Pamphiliidae

Pamphiliidae is a small family of sawflies, commonly known as conifer sawflies or web-spinning sawflies. These insects are characterized by their stout bodies and relatively short antennae. They are found in the temperate regions of the Northern Hemisphere. The family contains only a few genera and a limited number of species.

The larvae of Pamphiliidae are notable for their gregarious behavior and their habit of spinning silken webs or cases. These silken structures are often used as shelters and for protection from predators. Larvae feed primarily on the foliage of conifers, such as pines, spruces, and firs, and can sometimes be considered pests in forestry. The larvae typically hatch in groups and work together to construct their communal shelters.

Adult Pamphiliidae are generally short-lived and do not feed. Their primary role is reproduction. They are often seen flying during the spring and summer months. The life cycle involves egg-laying on host plants, followed by larval development, pupation within a cocoon, and emergence of the adult. The specific host plants vary depending on the species. Due to their specialized diet and habitat, their distribution is closely tied to the presence of coniferous forests.