Two new species of Lepanthes are described and illustrated. Lepanthes elvirae is reminiscent of L. estrellensis in the large size of the flower and the broad and rounded laminae of the lip, but can be distinguished from the latter by the glabrous sheaths of the ramicaul, the petals with lobes distinctly different in size and the lobes of the lip held subparallel to the column. Lepanthes queveriensis is most similar to L. cribbii, from which it differs by the inflorescence sub equal to longer than the leaf, the margins of the sepals entire, the shorter body of the lip, provided with two hemielliptic, low, and the rectangular, straight appendix of the lip. Considerations on orchid diversity in unexplored regions of Costa Rica are presented.