DipteraAsilidae – Robber Flies

Machimus griseus

This record describes Machimus griseus (species). Recorded family: Asilidae. Recorded order: Diptera.

Identification and Appearance

Machimus griseus - Machimus griseus
Contributed by Ken Wolgemuth; Additional contributions by v belov

Per Eric Fisher, the only Machimus in the U. S. with spotted wings.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Diptera (Flies)
Superfamily
Asiloidea
Family
Asilidae (Robber Flies)
Subfamily
Asilinae
Genus
Machimus

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

Habitat and Range

Geographic Range

sw US (NV-CO to AZ-TX)

Additional species information

Species notes from the sources

Etymology: Machimus griseus Hine 1906

About Flies: the wider group

Order-level background for Diptera, the group containing Machimus griseus. 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 Machimus griseus (5)

Machimus griseus - photo 1
Contributed by Ken Wolgemuth; Additional contributions by v belov
Machimus griseus - photo 2
Contributed by Ken Wolgemuth; Additional contributions by v belov
Machimus griseus - photo 3
Contributed by Ken Wolgemuth; Additional contributions by v belov
Machimus griseus - photo 4
Contributed by Ken Wolgemuth; Additional contributions by v belov
Machimus griseus - photo 5
Contributed by Ken Wolgemuth; Additional contributions by v belov

Photo credits: Contributed by Ken Wolgemuth; Additional contributions by v belov

Frequently Asked Questions About Machimus griseus

What is Machimus griseus?

Machimus griseus is a species in the family Asilidae, within the order Diptera.

How do you identify Machimus griseus?

Per Eric Fisher, the only Machimus in the U. S. with spotted wings.

Where is Machimus griseus found?

Range: sw US (NV-CO to AZ-TX)

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

Photo credits: Contributed by Ken Wolgemuth; Additional contributions by v belov. Contributors retain copyright over their individual contributions.