Mod. L. trimaculatus  three-spotted, marked with three spots  < L. tri- three-  < tres  three; maculatus  spotted, blotched  < maculare  to make spotted  < macula  spot.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2019). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2019). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 23 January 2019).