Thera juniperata
In 3 days ~10% in a week ~20%
The juniper carpet (Thera juniperata) is a moth of the family Geometridae. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. It is found throughout Europe and the Near East, but is rather uncommon and locally distributed, mainly due to its very specific larval food plant. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Juniper Carpet sighting in Vancouver on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 278th most-seen of the 482 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.
October and November
In those months about 10% of wildlife watchers report a Juniper Carpet in Vancouver on a given day, against under 5% in December to September, the lowest months. Those are among Vancouver's wettest months, with about 170 mm of rain a month against 25 mm in July.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Juniper Carpet sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
6th of 6
Of the 6 cities where we can rate Juniper Carpet sightings, Vancouver ranks 6th at under 5%. The best odds are in Warsaw (Poland, about 10%), Minsk (Belarus, about 10%) and Helsinki (Finland, under 5%).
Same family: Geometridae
The closest relatives of the Juniper Carpet that you can see in Vancouver (family Geometridae, Geometer Moths) are Hemlock Looper Moth (about 10%) and Phantom Hemlock Looper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Juniper Carpet is recorded against all the insects logged in Vancouver (12 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.
