×Ancient Measurements => Lines
Around 1800 lines where used for measuring insect sizes. The below table can be of aid.
Line: lin., ligne, linea, linen, linien)
| place/author | (1 line in mm) |
|---|
| ?Chili | 1.9 |
| Swedish | 2.028 |
| England and Russia | 2.116 |
| British | 2.117 |
| Scopoli | 2.14 |
| Rhineland (German) | 2.179 |
| Wiedemann | 2.18 |
| German | 2.191 |
| Vienna (Austria) | 2.195 |
| Linaeus | 2.25 |
| Paris | 2.250 (- 2.256 - 2.2558) |
Sources
Ancient Measurements => Lines email discussion taxacom, Christian Thompson 2004
...from where the following sources where consulted
Linnaeus's Philosophia botanica, 262, no. 331 (1751) provides a convenient summary
Reclassification of the subfamily Agrypninae (Coleoptera: Elateridae) published in Bulletin of the British Museum (Natural History) Entomology Supplement 20: 1-309
In a German "Lexikon der Mass- und Waehrungseinheiten" (Encyclopedia of measurement and currency units. By Lutz Adron, Praesentverlag Heinz Peter, Guetersloh 1987) p. 123
Wikipedia line(unit)