What are the basic morphological differences apart from the size? Is there any keys for identification?
Following are the few publications with respect to morphology. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3896430/
http://www.bioone.org/doi/full/10.1653/024.098.0155
https://academic.oup.com/ee/article-lookup/doi/10.1603/EN10181
https://academic.oup.com/aesa/article-abstract/108/3/311/2194644/The-Coffee-Berry-Borer-Coleoptera-Curculionidae?redirectedFrom=fulltext
http://www.ambrosiasymbiosis.org/wp-content/uploads/2016/08/Identification_of_CBB_from_similar_beetles_v0p1_.pdf