Acrotomus

Holmgren, 1857

Species Guides

Acrotomus succinctus

Acrotomus is a of in the Ichneumonidae, established by Holmgren in 1857. The genus is recorded from Scandinavia, with confirmed presence in Denmark, Norway, and Sweden. As ichneumonids, members of this genus are presumed to be parasitoids of other insects, though specific associations remain poorly documented.

2021 05 14 Acrotomus succinctus1b by Slimguy. Used under a CC BY 4.0 license.

2021 05 14 Acrotomus succinctus1a by Slimguy. Used under a CC BY 4.0 license.

Pronunciation

How to pronounce Acrotomus: /əˈkrɒtəməs/

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Identification

Acrotomus can be distinguished from related ichneumonid by features of the wing venation and structure of the areolet (a small in the forewing). The genus is characterized by a reduced or modified areolet and specific arrangements of the propodeal carinae. Identification to species level requires examination of microscopic characters including flagellomere proportions and ovipositor .

Images

Distribution

Recorded from Scandinavia: Denmark (DK), Norway (NO), and Sweden (SE).

Ecological Role

As members of Ichneumonidae, in this function as , likely contributing to of their insect .

Similar Taxa

IchneumonBoth are ichneumonid with long ovipositors, but Acrotomus has a modified areolet structure and generally more slender build.
GlyptaSimilar body form and reduced wing venation, but Acrotomus differs in propodeal carination and areolet shape.

More Details

Taxonomic note

The Acrotomus is placed in the Banchinae or Campopleginae depending on classification system used; its exact subfamilial placement has been subject to revision. The genus contains relatively few described and is considered rare in collections.