Pelastoneurus longicauda
This record describes Pelastoneurus longicauda (species). Recorded family: Dolichopodidae. Recorded order: Diptera.
Identification and Appearance

White spot on thorax, bend in M relatively abrupt, dark spots on middle and hind tibiae at insertion of bristles, face of male wide.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Diptera (Flies)
- Superfamily
- Empidoidea
- Family
- Dolichopodidae (Longlegged Flies)
- Subfamily
- Dolichopodinae
- Genus
- Pelastoneurus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
Eastern USA, possibly California
About Flies: the wider group
Order-level background for Diptera, the group containing Pelastoneurus longicauda. Species-specific details appear above.
Group overview
Diptera includes over 150,000 described species of flies, mosquitoes, and midges. Mosquitoes are the deadliest animal on Earth (CDC). Malaria alone causes ~249 million cases and over 608,000 deaths annually, mostly children under 5 (WHO). Vector-borne diseases account for over 17% of all infectious diseases, causing 700,000+ deaths per year.
Ecological role of the group
Despite their disease impact, flies are critical decomposers and pollinators. Hoverflies alone pollinate hundreds of crop and wildflower species. Flies are also the primary food source for many birds, bats, and fish. Forensic entomology relies heavily on fly species for crime scene analysis.
Economic and practical significance of the group
In the U.S., vector-borne disease cases tripled between 2004-2016, with over 640,000 cases reported in that period (CDC). Tickborne diseases doubled from 22,000 to 48,000 annual reports. Globally, mosquito-borne diseases cost billions in healthcare and lost productivity.
Recorded sources for this group: WHO, CDC, PNAS. Imported estimates may describe particular regions or reporting periods.
Photos of Pelastoneurus longicauda (2)
Photo credits: Contributed by John F. Carr
Frequently Asked Questions About Pelastoneurus longicauda
What is Pelastoneurus longicauda?
Pelastoneurus longicauda is a species in the family Dolichopodidae, within the order Diptera.
How do you identify Pelastoneurus longicauda?
White spot on thorax, bend in M relatively abrupt, dark spots on middle and hind tibiae at insertion of bristles, face of male wide.
Where is Pelastoneurus longicauda found?
Range: Eastern USA, possibly California
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