The several Dipsocoridae reported from the Caribbean islands include three species of Cryptostemma: smithi McAtee & Malloch, 1925 (Grenada), uhleri McAtee & Malloch, 1925 (St. Vincent), and pratti Usinger, 1945 (Puerto Rico). In the present paper an additional Caribbean Cryptostemma is described, cobbeni sp. n. (Bonaire). I am grateful to Ir. R. H. COBBEN, of the Landbouwhogeschool at Wageningen, for the opportunity of investigating the interesting material collected by him.