Boisea trivittata
In 3 days ~40% in a week ~70%
Boisea trivittata, also called the eastern boxelder bug, box bug, or maple bug, is a species of true bug native to eastern North America. The western boxelder bug, Boisea rubrolineata, is a relative of this species and is native to western North America. Eastern boxelder bugs are found primarily on boxelder, other maples, and ash trees.
Trivittata is from the Latin tri (three) + vittata (banded). The adults are about 13 millimetres (0.51 in) long with a dark brown or black coloration, relieved by red wing veins and markings on the abdomen, with dark red eyes; nymphs are bright red.
Eastern boxelder bugs feed almost entirely on the developing seeds of boxelder, maple, and ash trees. Eastern boxelder bugs feed, lay eggs and develop on boxelder trees, most commonly occurring on female trees as they produce seeds. Eastern boxelder bugs prefer seeds; however, they also suck leaves. They can be frequently observed on maples, as these trees provide them with seeds as well. Eastern boxelder bugs overwinter in plant debris or protected human-inhabited places and other suitable structures.
The eastern boxelder bug... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Zion National Park | 🇺🇸 United States | |
| 2 | Guadalupe Mountains National Park | 🇺🇸 United States | |
| 3 | Shenandoah National Park | 🇺🇸 United States | |
| 4 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 5 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Santiago | 🇨🇱 Chile | |
| 2 | Mendoza | 🇦🇷 Argentina | |
| 3 | Salt Lake City | 🇺🇸 United States | |
| 4 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 5 | Baltimore | 🇺🇸 United States | |
| 6 | Calgary | 🇨🇦 Canada | |
| 7 | Toronto | 🇨🇦 Canada | |
| 8 | Montreal | 🇨🇦 Canada | |
| 9 | Detroit | 🇺🇸 United States | |
| 10 | Philadelphia | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report an Eastern Boxelder Bug sighting in Toronto on a given day, based on 1,084 verified sightings from GBIF citizen-science data. It is the 17th most-seen of the 1689 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
October
In that month about 30% of wildlife watchers report an Eastern Boxelder Bug in Toronto on a given day, against about 10% in January–February and May–August, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Eastern Boxelder Bug sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
7th of 20
Of the 20 cities where we can rate Eastern Boxelder Bug sightings, Toronto ranks 7th at about 20%. The best odds are in Santiago (Chile, about 40%), Mendoza (Argentina, about 30%) and Salt Lake City (United States, about 30%).
GBIF citizen-science records
It is estimated from how often the Eastern Boxelder Bug is recorded against all the insects logged in Toronto (1,084 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.
