Longhorn Beetle

That's awesome :)

Cerambycidae, Cerambycinae, Trachyderini, Trachyderina, Trachyderes sp. and might be Trachyderes succinctus. https://www.flickr.com/photos/artour_a/261059629/ https://apps2.cdfa.ca.gov/publicApps/plant/bycidDB/wdetails.asp?id=6652&w=n https://www.flickr.com/photos/obooble/112558453/ http://www.projectnoah.org/spottings/116856041

Andrachydes is to my knowledge not found in Costa Rica. There is only 1 species in this genus and it is only found in Ecuador and Peru.

It probably belong to the genus Trachyderes or Andrachydes. Hard to say with absolute precision which genus it is, but it is definitively a member of the tribe Trachyderini.