DipteraTabanidae – Horse and Deer Flies

Chrysops carbonarius

This record describes Chrysops carbonarius (species). Recorded family: Tabanidae. Recorded order: Diptera.

Identification and Appearance

Chrysops carbonarius - Chrysops carbonarius
Contributed by Tony; Additional contributions by v belov , metrioptera

Female: A black deer fly. Abdomen black but perhaps with an indefinite pattern of grayish pruinose areas. Area of wing beyond the crossband hyaline. Crossband relatively straight and reaching hind margin of wing. Wing cell cua1 with distinct hyaline spot at its base. Face (clypeus) below antennae with yellow median pollinose stripe on a black background. No other species of black deer fly has this combination of characters. useful key

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Diptera (Flies)
Family
Tabanidae (Horse and Deer Flies)
Subfamily
Chrysopsinae
Tribe
Chrysopsini
Genus
Chrysops

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

Larvae in the sand and gravel banks of swiftly flowing streams. Females may wander widely in search of a blood meal.

Geographic Range

Minnesota to Nova Scotia, south to Louisiana and northern Florida

Seasonal Activity

Flight season: May to July; earlier in south than in north

Additional species information

Species notes from the sources

Etymology: Chrysops carbonarius Walker 1848

About Flies: the wider group

Order-level background for Diptera, the group containing Chrysops carbonarius. 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.

Explore Diptera families and species →

Photos of Chrysops carbonarius (5)

Chrysops carbonarius - photo 1
Contributed by Tony; Additional contributions by v belov , metrioptera
Chrysops carbonarius - photo 2
Contributed by Tony; Additional contributions by v belov , metrioptera
Chrysops carbonarius - photo 3
Contributed by Tony; Additional contributions by v belov , metrioptera
Chrysops carbonarius - photo 4
Contributed by Tony; Additional contributions by v belov , metrioptera
Chrysops carbonarius - photo 5
Contributed by Tony; Additional contributions by v belov , metrioptera

Photo credits: Contributed by Tony; Additional contributions by v belov , metrioptera

Frequently Asked Questions About Chrysops carbonarius

What is Chrysops carbonarius?

Chrysops carbonarius is a species in the family Tabanidae, within the order Diptera.

How big is Chrysops carbonarius?

7-10 mm

How do you identify Chrysops carbonarius?

Female: A black deer fly. Abdomen black but perhaps with an indefinite pattern of grayish pruinose areas. Area of wing beyond the crossband hyaline. Crossband relatively straight and reaching hind margin of wing. Wing cell cua1 with distinct hyaline spot at its base. Face (clypeus) below antennae with yellow median pollinose stripe on a black background. No other species of black deer fly has this combination of characters. useful key

Where is Chrysops carbonarius found?
FeatureDetails
HabitatLarvae in the sand and gravel banks of swiftly flowing streams. Females may wander widely in search of a blood meal.
RangeMinnesota to Nova Scotia, south to Louisiana and northern Florida
When is Chrysops carbonarius active?

Chrysops carbonarius: seasonal activity - Flight season: May to July; earlier in south than in north.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Tony; Additional contributions by v belov , metrioptera. Contributors retain copyright over their individual contributions.