Adelius

Haliday, 1833

Species Guides

Adelius is a of minute in the Braconidae, first described by Haliday in 1833. in this genus are associated with leaf-mining insects as . The genus has a global distribution including the Nearctic, Neotropical, Palearctic, and Afrotropical regions, with recent taxonomic revisions significantly expanding known in the New World and Africa.

Adelius by (c) Elliott Gordon, some rights reserved (CC BY), uploaded by Elliott Gordon. Used under a CC-BY license.

Adelius coloradensis by the Smithsonian. Used under a CC0 license.

Pronunciation

How to pronounce Adelius: /əˈdiːlɪəs/

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

Identification

Members of Adelius can be distinguished from related in the tribe Adeliini by morphological characters detailed in taxonomic keys for the New World . The genus Paradelius is the most closely related genus, also within Adeliini. Minute body size is a notable characteristic that affects sampling frequency. Specific diagnostic features for the genus require examination of detailed morphological characters described in revisionary works.

Images

Habitat

Middle to high elevations; dry forests. In Iran, collected among Tamarix stricta and Tamarix aphylla shrubs in wetland areas.

Distribution

Nearctic Region; Neotropical Region; Palearctic Region (including Iran, Denmark, Norway, Sweden); Afrotropical Region (including Angola). The has a wide distribution in the neotropics, especially at middle to high elevations.

Host Associations

leaf-mining hosts - General association for the ; specific host not identified in most cases
Nepticulidae - Adelius aridus associated with unknown nepticulid on Tamarix aphylla in Iran
Tamarix aphylla - indirect plant of host; collection site for A. aridus

Behavior

Not commonly sampled due to minute size.

Ecological Role

of leaf-mining insects, potentially contributing to regulation of .

Similar Taxa

ParadeliusMost closely related within the tribe Adeliini; both genera share minute size and associations with leaf-mining . Distinguished by morphological characters detailed in taxonomic keys.

More Details

Taxonomic History

The was first described by Alexander Henry Haliday in 1833. A major revision of New World in 2019 described 16 new Neotropical species and provided first descriptions of females for two Nearctic species (A. coloradensis and A. nigripectus).

Sampling Challenges

Adeliine are not commonly sampled because of their minute size and specific associations with leaf-mining , likely leading to underestimation of their actual diversity and distribution.