Heleodromia
Haliday, 1833
Heleodromia is a of small predatory in the Brachystomatidae ( Trichopezinae), with approximately 25 described distributed across the Holarctic region. The genus was established by Alexander Henry Haliday in 1833 and has been subject to recent taxonomic revision in the Nearctic region. Species are characterized by distinctive male terminalia used for species identification.
Pronunciation
How to pronounce Heleodromia: //ˌhɛliəˈdroʊmiə//
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Identification
Heleodromia are distinguished from other brachystomatid by features of the male terminalia, which are illustrated in taxonomic . The Nearctic fauna includes six recognized species: H. boreoalpina, H. chillcotti, H. cranehollowensis, H. irwini, H. pullata, and H. woodi. Species-level identification relies on examination of male structure.
Distribution
Holarctic distribution. Nearctic records include multiple across North America. Palearctic distribution includes Europe (Germany), Russian Far East, Tibet, and other parts of China. GBIF records indicate presence in Denmark, Norway, and Sweden. The Tibetan record represents a southwestward range extension within China.
Similar Taxa
- Other Brachystomatidae generaHeleodromia is distinguished within Brachystomatidae by male terminalia ; similar small predatory in s.l. require genitalic examination for separation.
More Details
Taxonomic history
Heleodromia was historically placed in but is now classified in Brachystomatidae ( Trichopezinae) based on phylogenetic revision of .
Species diversity
Approximately 25 have been described, with ongoing taxonomic work in the Nearctic and Palearctic regions. Recent descriptions include H. chillcotti (2012), H. cranehollowensis (2012), and H. woodi (2012) from North America, and H. basiflava from Tibet.