Nematinae

Classification

Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Order: Hymenoptera
Family: Tenthredinidae
Subfamily: Nematinae

Pronunciation

How to pronounce Nematinae: /nɛˈmeɪtɪˌniː/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

1977. Striped alder sawfly (Hemichroa crocea) mature lavae, 20 mm long, feeding on alder leaf. Figure 258 on page 448 in Furniss and Carolin. 1977. Western Forest Insects. (38594687992) by R6, State & Private Forestry, Forest Health Protection. Used under a Public domain license.

Nematinae (10.3897-zookeys.875.35748) Figures 108–112 by Prous M, Liston A, Kramp K, Savina H, Vårdal H, Taeger A (2019) The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae). ZooKeys 875: 63-127. https://doi.org/10.3897/zookeys.875.35748. Used under a CC BY 4.0 license.

Apple Hoplocampa testudinea by Michal Maňas. Used under a CC BY 3.0 license.

Hemichroa crocea by iNaturalist user: abumadsen. Used under a CC0 license.

Nematus abbotii by Beatriz Moisset. Used under a CC BY-SA 4.0 license.

Cladius pectinicornis male (23808411941) by Line Sabroe from Denmark. Used under a CC BY 2.0 license.

Summary

Nematinae is a subfamily of sawflies within the Tenthredinidae family, containing over 1250 species across approximately 40 genera. These insects have diverse feeding habits and are integral to ecosystems through their interactions with various plant species.

Habitat

Predominantly found in boreal forests, also distributed across Eurasia and North America.

Distribution

Almost entirely restricted to Eurasia and North America.

Diet

Most species are external leaf feeders; some form galls, mine leaves/petioles, or feed in developing fruit.

Ecosystem Role

Nematinae plays a critical role in leaf processing and plant interactions within their ecosystems, influencing plant health and diversity.

Evolution

Nematinae is notable for reversing the typical pattern of species diversity in insects, with the highest diversity observed in boreal forest zones rather than tropical regions. Advances in phylogenetic understanding have led to reclassifications within the genera, particularly regarding species that feed on willow.