The Systematics of the Subfamily Ornithodorinae (Acarina: Argasidae). V. a Revised Key to Larval Argasidae of the Western Hemisphere and Description of Seven New Species of Ornithodoros

Described as new, from larvae only, are: Ornithodoros (Alectorobius) casebeeri from the rodent, Ototylomys sp., in Costa Rica; O. (A.) chironectes from water opossum, Chironectcs minimus, and cotton rat, Sigmodon hispidus griseus, in Nicaragua; O. (A.) clarki from bats, Pteronotus davyi fulvus and P. suapurensis, in Nicaragua; O. (A.) knoxjonesi from bat, Balantiopteryx p. plicata, in Nicaragua; O. (A.) marmosae from murine opossum, Marmosa robinsoni, and mouse, Rhipidomys sp., in Venezuela and Colombia; O. (A.) tiptoni from bat, Noctilio leporinus, from Venezuela and O. (A.) tuttlei from paca, Agouti paca, and tapir, Tapirus terrestris, in Venezuela. In addition, the following species described by Kohls, Clifford, and Jones are now placed in the subgenus Alectorobius: O. setosus, O. eptesicus, O. peruvianus, O. peropteryx, O. mimon, and O. echimys.