[4] Nymphs of Siphanta acuta are white with a pair of waxy filaments either side of the sixth abdominal segment, with two long tufts at the tip of the abdomen.

[2] Noted geographic distribution in the South Island includes Buller, Central Otago, Mid Canterbury, Nelson, and Westland.

[2] Individuals have been surveyed in a variety of environments, from gardens with native and introduced plants, to broadleaf and mixed forests, to moss on rocks at high altitude.

[4] After mating, females usually lay 90-110 eggs on a leaf in a flat oval cluster via the ovipositor; these are known as egg-cushions, which turn from white to black (due to a fungus that grows on empty shells).

[3] Common host plants that Siphanta acuta feed from include coprosma, citrus trees, ornamental shrubs (within New Zealand), and a large variety of native and exotic species (within Australia).

[4] This parasite or a closely allied one has also been observed in New Zealand, specifically Whangarei where they were noted emerging in large numbers; mostly from eggs, some in a variety of ages, and a couple from mature planthoppers.

Siphanta acuta act as pests and are associated with Australian citrus die-back[7] while also feeding on weeds like bridal creeper.