Adelognathus

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Adelognathus Holmgren, 1857

Overview

Taxonomy

Key (species)

Adelognathus sp.

Description

Adelognathus is the only genus in Adelognathinae. All species are small, about 5-8 mm long, best recognized by the unusually low number of flagellomeres (12 in all but one species, A. thomsoni, which has 13). Additionally, the labrum is widely exposed and of a comparable size to the clypeus. The coloration is almost always inconspicuous, with tones of yellow, brown, black and very rarely red.

Biology

All known species are gregarious or solitary ectoparasitoids of symphytan larvae.

Distribution

Adelognathus has a Holarctic distribution, with about 30 species occurring in northern Europe. Little is known of each species' range and conservation status, a consequence of how rarely Adelognathus is collected.

Identification

A key to northern European species is provided here which is almost entierly based on Kasparyan (1990).

References

Finlands Artdatacenter 2024. LAJI.FI: Adelognathus. https://laji.fi/sv/taxon/MX.309116[2024-07-11]

Kasparyan D. R. 1990. Fauna of USSR, Insecta Hymenoptera, Ichneumonidae Subfamily Tryphoninae: Tribe Exenterini, Subfamily Adelognathinae. Nauka Leningrad, 3(2), 11–136.

Riedel, M., & Magnusson, P. 2017. The genus Adelognathus HOLMGREN (Hymenoptera, Ichneumonidae: Adelognathinae) in Sweden - Second contribution to the Swedish Malaise trap project. Entomofauna, 38(25), 513–528.

SLU Artdatabanken 2024. Artfakta: Adelognathus. https://artfakta.se/taxa/1000034[2024-07-11]

Yu, D.S.K., van Achterberg, C. & Horstmann, K. 2016. Taxapad 2016, Ichneumonoidea 2015 (Biological and taxonomical information), Taxapad Interactive Catalogue Database on flashdrive. Nepean, Ottawa.

BugWeb

BugWeb

Northern European species

Keys

Gallery