Dialysis dispar
This record describes Dialysis dispar (species). Recorded family: Xylophagidae. Recorded order: Diptera.
Identification and Appearance

Distinguished from all but one species of Dialysis by having an outer as well as an inner spur on the front tibia. Male distinguished from D. kesseli by having indistinct vitta, the mesothorax, scutellum, and hind coxa fuscous, and the basistyle with a ventral opening Also much more common and widespread.
Wikipedia reference for Dialysis dispar: https://en.wikipedia.org/wiki/Dialysis_dispar.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Diptera (Flies)
- Superfamily
- Empidoidea
- Family
- Xylophagidae
- Genus
- Dialysis
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
w. NA (Vancouver, BC to CA-ID)
Additional species information
Species notes from the sources
Etymology: Dialysis dispar Bigot 1879
About Flies: the wider group
Order-level background for Diptera, the group containing Dialysis dispar. 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 Dialysis dispar (3)
Photo credits: Contributed by John F. Carr; Additional contributions by v belov
Frequently Asked Questions About Dialysis dispar
What is Dialysis dispar?
Dialysis dispar is a species in the family Xylophagidae, within the order Diptera.
How do you identify Dialysis dispar?
Distinguished from all but one species of Dialysis by having an outer as well as an inner spur on the front tibia. Male distinguished from D. kesseli by having indistinct vitta, the mesothorax, scutellum, and hind coxa fuscous, and the basistyle with a ventral opening Also much more common and widespread.
Where is Dialysis dispar found?
Range: w. NA (Vancouver, BC to CA-ID)
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