Anthrenus verbasci
In 3 days ~30% in a week ~60%
The varied carpet beetle (Anthrenus verbasci) is a 3 mm-long beetle belonging to the family Dermestidae, positioned in subgenus Nathrenus. They are a common species, often considered a pest of domestic houses and, particularly, natural history museums, where the larvae may damage natural fibers and can damage carpets, furniture, clothing, and insect collections. A. verbasci was also the first insect to be shown to have an annual behavioral rhythm and remains a classic example of circannual cycles in animals.
Adult A. verbasci range in length from 1.7 to 3.5 mm (0.07 to 0.14 in). The body is rounded, almost spherical. The elytra and pronotum are covered in fine scales of different colours, creating an irregular pattern of white, brownish and yellowish patches on these features. The white scales are focussed along the lateral margins of the pronotum and on the elytra, where they form three bright, wavy transverse bands. In addition to these morphological features, their antennae are 11-segmented, with a club of 3 segments.
This species is present in most of Europe, in the eastern Palearctic realm, in the Near East, in the Nearctic realm... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Monfragüe National Park | 🇪🇸 Spain | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 3 | Cévennes National Park | 🇫🇷 France | |
| 4 | Shenandoah National Park | 🇺🇸 United States | |
| 5 | Blue Mountains National Park | 🇦🇺 Australia | |
| 6 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 7 | Wadden Sea National Park | 🇩🇪 Germany | |
| 8 | Pyrénées National Park | 🇫🇷 France | |
| 9 | Table Mountain National Park | 🇿🇦 South Africa |
With luck
About 10% of wildlife watchers report a Varied Carpet Beetle sighting in Algiers on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 77th most-seen of the 133 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
March
In that month about 30% of wildlife watchers report a Varied Carpet Beetle in Algiers on a given day, against under 5% in June to February, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Varied Carpet Beetle sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
9th of 74
Of the 74 cities where we can rate Varied Carpet Beetle sightings, Algiers ranks 9th at about 10%. The best odds are in Jerusalem (Israel, about 20%), Mendoza (Argentina, about 10%) and Lyon (France, about 10%).
GBIF citizen-science records
It is estimated from how often the Varied Carpet Beetle is recorded against all the insects logged in Algiers (9 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.
