r/whatsthisbug↗
Bug identification! All insects, spiders, crustaceans, etc. welcome!
Bug identification! All insects, spiders, crustaceans, etc. welcome!
1.3M subscribers5,938 posts / mo in Sep 2026 (incl. <1% by known bots)5,402 authors / mosince 2010
r/whatsthisbug has 1.3M members (+4.3% over the last 12 months). It gets about 5,938 posts a month from 5,402 people. Top topics: Spider ID USA, Bed Bugs and Caterpillar ID.
When to post on r/whatsthisbug
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How r/whatsthisbug has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/whatsthisbug
Top topics
Share of the subreddit's posts
- Spider ID USA1.6%
- Bed Bugs1.3%
- Caterpillar ID1.3%
- USA Bug Identification1.0%
- Beetle Identification1.0%
Brands people mention
Most-mentioned brands and sites, last 12 months
- UC Agriculture and Natural Resources
- CDC
- leps.it
- UKMoths
- Wikimedia
Everything else about r/whatsthisbug
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research