[5] In New Zealand, long-horn beetles are important pollinators for native plants, including harakeke (common flax).

[10] It has been found that the body colour of this species plays an important role in mating success in both males and females.

[9] Females lay eggs in freshly cut and broken branches of both native and exotic plants.

[7] Zorion guttigerum are often found in great numbers near flowers and they may be important pollinators for many New Zealand native plants.

Some host species include: Discaria toumatou (matagouri), Phormium tenax (harakeke), Schefflera digitata (patē), Pennantia corymbose (kaikōmako).

[4] Aside from flowers, Z. guttigerum have been found on the foliage and branches of some plants including: Pseudowintera colorata (pepperwood), Chamaecytisus palmensis (tree lucerne), Sophora microphylla (kōwhai), Galium palustae (marsh bedstraw), and Olearia virgata (twiggy tree daisy).