Dacnusini

Genus Guides

3

Dacnusini is a -rich tribe within the braconid Alysiinae, comprising over 400 species in Europe alone. Members are exclusively of leaf-mining Diptera, particularly Agromyzidae, with some species associated with Chloropidae. The tribe has been subject to extensive taxonomic revision due to its morphological diversity and economic relevance in .

Chorebus by no rights reserved, uploaded by Mike Palmer. Used under a CC0 license.Chorebus by no rights reserved, uploaded by Mike Palmer. Used under a CC0 license.Chorebus by no rights reserved, uploaded by Mike Palmer. Used under a CC0 license.

Pronunciation

How to pronounce Dacnusini: /dækˈnuːsɪnaɪ/

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

Identification

Dacnusini can be distinguished from other Alysiinae tribes by features of the and structure, though specific characters vary by . Genera such as Chorebus, Dacnusa, and Chaenusa are recognized by combinations of facial , wing venation, and antennal segment proportions. Identification to often requires reference to specialized keys by Nixon, Griffiths, and Tobias due to the tribe's morphological complexity.

Images

Habitat

Associated with supporting their leaf-mining dipteran , including vegetation of Equisetum (horsetails) and various herbaceous plants.

Distribution

Widespread across the Palearctic with substantial representation in Europe (426+ ), China (with new Victorovita, Coloneura, Laotris recently recorded), and Australia (limited fauna with 4 genera recently added).

Host Associations

Ecological Role

of leaf-mining flies, regulating of Agromyzidae that feed on herbaceous vegetation including Equisetum.

Human Relevance

Potential agents for agromyzid pests; taxonomic complexity requires knowledge for identification.

Similar Taxa

  • AlysiiniBoth are tribes in Alysiinae; Dacnusini distinguished by specialization on leaf-miners and specific mandibular/clypeal characters
  • Dapsilarthra genus groupFormerly confused with Dacnusini; now placed in Alysiini based on morphological and phylogenetic evidence

Sources and further reading