Morellia aenescens
This record describes Morellia aenescens (species). Recorded family: Muscidae. Recorded order: Diptera.
Identification and Appearance
A relatively small muscid (5-7.5mm), largely black but with a pale central stripe on the thorax. See ID Guidance below. There are three UK Morellia species that all look very similar. M. simplex has bristles on the edge of the prosternum (lacking in the other two species). M. hortorum has a conspicuous row of anteroventrals on the hind tibia. Uncommon though likely to be under-recorded.
Classification
Habitat and Range
Seasonal Activity
April - September
Additional species information
Recorded status
Occasional
About Flies: the wider group
Order-level background for Diptera, the group containing Morellia aenescens. 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 Morellia aenescens (9)
Frequently Asked Questions About Morellia aenescens
What is Morellia aenescens?
Morellia aenescens is a species in the family Muscidae, within the order Diptera.
How big is Morellia aenescens?
5-7.5 mm;
When is Morellia aenescens active?
Morellia aenescens: seasonal activity - April - September.