Ladybugs in Illinois in September
Yes, September is a good month to see ladybugs in Illinois. It is the 6th busiest month of the year, with 1,082 of the 12,178 sightings logged across the year (8.9%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 2, 2026.
Good month for ladybugs in Illinois
8.9%
of yearly sightings
1,082
records in September
#6
busiest month of 12
12,178
verified records a year
August 12.6%, September 8.9%, October 8.9%. Busiest month is June at 23.9%.
12,178 verified observations of ladybugs in Illinois, recorded across 12 months of the year on iNaturalist.
When ladybugs are recorded in Illinois
Peak month
June
2,906 records (23.9% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 73 | 0.6% |
| February | 114 | 0.9% |
| March | 435 | 3.6% |
| April | 877 | 7.2% |
| May | 1,411 | 11.6% |
| Junepeak | 2,906 | 23.9% |
| Julypeak | 2,034 | 16.7% |
| Augustpeak | 1,536 | 12.6% |
| September | 1,082 | 8.9% |
| October | 1,087 | 8.9% |
| November | 526 | 4.3% |
| December | 97 | 0.8% |
Ladybugs you are most likely to see
| Species | Verified observations |
|---|---|
| Asian Lady Beetle | 7,067 |
| Spotted Pink Lady Beetle | 1,495 |
| Seven-spotted Lady Beetle | 1,147 |
| Polished Lady Beetle | 491 |
| Fourteen-spotted Lady Beetle | 343 |
| Variegated Lady Beetle | 275 |
| Twenty-spotted Lady Beetle | 153 |
| Twice-stabbed Lady Beetle | 152 |
In Illinois, September carries 8.9% of the year's ladybugs sightings, about 0.6 points above an even month-to-month split. That makes it the 6th busiest of the twelve months, out of 12 months with recorded activity.
Activity is easing off from August (12.6%) into September, and it heads toward October (8.9%) after. The busiest month is June (23.9%), so if timing is flexible, that window is the safer bet.
The ladybugs most often recorded in Illinois are Asian Lady Beetle, Spotted Pink Lady Beetle and Seven-spotted Lady Beetle. Those counts are annual totals rather than a September split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in September itself.
Which ladybugs you are most likely to see
- Asian Lady Beetle7,067 records
- Spotted Pink Lady Beetle1,495 records
- Seven-spotted Lady Beetle1,147 records
- Polished Lady Beetle491 records
- Fourteen-spotted Lady Beetle343 records
- Variegated Lady Beetle275 records
Plan your ladybug trip in Illinois
Start with live tours near Lewis & Clark National Historic Trail, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Lewis & Clark National Historic Trail
Use the live GetYourGuide widget to compare local departures and activity styles close to the main ladybug viewing area.
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Stay nearbyStay near Lewis & Clark National Historic Trail
Compare hotels, cabins and lodges close to the best ladybug viewing area in Illinois.
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Broader backupBook a ladybug tour in Illinois
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Frequently asked questions
Can you see ladybugs in Illinois in September?+
Yes. September accounts for 1,082 of the 12,178 verified ladybugs sightings logged in Illinois across the year, which is 8.9% of the annual total.
Is September a good time to see ladybugs in Illinois?+
September is the 6th busiest month. It is workable, though June and July is the stronger window for a reliable sighting.
What month is best for ladybugs in Illinois?+
June is the single busiest month, with the broader peak running through June, July and August, based on 12,178 verified observations.
Which ladybugs are you most likely to see in Illinois?+
The most-recorded species in Illinois are Asian Lady Beetle, Spotted Pink Lady Beetle and Seven-spotted Lady Beetle, based on all-time iNaturalist counts.