Pelastoneurus
Loew, 1861
Species Guides
6Pelastoneurus is a of long-legged flies in the Dolichopodidae, established by Loew in 1861. The genus contains several recognized , though some historical names remain unrecognised or have been synonymized with other genera. As dolichopodids, members of this genus are predatory flies characterized by their elongated legs and slender bodies. The genus has been documented through over 1,300 observations, indicating it is moderately well-represented in entomological collections.
Pronunciation
How to pronounce Pelastoneurus: /pɛlæsˈtoʊnʊrəs/
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Identification
Identification to within Dolichopodidae requires examination of male genitalia and specific wing venation patterns. Pelastoneurus can be distinguished from the related genus Stenopygium by differences in genitalic structure; historically, some species were transferred between these genera based on such revisions. The genus lacks the distinctive color patterns that characterize some other dolichopodine genera.
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Ecological Role
As members of Dolichopodidae, Pelastoneurus function as in their , feeding on small arthropods. This predatory role contributes to of prey species in the they inhabit.
Similar Taxa
- StenopygiumHistorically confused with Pelastoneurus; such as Pelastoneurus punctipennis and P. variegatus have been moved to or synonymized with Stenopygium based on morphological revisions.
More Details
Taxonomic history
The has undergone significant revision, with multiple described by Walker in 1849–1852 and Macquart in 1850. Several names remain unrecognised pending further study, and at least two species have been definitively transferred to Stenopygium.
Observation frequency
The is represented by 1,385 observations in iNaturalist, suggesting it is encountered with moderate frequency by naturalists, though specific identification challenges likely result in many records remaining at level.