at all (the way that constructs behave and talk, solely focused on their tasks)