Cordilura fuscipes
This record describes Cordilura fuscipes (species). Recorded family: Scathophagidae. Recorded order: Diptera.
Identification and Appearance

James (1955) wrote, treating this species as Cordilura vittipes Loew: This is an extremely variable species; it is little wonder that it has been described under six different names. Loew described vittipes from a male and lutea from a female, both from the same locality and presumably on the same date and by the same collector. Typically, the male is predominantly black with a yellow face and yellow legs; the female typically has a yellow thorax, but the abdomen may vary from wholly yellow to wholly black. Extremes in color variation may occur within a single series, so there seems to be no way of distinguishing geographic subspecies on the basis of color variants. An occasional male may have a partly yellow thorax and an occasional female a wholly or largely black one. The femora may or may not be vittate with black.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Diptera (Flies)
- Superfamily
- Muscoidea
- Family
- Scathophagidae (Dung Flies)
- Subfamily
- Scathophaginae
- Genus
- Cordilura
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
Holarctic south to New Hampshire and New Mexico in mountains, possibly as far south as Maryland
Additional species information
Species notes from the sources
Etymology: Both fuscipes and vittipes refer to dark leg markings. More often the legs are typically unmarked yellow.
About Flies: the wider group
Order-level background for Diptera, the group containing Cordilura fuscipes. 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 Cordilura fuscipes (2)
Photo credits: Contributed by John F. Carr
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