Pseudacteon curvatus
This record describes Pseudacteon curvatus (species). Recorded family: Phoridae. Recorded order: Diptera.
Identification and Appearance
The only Pseudacteon in our area with a long curved ovipositor that parasitizes Solenopsis invicta : Introduced from South America to control the invasive South American fire ant Solenopsis invicta. One of six species of Pseudacteon introduced to the SE. Released along with P. tricuspis (Porter et.al., Florida Entomologist 84(4), Dec 2001)
Classification
Habitat and Range
Geographic Range
Introduced in the SE states to control RIFA.
Diet and Behavior
Life History
Parasitoid of Solenopsis invicta . Females find fire ant congregations and disrupt foraging by attacking and laying eggs into them relentlessly, allowing other ants to compete better. Larvae pupate in the ants head capsule and emerge after being dumped out of the nest.
About Flies: the wider group
Order-level background for Diptera, the group containing Pseudacteon curvatus. 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 Pseudacteon curvatus (5)
Photo credits: Contributed by Steven Wang
Frequently Asked Questions About Pseudacteon curvatus
What is Pseudacteon curvatus?
Pseudacteon curvatus is a species in the family Phoridae, within the order Diptera.
How do you identify Pseudacteon curvatus?
The only Pseudacteon in our area with a long curved ovipositor that parasitizes Solenopsis invicta :
Where is Pseudacteon curvatus found?
Range: Introduced in the SE states to control RIFA.
What is the life cycle of a Pseudacteon curvatus?
Parasitoid of Solenopsis invicta . Females find fire ant congregations and disrupt foraging by attacking and laying eggs into them relentlessly, allowing other ants to compete better. Larvae pupate in the ants head capsule and emerge after being dumped out of the nest.