# vein

> chitinous thickening in the wings of insects

**Wikidata**: [Q9397906](https://www.wikidata.org/wiki/Q9397906)  
**Source**: https://4ort.xyz/entity/vein-q9397906


## References

1. [Source](https://encyklopedia.pwn.pl/haslo/zylki;4003322.html)