Deloyala guttata
In 3 days ~10% in a week ~20%
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 Boston on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 565th most-seen of the 1200 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.
July
In that month about 10% of wildlife watchers report a Mottled Tortoise Beetle in Boston on a given day, against under 5% in August to June, 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, Boston ranks 7th at under 5%, level with the leaders once rounded. The best odds are in Washington (United States, under 5%), Baltimore (United States, under 5%) and Montreal (Canada, under 5%).
Same family: Chrysomelidae
The closest relatives of the Mottled Tortoise Beetle that you can see in Boston (family Chrysomelidae, Leaf Beetles) are Spotted Cucumber Beetle (about 10%), Willow Leaf Beetle (about 10%) and Golden Tortoise 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 Boston (17 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.
