Type Locality : San Bernardino, CA, United States
Etymology : The specific name is a noun in apposition taken from the type locality, Joshua Tree National Monument.
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Two new species of Aphonopelma from the Mojave Desert are described, A. joshua and
A. mojave. Four nominal species, Aphonopelma iodium (A. iodius), A. melanium (A. melanius), A. angusi, A. nevadanum, described from the Mojave Desert and the Great Basin are treated as a single species ;
Aphonopelma iodium (Chamberlin 1939) is proposed as the species name since it is one of two possible
senior synonyms (the other, A. melanium (A. melanius) in the same publication) and is the specific nam e
of the first Theraphosidae to be described from the Mojave Desert ; A. iodium is redescribed. Generic,
subgeneric, and specific characters previously used to separate Aphonopelma are reviewed. Aphonopelma
is redefined; Clavopelma is removed from the synonymy of Aphonopelma. The status of the following
eight species described prior to 1939 with type localities either in the United States or in Baja, Californi a
is discussed: Aphonopelma californica, A. leiogaster (Doleschall), A. steindachneri (Ausserer), A. rusticum, A. marxi, A. helluo (Simon), A. rileyi (Marx), and A. pseudoroseum (Strand). Aphonopelma steindachneri , A. rusticum, A. marxi, and A. helluo are considered as valid species ; A. californica, A. leiogaster, A. rileyi,
and A. pseudoroseum are considered as nomina dubia.
Journal of Arachnology 25: 137-176