About the site
Credits
Who and what this site stands on. The readers whose messages led to a change, the works its statements lean on, and the software it is made with.
People who helped
A reader is named here when a message they sent led to a change, and only if they gave a name. To have a name taken off, send a problem report that names this page.
Nobody is named yet. Send a message and this list can start with you.
Works the site leans on
These are the sources behind the most statements. A shop page or a hobby table is cited for what it says, and each statement carries its own evidence level.
- Springtail hobbyist catalogue 2026
- Springtail Identification and Common Name Resource Pavy R
- Springtail Care Sheet
- Springtail keeper table 2026
- Major Springtail Hobby Identification Updates (2026) Pavy R, 2026
- Taxonomic review and phylogenetic analysis of fifteen North American Entomobrya (Collembola, Entomobryidae), including four new species Katz AD, Giordano R, Soto-Adames F, 2015
- Springtail Care & Breeding Information
- Springtails US shop: one product page for each springtail
- Biology of the Springtails (Insecta: Collembola) Hopkin SP, 1997
- Checklist of the Collembola: Glossary of Morphological Terms Janssens F
Names and classification
Names, ranks and authorships follow the Checklist of the Collembola of the World by Bellinger, Christiansen, and Janssens, with GBIF as a second opinion. Where the two disagree, the page says so.
Outside records are linked and never copied. A taxon links to its Checklist and GBIF records, and a species links to iNaturalist where it has a page there.
Pictures
The animals are drawn by the site's own code, as flat drawings and as 3D models, so a mistake can be found and fixed. The site hosts no photographs. Species pages link to iNaturalist for photographs and an observation map, and each photograph stays with the person who took it, under the licence they chose there.
Software
The site is made with open source software. Each package is named with the licence it states for itself.
- Astro (MIT). Builds every page.
- Preact (MIT). Runs the tools in your browser.
- Preact Signals (MIT). Holds the state of those tools.
- Hono (MIT). Runs the Worker that takes your messages and serves the data files.
- jose (MIT). Checks the sign-in of the people who edit the site.
- Zod (MIT). Checks every data file and every message.
- qrcode-generator (MIT). Draws the QR codes on care cards.
- sharp (Apache-2.0). Makes the pictures that show when a link is shared.
- yaml (ISC). Reads the data files.
- esbuild (MIT). Bundles the offline service worker.
The site runs on Cloudflare. Workers serve the pages and the files, D1 holds the messages, R2 holds the data files, and Turnstile checks that a message comes from a person.
Using this work
The text and the data are published under CC BY 4.0, and the code under the MIT licence. The open data page says how to credit the data.