Melaphis rhois
In 3 days ~10% in a week ~20%
Melaphis rhois is an aphid species first identified by Asa Fitch in 1866. Known as the staghorn sumac aphid, it is in the genus Melaphis. It is a type of woolly aphid and one of the few aphids that induce the formation of galls. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Toronto | 🇨🇦 Canada | |
| 3 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 4 | Montreal | 🇨🇦 Canada | |
| 5 | Washington | 🇺🇸 United States | |
| 6 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Sumac Gall Aphid sighting in Washington on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 920th most-seen of the 1807 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Sumac Gall Aphid in Washington on a given day, so our monthly data shows no clear season.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Sumac Gall Aphid sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 6
Of the 6 cities where we can rate Sumac Gall Aphid sightings, Washington ranks 5th at under 5%. The best odds are in Boston (United States, about 10%), Toronto (Canada, under 5%) and Minneapolis [Saint Paul] (United States, under 5%).
Same family: Aphididae
The closest relatives of the Sumac Gall Aphid that you can see in Washington (family Aphididae, Aphids) are Oleander Aphid (about 10%), Witch-Hazel Cone Gall Aphid (about 10%) and Beech Blight Aphid (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sumac Gall Aphid is recorded against all the insects logged in Washington (16 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.
