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Conifer Sawflies
Diprion pini from British Entomology
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Suborder: Symphyta
Superfamily: Tenthredinoidea
Family: Diprionidae

The Diprionidae are a small family of conifer-feeding sawflies (thus the common name conifer sawflies, though other Symphyta feed on conifers) restricted to the Northern Hemisphere, with some 90 species in 11 genera worldwide. Larvae are often gregarious, and sometimes there can be major outbreaks, thus these sawflies can be major forest pests at times.

The family is distinctive in having antennae with about 20 flagellomeres, and serrate or pectinate.

Sawfly infestation in Scots pines

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