Senotainia vigilans
This record describes Senotainia vigilans (species). Recorded family: Sarcophagidae. Recorded order: Diptera.
Identification and Appearance

Very similar to S. litoralis, but that species has a completely dark abdomen. Also similar to S. rubriventris, but that species has narrower genae, different male genitalia, and less thickened aristae.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Diptera (Flies)
- Superfamily
- Oestroidea
- Family
- Sarcophagidae (Flesh Flies)
- Subfamily
- Miltogramminae
- Genus
- Senotainia
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Often seen near the nests of its hosts.
Geographic Range
Northeastern USA (MN to MA, south to IA - NJ) as well as Mississippi.
Diet and Behavior
Life History
Females lay their eggs in the nests of various wasps (Bicyrtes quadrifasciata, Bicyrtes ventralis, and Bembix spinolae are known hosts). The larvae consume the provisions the wasp has gathered.
About Flies: the wider group
Order-level background for Diptera, the group containing Senotainia vigilans. 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 Senotainia vigilans (3)
Photo credits: Contributed by Brad Barnd
Frequently Asked Questions About Senotainia vigilans
What is Senotainia vigilans?
Senotainia vigilans is a species in the family Sarcophagidae, within the order Diptera.
How do you identify Senotainia vigilans?
Very similar to S. litoralis, but that species has a completely dark abdomen. Also similar to S. rubriventris, but that species has narrower genae, different male genitalia, and less thickened aristae.
Where is Senotainia vigilans found?
| Feature | Details |
|---|---|
| Habitat | Often seen near the nests of its hosts. |
| Range | Northeastern USA (MN to MA, south to IA - NJ) as well as Mississippi. |
What is the life cycle of a Senotainia vigilans?
Females lay their eggs in the nests of various wasps (Bicyrtes quadrifasciata, Bicyrtes ventralis, and Bembix spinolae are known hosts). The larvae consume the provisions the wasp has gathered.
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