Intelligent Insects Life evolves in a similar manner regardless of the predominant atomic elements on any given world.
Carbon based or silicon based, the process of DNA evolution is strikingly similar.
Add to that the factor of seeding potential life bearing planets and the similarities between life that develops on one world and life that develops on another may be almost identical. However, the environment on a given planet may be harsh to one type of life form and ideal for another. The impact of the environment is most commonly seen in the prevalence of water planets, where no dry land exists, failing to evolve land dwelling creatures at all. Here the life form that emerges as the intelligent species is most often a type of octopus, as their tentacles allow manipulation of the environment and intelligence eventually develops due to that capacity. The second most common impact of the environment occurs where mammals fail to prosper because reptiles prospered so well.