Temnostoma excentricum
In 3 days ~10% in a week ~20%
Temnostoma excentrica (Harris, 1841 ), the Black-spotted Falsehorn, is a common species of syrphid fly observed throughout the United States and Canada. Hoverflies can remain nearly motionless in flight. The adults are also known as flower flies for they are commonly found on flowers, from which they get both energy-giving nectar and protein-rich pollen. Temnostoma adults are strong wasp mimics. The larvae burrow in moist decayed wood. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Elk Island National Park | 🇨🇦 Canada | |
| 2 | Acadia National Park | 🇺🇸 United States | |
| 3 | Great Smoky Mountains National Park | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Temnostoma excentricum sighting in Edmonton on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 295th most-seen of the 390 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
June
In that month about 10% of wildlife watchers report a Temnostoma excentricum in Edmonton on a given day, against under 5% in July to May, the lowest months. That is one of Edmonton's wettest months, with about 85 mm of rain against 20 mm in February.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Temnostoma excentricum sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 cities where we can rate Temnostoma excentricum sightings, Edmonton has the highest daily chance: under 5%. Next come Vancouver (Canada, under 5%).
Same family: Syrphidae
The closest relatives of the Temnostoma excentricum that you can see in Edmonton (family Syrphidae, Hover Flies) are Common Drone Fly (about 10%), Margined Calligrapher (about 10%) and White-Bowed Smoothwing (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Temnostoma excentricum is recorded against all the insects logged in Edmonton (6 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
