Deloyala guttata
In 3 days ~10% in a week ~30%
Deloyala guttata, the mottled tortoise beetle, is a species of tortoise beetle in the family Chrysomelidae. It is found in the Caribbean, Central America, North America, and South America. Larva carry shields made from exuviae and frass on their abdomen that they lift to shield their dorsum from predators. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Montreal | 🇨🇦 Canada | |
| 4 | Dallas | 🇺🇸 United States | |
| 5 | Edmonton | 🇨🇦 Canada | |
| 6 | Philadelphia | 🇺🇸 United States | |
| 7 | Boston | 🇺🇸 United States | |
| 8 | Austin | 🇺🇸 United States | |
| 9 | Toronto | 🇨🇦 Canada | |
| 10 | Minneapolis [Saint Paul] | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Mottled Tortoise Beetle sighting in Montreal on a given day, based on 40 verified sightings from GBIF citizen-science data. It is the 233rd most-seen of the 926 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June and July
In those months about 10% of wildlife watchers report a Mottled Tortoise Beetle in Montreal on a given day, against under 5% in August to May, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Mottled Tortoise Beetle sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 13 cities where we can rate Mottled Tortoise Beetle sightings, Montreal ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Washington (United States, under 5%) and Baltimore (United States, under 5%).
Same family: Chrysomelidae
The closest relatives of the Mottled Tortoise Beetle that you can see in Montreal (family Chrysomelidae, Leaf Beetles) are Swamp Milkweed Leaf Beetle (about 10%), Striped Cucumber Beetle (about 10%) and Spotted Cucumber Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mottled Tortoise Beetle is recorded against all the insects logged in Montreal (40 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.
