Eastern Boxelder Bug

Eastern Boxelder Bug

Boisea trivittata

Daily sighting probability ~20% · Possible
at Minneapolis [Saint Paul]

In 3 days ~50% in a week ~80%

512 Verified sightings at Minneapolis [Saint Paul]
200 In all 5 parks From 2019 to 2026
October Best month
☀️ Diurnal When it's spotted

About the Eastern Boxelder Bug

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 →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Zion National Park 🇺🇸 United States
~40%
2 Guadalupe Mountains National Park 🇺🇸 United States
~20%
3 Shenandoah National Park 🇺🇸 United States
~10%
4 Great Smoky Mountains National Park 🇺🇸 United States
~10%
5 Cumbres de Monterrey National Park 🇲🇽 Mexico
<5%

Cities Where Found

# City Country Daily sighting probability
1 Santiago 🇨🇱 Chile
~40%
2 Mendoza 🇦🇷 Argentina
~30%
3 Salt Lake City 🇺🇸 United States
~30%
4 Minneapolis [Saint Paul] 🇺🇸 United States
~20%
5 Baltimore 🇺🇸 United States
~20%
6 Calgary 🇨🇦 Canada
~20%
7 Toronto 🇨🇦 Canada
~20%
8 Montreal 🇨🇦 Canada
~10%
9 Detroit 🇺🇸 United States
~10%
10 Philadelphia 🇺🇸 United States
~10%

Before you go

What are the chances of seeing an Eastern Boxelder Bug in Minneapolis [Saint Paul]?

Possible

About 20% of wildlife watchers report an Eastern Boxelder Bug sighting in Minneapolis [Saint Paul] on a given day, based on 512 verified sightings from GBIF citizen-science data. It is the 17th most-seen of the 672 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.

When is the best time to see an Eastern Boxelder Bug in Minneapolis [Saint Paul]?

October

In that month about 40% of wildlife watchers report an Eastern Boxelder Bug in Minneapolis [Saint Paul] on a given day, against about 10% in May, July–August and December, the lowest months.

What time of day is best to see an Eastern Boxelder Bug?

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.

Is Minneapolis [Saint Paul] the best place to see an Eastern Boxelder Bug?

4th of 20

Of the 20 cities where we can rate Eastern Boxelder Bug sightings, Minneapolis [Saint Paul] ranks 4th at about 20%. The best odds are in Santiago (Chile, about 40%), Mendoza (Argentina, about 30%) and Salt Lake City (United States, about 30%).

Which relatives of the Eastern Boxelder Bug live in Minneapolis [Saint Paul]?

Same order: Hemiptera

The closest relatives of the Eastern Boxelder Bug that you can see in Minneapolis [Saint Paul] (order Hemiptera, True Bugs, Hoppers, Aphids, and allies) are Brown Marmorated Stink Bug (about 20%), Four-Lined Plant Bug (about 10%) and Hackberry Nipplegall Psyllid (about 10%), with each one's daily chance of a sighting.

Where does the Eastern Boxelder Bug sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Eastern Boxelder Bug is recorded against all the insects logged in Minneapolis [Saint Paul] (512 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.

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