Diprionidae

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Hymenopterida
Ordo: Hymenoptera
Subordo: Symphyta
Superfamilia: Tenthredinoidea

Familia: Diprionidae
Genera: Diprion – Gilpinia – Nesodiprion – Prionomeion – ...
References

DOI: 10.4289/0013-8797.114.2.224
Hara, H. 2016. The North African sawfly genus Prionomeion (Hymenoptera, Diprionidae), with a key to the Palaearctic genera of the subfamily Diprioninae. Zootaxa 4127(3): 537–552. DOI: 10.11646/zootaxa.4127.3.7. Reference page.

The Diprionidae are a small family of conifer-feeding sawflies (thus the common name conifer sawflies, though other Symphyta also feed on conifers) restricted to the Northern Hemisphere, with some 140 species in 13 genera. Larvae are often gregarious, and sometimes there can be major outbreaks, thus these sawflies can be major forest pests at times.[1] These sawflies have the ability to compromise the health and ecological balance of forests. When the temperatures begin to rise, the sawflies become strengthened pests to these conifers. In doing so, they cause damage to a certain extent. [2]

The family has distinctive antennae with about 20 flagellomeres. Males have pectinate antennae and females have serrate antennae.[3]
Sawfly infestation in Scots pines
Genera

These 13 genera belong to the family Diprionidae:

Augomonoctenus Rohwer, 1918
Diprion Schrank, 1802
Gilpinia Benson, 1939
Macrodiprion Enslin, 1914
Microdiprion Enslin, 1914
Monoctenus Dahlbom, 1835
Neodiprion Rohwer, 1918
Nesodiprion Rohwer, 1910
Prionomeion Benson, 1939
Rhipidoctenus Benson, 1954
Zadiprion Rohwer, 1918
† Eodiprion Schedl, 2007
† Paleomonoctenus Nel, 2004

References

Taeger, A.; Liston, A.D.; Prous, M.; Groll, E.K.; et al. (2018). "ECatSym – Electronic World Catalog of Symphyta (Insecta, Hymenoptera)". Senckenberg Deutsches Entomologisches Institut (SDEI), Müncheberg. Retrieved 2019-05-31.
Aguilera-Molina, Víctor M. (July 6, 2019). "Climate change and forest plagues: assessing current and future impacts of diprionid sawflies on the pine forests of north-western Mexico". PeerJ: 17 – via Web of Science.
Hymenoptera of the world : an identification guide to families. Goulet, Henri., Huber, John T. (John Theodore), Canada. Agriculture Canada. Research Branch. Ottawa, Ont.: Centre for Land and Biological Resources Research. 1993. ISBN 0-660-14933-8. OCLC 28024976.