Like all Stenogastrinae, wasps of P. jacobsoni prefer to nest in very humid environments in the rainforest, near streams or waterfalls, or on the surfaces of caves.
Layaknya seluruh Stenogastrinae, tawon P. jacobsoni lebih menyukai lingkungan sangat lembab di hutan hujan, dekat aliran sungai atau air terjun, atau di permukaan gua.