DipteraBombyliidae – Bee Flies

Bombylius pygmaeus

This record describes Bombylius pygmaeus (species). Recorded family: Bombyliidae. Recorded order: Diptera.

Identification and Appearance

Bombylius pygmaeus - Bombylius pygmaeus
Contributed by Cotinis; Additional contributions by Robin McLeod , Ben Coulter

Thorax dark brown, outlined in yellowish-white; spots on wings distinctly separate (not coalesced into bands or blotches, as in the similar B. pulchellus ).

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Diptera (Flies)
Superfamily
Asiloidea
Family
Bombyliidae (Bee Flies)
Subfamily
Bombyliinae
Tribe
Bombyliini
Genus
Bombylius

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

Habitat and Range

Geographic Range

Widespread: Alaska, Canada, Northeastern United States, south to Georgia, also in China (Bee Flies of Ontario)

Seasonal Activity

Spring. April (eastern North Carolina), May (mountains of North Carolina). May-June (Ontario)

Diet and Behavior

Diet: Adults likely take nectar.

Life History

Parasitoids of solitary bees.

Additional species information

Species notes from the sources

Etymology: Species name pygmaeus from Greek pygm , dwarf .

About Flies: the wider group

Order-level background for Diptera, the group containing Bombylius pygmaeus. 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 Bombylius pygmaeus (5)

Bombylius pygmaeus - photo 1
Contributed by Cotinis; Additional contributions by Robin McLeod , Ben Coulter
Bombylius pygmaeus - photo 2
Contributed by Cotinis; Additional contributions by Robin McLeod , Ben Coulter
Bombylius pygmaeus - photo 3
Contributed by Cotinis; Additional contributions by Robin McLeod , Ben Coulter
Bombylius pygmaeus - photo 4
Contributed by Cotinis; Additional contributions by Robin McLeod , Ben Coulter
Bombylius pygmaeus - photo 5
Contributed by Cotinis; Additional contributions by Robin McLeod , Ben Coulter

Photo credits: Contributed by Cotinis; Additional contributions by Robin McLeod , Ben Coulter

Frequently Asked Questions About Bombylius pygmaeus

What is Bombylius pygmaeus?

Bombylius pygmaeus is a species in the family Bombyliidae, within the order Diptera.

How big is Bombylius pygmaeus?

6-10 mm (Bee Flies of Ontario)

How do you identify Bombylius pygmaeus?

Thorax dark brown, outlined in yellowish-white; spots on wings distinctly separate (not coalesced into bands or blotches, as in the similar B. pulchellus ).

Where is Bombylius pygmaeus found?

Range: Widespread: Alaska, Canada, Northeastern United States, south to Georgia, also in China (Bee Flies of Ontario)

What does Bombylius pygmaeus eat?

The diet of the Bombylius pygmaeus includes Adults likely take nectar..

When is Bombylius pygmaeus active?

Bombylius pygmaeus: seasonal activity - Spring. April (eastern North Carolina), May (mountains of North Carolina). May-June (Ontario).

What is the life cycle of a Bombylius pygmaeus?

Parasitoids of solitary bees.

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

Photo credits: Contributed by Cotinis; Additional contributions by Robin McLeod , Ben Coulter. Contributors retain copyright over their individual contributions.