Pamphiliidae

Pamphiliidae
Acantholyda nemoralis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Suborder:	Symphyta
Superfamily:	Pamphilioidea
Family:	Pamphiliidae Cameron, 1890
Diversity
~200 species in 8 genera

Pamphiliidae (sometimes incorrectly spelled Pamphilidae) is a small wasp family within Symphyta, containing some 200 species from the temperate regions of North America and Eurasia. The larvae feed on plants (often conifers), using silk to either build webs or tents, or to roll leaves into tubes, in which they feed, thus earning them the common names leaf-rolling sawflies or web-spinning sawflies. They are distinguished from the closely related Megalodontesidae by their simple, filiform antennae.

The family is currently divided into three subfmailies based on phylogenetic analysis of both extant and extinct species.

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Wikipedia